Journal articles: 'Power Factor Correction (PFC) boost'

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Do, Hyun Lark. "AC-DC Converter with Power Factor Correction Function." Applied Mechanics and Materials 241-244 (December 2012): 763–66. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.763.

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An AC -DC converter with power factor correction (PFC) function is proposed in this paper. In the proposed converter, the boost PFC stage and the active-clamp DC-DC converter stage are merged into a single converter to reduce the overall cost and improve the power density. An active-clamp DC-DC converter stage can suppress the switch voltage stresses and provide zero-voltage-switching (ZVS) operation of the switches. The boost converter in PFC stage operates in discontinuous conduction mode (DCM) and it provides naturally high power factor. Due to the ZVS operation, the switching losses of the proposed converter are significantly reduced and the efficiency is improved. Steady-state analysis is performed. Simulation results are also provided to verify the effectiveness of the proposed converter.

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Liu, Qing Hui. "The Simulation Study of Soft Switching Power Factor Correction Circuit Based on MATLAB." Advanced Materials Research 846-847 (November 2013): 429–33. http://dx.doi.org/10.4028/www.scientific.net/amr.846-847.429.

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This paper discusses the soft switching circuit—Boost-ZVT converter, and studies the role of Boost-ZVT converter in the factor correction circuit(PFC). Distinguished from the past Boost converter, the Boost-ZVT converter implements the main switch of the soft turn-off, reducing switching losses and improving the system efficiency. At last, Matlab software is carried out the main circuit simulation. The simulation results show that Boost-ZVT circuit has a good effect in PFC circuit design, and has a wide application in practical circuit design.

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Xiao, Qian Hua, and Hai Jing Liu. "Research on Soft Switching Power Supply with High Power Factor Based on Boost Converter." Applied Mechanics and Materials 29-32 (August 2010): 2422–27. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.2422.

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With the development of power electronics，the technology of Switching Mode Power Supply(SMPS) is gradually perfected. However，there is no end to the demand for a high power and high performance power supply. Nowadays, Power Factor Correction (PFC) technique is widely researched. This paper mainly analyzes the fundamental configuration of the switching power supply. And we study the basic structure and the operating principles of ZVT-boost soft-switching PFC circuit and the implementing principle of soft switch. For the power requirements, the two-stage PFC circuit is used. The forward stage is a single-phase Boost Power Factor Correction circuit and the backward stage main circuit is a full-bridge converter with the phase-shifting control soft-switching technique. Finally the simulating analysis is performed to the designed system.

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Zhang, Hou Sheng. "A Single Phase High Power Factor Rectifier with UCC28019." Applied Mechanics and Materials 29-32 (August 2010): 2462–66. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.2462.

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Power factor correction (PFC) is an effective method to reduce harmonic current in power grid. A novel boost high power factor rectifier with UCC28019 is proposed. The UCC28019 8-pin active Power Factor Correction controller uses the boost topology operating in continuous conduction mode (CCM). It does not need multipliers. The use of the IC will make the PFC circuit design easily and the volume of the rectifier small. The fundamental principle of the proposed rectifier is introduced. Its sections such as current loop and over-current protection, voltage loop and over-voltage protection, and so on, are analyzed and designed respectively in detail. Experimental results of the designed 350W prototype prove that the boost high power factor rectifier is rational and reliable, its power factor can reach 0.992, and its application prospect is wide.

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Zhang, Rui, Wei Ma, Lei Wang, Min Hu, Longhan Cao, Hongjun Zhou, and Yihui Zhang. "Line Frequency Instability of One-Cycle-Controlled Boost Power Factor Correction Converter." Electronics 7, no. 9 (September 17, 2018): 203. http://dx.doi.org/10.3390/electronics7090203.

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Power Factor Correction (PFC) converters are widely used in engineering. A classical PFC control circuit employs two complicated feedback control loops and a multiplier, while the One-Cycle-Controlled (OCC) PFC converter has a simple control circuit. In OCC PFC converters, the voltage loop is implemented with a PID control and the multiplier is not needed. Although linear theory is used in designing the OCC PFC converter control circuit, it cannot be used in predicting non-linear phenomena in the converter. In this paper, a non-linear model of the OCC PFC Boost converter is proposed based on the double averaging method. The line frequency instability of the converter is predicted by studying the DC component, the first harmonic component and the second harmonic component of the main circuit and the control circuit. The effect of the input voltage and the output capacitance on the stability of the converter is studied. The correctness of the proposed model is verified with numerical simulations and experimental measurements.

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Cao, Taiqiang, Fang You, Fei Zhang, Ping Yang, Qian Luo, and Jun Wang. "DSP-Based Control of Tri-State Boost PFC Converter with High Input Power Factor for Wide Range of Load Variations." Journal of Circuits, Systems and Computers 24, no. 05 (April 8, 2015): 1550072. http://dx.doi.org/10.1142/s0218126615500723.

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Tri-state boost power factor correction (PFC) converter operating in pseudo-continuous-conduction mode (PCCM) is analyzed in this paper. The connection of power switch in parallel with inductor makes the boost converter operate in PCCM, which provides an additional degree of control freedom by inductor current freewheeling operation mode. Compared with boost PFC converter operating in continuous conduction mode (CCM) and discontinuous conduction mode (DCM), tri-state boost PFC converter extends the load range and is therefore more suitable for wide range of load variation. However, for universal input applications, the input power factor (PF) of the tri-state boost PFC converter is relatively low when the sinusoidal reference current control strategy is used. To improve the PF over the whole input voltage range, the input current and PF expressions of the tri-state boost PFC converter is derived and the non-sinusoidal reference current control strategy is proposed. A 400 W prototype of the tri-state boost PFC converter is built by using digital signal processing (DSP) as the controller. The experimental results verify the analysis results.

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Xu, Jianming, Bo Qian, and Muhammad Humayun. "A Novel Single-Stage Tandem Soft-Switching Converter with Low Input Current Distortion." Inventions 3, no. 4 (October 17, 2018): 70. http://dx.doi.org/10.3390/inventions3040070.

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In order to improve the power factor and reduce the input current harmonics, power factor correction (PFC) converters are utilized. This paper introduces a single-stage continuous conduction mode (CCM) soft-switched power factor correction (PFC) converter with a tandem topology. The proposed topology has two operating modes, namely resonant operation mode and boost operation mode. Such a design and control realizes the zero-voltage switching (ZVS) and zero current switching (ZCS) of the power switches. The proposed topology has been introduced to reduce the total harmonic distortion (THD) of the input current further in the boost PFC converter under lower power and higher output voltage conditions. The simulation and experimental results are presented to verify the effectiveness of the performance of the proposed design and its control.

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Nourani Esfetanaj, Naser, Huai Wang, Frede Blaabjerg, and Pooya Davari. "Differential Mode Noise Estimation and Filter Design for Interleaved Boost Power Factor Correction Converters." Applied Sciences 11, no. 6 (March 18, 2021): 2716. http://dx.doi.org/10.3390/app11062716.

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Interleaved power factor correction (PFC) is widely used circuit topology due to good efficiency and power density for single-switch boost PFC. As the differential mode (DM) electromagnetic interference (EMI) noise magnitude depends upon the input current ripple, this research details a comprehensive study of DM EMI filter design for interleaved boost PFC with the aim of minimizing the component size. It is also demonstrated that the different numbers of interleaved stages and switching frequency influence the filter attenuation requirement and, thus, the EMI filter size. First, an analytical model is derived on the basis of the Norton equivalent circuit model for the differential mode noises of interleaved boost PFC within the frequency range of 9–500 kHz. The derived model can help identify the proper phase shifting among the interleaved boost converters in order to minimize the considered differential mode noises at the filter design frequency. So, a novel phase-shift method is developed to get a minimized attenuation required by a filter in Band B. Further, a volume optimization of the required DM filter was introduced based on the calculated filter attenuation and volumetric component parameters. Based on the obtained results, unconventional and conventional phase shifts have demonstrated a good performance in decreasing the EMI filter volume in Band B and Band A, respectively. A 2-kW interleaved PFC case study is presented to verify the theoretical analyses and the impact of phase-shifting on EMI filter size.

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Ye, Man Yuan, and Song Li. "Simulation Study of PFC Boost Converter Based on Predicted Average Current Control." Advanced Materials Research 462 (February 2012): 738–42. http://dx.doi.org/10.4028/www.scientific.net/amr.462.738.

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Introduced to predict average current control PFC Boost converter structure, and analyzes its operating principle, the average current control strategies equation is given by derivation. And a model of predict average current control PFC Boost converter is gained using Matlab Simulink simulation software and SimPowerSystems toolbox. Simulation results show that the predicted average current control PFC Boost converter with control circuit is simple and reliable, high input power factor, anti-interference ability, current harmonic distortion, etc, and is forecast to average voltage control strategy for the active power factor correction provides a novel, simple and feasible control methods.

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Wang, Shu Hai, Shu Wang Chen, and Yue Su. "Design of Laptop Power Adapter Circuit." Applied Mechanics and Materials 427-429 (September 2013): 909–12. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.909.

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In the design of laptop power adapter, the former stage is the power factor correction PFC converter; the after stage is DC/DC converter. The control part controls chip through an integrated PFC and PFM control integrated. In this two structures, the former stage PFC often using traditional inductor current critical conduction mode Boost converter to achieve sinusoidal input current to the whole form, thus reducing input current harmonics with a high power factor, keep a long time , simple structure and low cost.

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Stepins, Deniss, and Jin Huang. "Effects of Switching Frequency Modulation on Input Power Quality of Boost Power Factor Correction Converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 2 (June 1, 2017): 882. http://dx.doi.org/10.11591/ijpeds.v8.i2.pp882-899.

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Switching frequency modulation (SFM) as spread-spectrum technique has been used for electromagnetic interference reduction in switching power converters. In this paper, a switching-frequency-modulated boost power factor correction (PFC) converter operating in continuous conduction mode is analysed in detail in terms of its input power quality. Initially, the effect of SFM on the input current total harmonic distortion, power factor and low-frequency harmonics of the PFC converter are studied by using computer simulations. Some advices on choosing parameters of SFM are given. Then the theoretical results are verified experimentally. It is shown that, from a power quality point of view, SFM can be harmful (it can significantly worsen the power quality of the PFC converter) or almost harmless. The results depend on how properly the modulation parameters are selected.

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DRANGA, OCTAVIAN, CHI K. TSE, HERBERT H. C. IU, and ISTVÁN NAGY. "BIFURCATION BEHAVIOR OF A POWER-FACTOR-CORRECTION BOOST CONVERTER." International Journal of Bifurcation and Chaos 13, no. 10 (October 2003): 3107–14. http://dx.doi.org/10.1142/s0218127403008478.

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The aim of the paper is to investigate the bifurcation behavior of the power-factor-correction (PFC) boost converter under a conventional peak current-mode control. The converter is operated in continuous-conduction mode. The bifurcation analysis performed by computer simulations reveals interesting effects of variation of some chosen parameters on the stability of the converter. The results are illustrated by time-domain waveforms, discrete-time maps and parameter plots. An analytical investigation confirms the results obtained by computer simulations. Such an analysis allows convenient prediction of stability boundaries and facilitates the selection of parameter values to guarantee stable operation.

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Baek, Jaeil, Moo-Hyun Park, Taewoo Kim, and Han-Shin Youn. "Modified Power Factor Correction (PFC) Control and Printed Circuit Board (PCB) Design for High-Efficiency and High-Power Density On-Board Charger." Energies 14, no. 3 (January 25, 2021): 605. http://dx.doi.org/10.3390/en14030605.

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This paper presents a modified power factor correction (PFC) ON/OFF control and three-dimensional (3D) printed circuit board (PCB) design for a high-efficiency and high-power density onboard charger (OBC). By alternately operating one of two boost modules of the PFC stage at a 50% or less load condition, the proposed PFC control can reduce the load-independent power loss of the PFC stage, such as core loss and capacitor charging loss of switches. It enables OBCs to have high efficiency across a wide output power range and better thermal performance. The 3D-PCB design decouples a trade-off relationship of the PCB trace design and heat spreader design, increasing the power density of OBCs. A 3.3 kW prototype composed of an interleaved totem-pole bridgeless boost PFC converter and full-bridge (FB) LLC converter has been built and tested to verify the proposed PFC control and 3D-PCB effectiveness design. The prototype has 95.7% full power efficiency (98.2% PFC stage efficiency) and 52 W/in3 power density.

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Vijay, Samridhi. "Study of Power Quality Phenomenon Based on Design and Simulation of Boost Type PFC Converters." Journal of Advanced Research in Power Electronics and Power Systems 07, no. 03 (October 3, 2020): 6–10. http://dx.doi.org/10.24321/2456.1401.202005.

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This paper present design and simulation of boost type Power Factor Correction (PFC) converter which improved the power quality. With the enormous development in the usage of power converters circuits like rectifiers which is non linear loads, the current drawn by these non- linear loads will not follow the supply voltage (i.e. non simulation). This results in high Total Harmonic Distortion (THD) and poor Power Factor (PF). Hence there is a need of converter topology to improve the PF and reduce line current harmonic. Boost type PFC converters is most popular topology for improving the PF in supply AC side. Average Current Mode (ACM) control technique is employed to control the boost converter in Continuous Conduction Mode (CCM). Simulation of proposed system is carried out using MATLAB/ Simulink platform.

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Chavhan, Rahul, and Dr Champa. "POWER FACTOR CORRECTION(PFC) PREREGULATOR USING BOOST CONVERTER FOR 2 kVA POWER SUPPLY." International Journal of Engineering Applied Sciences and Technology 5, no. 3 (July 31, 2020): 439–45. http://dx.doi.org/10.33564/ijeast.2020.v05i03.070.

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Shi, Lei, Hong Kun He, Lin Bo Wang, Jin Jin Yang, and Qian Ni Feng. "A Duty Cycle Adjustment Strategy for Embedded Boost Power Factor Correction." Applied Mechanics and Materials 392 (September 2013): 682–86. http://dx.doi.org/10.4028/www.scientific.net/amm.392.682.

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The embedded boost power factor correction (PFC), which is realized by a storable duty cycle control method, has been verified that it can achieve good performance when the input voltage is standard sinusoidal signal. But the input current can not keep the good sinusoidal waveform all the time when the amplitude of the input voltage changes. In order to solve the problem, this paper presents a duty cycle adjustment strategy for embedded boost power factor correction. This strategy can adjust the duty cycle data synchronously when the amplitude of the input voltage changes. Its test results show that the adjustment strategy can achieve better performance to make the input current follow the shape and phase of the input voltage. The proposed duty cycle adjustment strategy can get the embedded boost power factor correction more effective and practical.

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Tseng, Sheng-Yu, and Jun-Hao Fan. "Bridgeless Boost Converter with an Interleaving Manner for PFC Applications." Electronics 10, no. 3 (January 26, 2021): 296. http://dx.doi.org/10.3390/electronics10030296.

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Power quality is a critical issue in power systems. This paper proposes a bridgeless boost converter to increase the power factor of power systems using a utility line source for raising power quality. To reduce input and output current ripple, an interleaving manner is adopted in the proposed power system. When the interleaving bridgeless boost converter is used to implement power factor correction (PFC), it needs two bridgeless boost converters to process power during one switching cycle. In order to simplify the proposed bridgeless boost converter, two sets of switches in the conventional bridgeless boost one are integrated to reduce component counts. With this approach, the proposed bridgeless boost converter uses four switches to implement PFC features. Therefore, the proposed boost converter can increase conversion efficiency and decrease component counts, resulting in a higher conversion efficiency, lower cost and more simplicity for driving circuits. Finally, a prototype with a universal input voltage source (AC 90 V~265 V) under an output voltage of 400 V and a maximum output power of 1 kW has been implemented to verify the feasibility of the proposed bridgeless boost converter.

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Alshammery, Abduljabbar Owaid Hanfesh. "Prototype Hardware Implementation of a Boost Converter for DCMPFC." Wasit Journal of Engineering Sciences 5, no. 2 (May 21, 2017): 12–19. http://dx.doi.org/10.31185/ejuow.vol5.iss2.54.

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Power Factor Correction (PFC) is an essential feature of many AC/DC Power Electronics products. The issue of increasing the value of the Power Factor (PF) and increasing efficiency of transferring the power in such applications motivated this work. The integrated circuit NCP1014 was used to implement hardware of 20 W Discontinuous Conduction Modes Power Factor Correction (DCMPFC) prototype to be suitable to applications that require good performance, small size, low cost and high efficiency.In this work, a known inductive load is used, and measured the power factor with and without the proposed correction circuit, the results showed an improvement of the power factor up to 40%.The presented results that have been tested in this paper were implemented in a laboratory to show the effectiveness of the proposed system.

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Okilly, Ahmed H., and Jeihoon Baek. "Optimal Design Analysis with Simulation and Experimental Performance Investigation of High-Power Density Telecom PFC Converters." Applied Sciences 11, no. 17 (August 27, 2021): 7911. http://dx.doi.org/10.3390/app11177911.

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The spread of the 5G technology in the telecom power applications increased the need to supply high power density with higher efficiency and higher power factor. Thus, in this paper, the performance of the different power factor correction ( PFC ) topologies implemented to work with high power density telecom power applications are investigated. Two topologies, namely the conventional and the bridge interleaved continues-current-conduction mode (CCM) PFC boost converters are designed. Selection methodology of the switching elements, the manufacturing of the boost inductors, and the optimal design for the voltage and current control circuits based on the proposed small signal stability modeling are presented. The printed circuit board (PCB) for the two different PFC topologies with a power rating of 2 kW were designed. PSIM simulation and the experiments are used to show the supply current total harmonic distortions (THD), voltage ripples, power efficiency, and the power factor for the different topologies with different loading conditions.

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Wan, Qi Ming, Don Gey Liu, and Gui Xian Zhou. "Research and Investigation of the BCM Design for PFC Boost Converters." Applied Mechanics and Materials 590 (June 2014): 500–505. http://dx.doi.org/10.4028/www.scientific.net/amm.590.500.

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This paper described new working mode of Power Factor Corrector (PFC), called Boundary Continuous Mode (BCM); studied the design parameters of the critical components for the BCM-PFC in the boost topology; proposed a method and a tool for designing an L6562A-based BCM-PFC Boost Converter. The method and tool was verified on an evaluation board emulating a PFC boost converter with an 80W output power, 400Vdc output voltage and a wide range main input from 85Vac to 264Vac; and it can be easily adapted for applications with higher output power around 400W.

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Subbamma, M. Rama, V. Madhusudhan, and K. S. R. Anjaneyulu. "Design and Simulation of PFC Converter for Brushless SRM Drive." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (September 1, 2016): 625. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp625-637.

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In most of the industrial applications, Switched Reluctance Motor (SRM) is mainly employed due to the reasons like having low maintenance and high efficiency. SRM consists of windings only on its stator, but would not have any windings on rotor thus having very simple construction. The available supply is AC. But AC cannot be directly supplied to SRM when used for air-conditioner application which is employed in this paper. Also power factor in the system needs to be corrected when using a SRM drive. Thus AC supply is fed to power factor correction (PFC) converter which is Buck-Boost converter here in this paper. The output of the PFC converter is fed to SRM through a simple asymmetrical converter. This PFC circuit consists of a simple diode bridge rectifier with Buck-Boost DC-DC converter. A suitable control circuit was proposed to control the input power factor under various loading conditions. This paper gives analysis of SRM drive for air-conditioner application with Buck-Boost converter based PFC circuit. A Matlab/simulink based model is developed and simulation results are presented. Simulation is carried out for different speed response.

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Cheng, Chang, Cheng, Chang, Chung, and Chang. "A Single-Stage LED Streetlight Driver with Soft-Switching and Interleaved PFC Features." Electronics 8, no. 8 (August 18, 2019): 911. http://dx.doi.org/10.3390/electronics8080911.

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This paper presents a single-stage driver with soft-switching and interleaved power-factor correction (PFC) features suitable for light-emitting diode (LED) energy-saving streetlight applications. The proposed LED streetlight driver integrates an interleaved buck-boost PFC converter with coupled inductors and a half-bridge LLC resonant converter into a single-stage power-conversion circuit with reduced voltage stress on the DC-linked capacitor and power switches, and it is suitable for operating at high utility-line voltages. Furthermore, coupled inductors in the interleaved buck-boost PFC converter are operated in discontinuous-conduction mode (DCM) for accomplishing PFC, and the half-bridge LLC resonant converter features zero-voltage switching (ZVS) to reduce switching losses of power switches, and zero-current switching (ZCS) to decrease conduction losses of power diodes. Operational modes and design considerations for the proposed LED streetlight driver are introduced. Finally, a 144 W (36V/4A)-rated LED prototype driver is successfully developed and implemented for supplying a streetlight module and operating with a utility-line input voltage of 220 V. High power factor, low output-voltage ripple factor, low output-current ripple factor, and high efficiency are achieved in the proposed LED streetlight driver.

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Zhang, Hou Sheng. "Design of a Single Phase Power Factor Corrector." Applied Mechanics and Materials 29-32 (August 2010): 2473–78. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.2473.

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This paper designs a novel single phase high power factor rectifier with IR1150 as its main control chip, which main circuit uses boost topology. The fundamental principle of the proposed rectifier is introduced. The IR1150 control IC based on one cycle control is intended for boost converters for power factor correction operating at a fixed frequency in continuous conduction mode (CCM). The use of the IC will make the PFC circuit design easily, the volume of the rectifier small and the efficiency enhancing. The modules of the proposed rectifier such as current loop and over-current protection, voltage loop and over-voltage protection, soft start, and so on, are analyzed and designed respectively in detail. Experimental results of the designed 600W prototype prove that the boost high power factor rectifier designed is rational and reliable, its power factor can reach 0.994.

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Jati, Mentari Putri, Era Purwanto, Bambang Sumantri, Sutedjo Sutedjo, and Dimas Okky Anggriawan. "DESAIN DAN IMPLEMENTASI INTERLEAVED BOOST CONVERTER UNTUK POWER FACTOR CORRECTION MENGGUNAKAN PENGENDALI LOGIKA FUZZY." JURNAL INTEGRASI 12, no. 1 (April 22, 2020): 41–47. http://dx.doi.org/10.30871/ji.v12i1.1430.

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Beberapa tahun terakhir terjadi peningkatan kebutuhan sumber daya tegangan dc. Kebanyakan dari rangkaian elektronika daya pada sumber tegangan dc menggunakan full wave rectifier. Pemasangan nilai kapasitor yang cukup besar sebagai filter pada full wave rectifier dapat menyebabkan bentuk gelombang arus input menjadi tidak sinusoidal (terdistorsi). Perbedaan bentuk gelombang tegangan dan arus input berpengaruh pada besar kecilnya faktor daya. Interleaved Boost Converter (IBC) yang difungsikan sebagai Power Factor Correction (PFC) dengan menggunakan metode pengendali logika fuzzy diterapkan pada sistem untuk mencapai faktor daya mendekati unity. IBC bekerja pada discontinuous conduction mode (DCM). Saat rectifier menyuplai beban yang bersifat resistif maka arus input memiliki bentuk gelombang yang sefasa dengan gelombang tegangan input. Simulasi dan implementasi alat menggunakan beban yang bervariasi. Hasilnya IBC sebagai PFC dapat memperbaiki faktor daya dari 0.67 menjadi 0.93.

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Yue, Yun Tao, Zhi Hong Liu, and Yan Lin. "A Novel Three-Phase Power Factor Correction with Digital Control." Applied Mechanics and Materials 313-314 (March 2013): 365–69. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.365.

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A new three-phase power-factor-correction (PFC) scheme is discussed using two single phase power factor correction circuit parallel connected. Two phase orthonormal voltage is produced by means of a auto transformer from a three phase input,fluctuation of neutral point by three single phase power-factor-correction circuit parallel connected is canceled,coupling interference is reduced among three phases,digitally controlled Power Factor Correction Boost Converters is adapted,input current wave sine with unity power factor suppress the secondary harmonic of input AC side is realized,voltage and low current stresses across each switch are reduced. Simulation and experimental results prove that it can achieve high power factor,low current,good capability of anti-interference and high reliability.

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Denisov, Yuriy, and Serhii Stepenko. "Power Factor Corrector Based on Parallel Quasi- Resonant Pulse Converter with Fast Current Loop." Electrical, Control and Communication Engineering 3, no. 1 (August 1, 2013): 5–11. http://dx.doi.org/10.2478/ecce-2013-0008.

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Abstract The problems, devoted to power quality and particularly power factor correction, are of great importance nowadays. The key requirements, which should be satisfied according to the energy efficiency paradigm, are not limited only by high quality of the output voltage (low total harmonic distortion), but also assume minimal power losses (high efficiency) in the power factor corrector (PFC). It could be satisfied by the use of quasi-resonant pulse converter (QRPC) due to its high efficiency at high switching frequency instead of the classical pulse-width modulated (PWM) boost converter. A dynamic model of QRPC with zero current switching (ZCS) is proposed. This model takes into account the main features of QRPC-ZCS as a link of a PFC closed-loop system (discreteness, sharp changes of parameters over switching period, input voltage impact on the gain). The synthesized model is also valid for conventional parallel pulse converter over an active interval of commutation. The regulator for current loop of PFC was synthesized based on digital filter using proposed model by the criterion of fast acting.

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Gulam, Amer, and Srinivasa Rao. "Estimation of reliability of a interleaving PFC boost converter." Serbian Journal of Electrical Engineering 7, no. 2 (2010): 205–16. http://dx.doi.org/10.2298/sjee1002205g.

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Reliability plays an important role in power supplies. For other electronic equipment, a certain failure mode, at least for a part of the total system, can often be employed without serious (critical) effects. However, for power supply no such condition can be accepted, since very high demands on its reliability must be achieved. At higher power levels, the continuous conduction mode (CCM) boost converter is preferred topology for implementation a front end with PFC. As a result, significant efforts have been made to improve the performance of high boost converter. This paper is one of the efforts for improving the performance of the converter from the reliability point of view. In this paper, interleaving boost power factor correction converter is simulated with single switch in continuous conduction mode (CCM), discontinuous conduction mode (DCM) and critical conduction mode (CRM) under different output power ratings. Results of the converter are explored from reliability point of view.

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Song, Ying Ying, Hong Min Wang, Ling Yu, and Feng Wu Su. "Research and Design of a 100W Adapter Applicable to Laptop." Advanced Materials Research 971-973 (June 2014): 1206–9. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.1206.

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A 100W adaptor with universal voltage range 90-265VAC input and 20V/5A output is designed in this paper .The prototype adopted a new level two-stage high power factor power adapter, the PFC(Power Factor Correction) is a Boost converter operating in discontinuous current mode boundary,and the DC/AC using flyback converters. The experimental results showed that the effectiveness of the proposed approach.

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Zhu, Haoqi, Dongliang Liu, Xu Zhang, and Feng Qu. "Reliability of Boost PFC Converters with Improved EMI Filters." Electronics 7, no. 12 (December 8, 2018): 413. http://dx.doi.org/10.3390/electronics7120413.

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The switching device in a power converter can produce very serious electromagnetic interference (EMI). In order to solve this problem and the associated reliability and stability issues, this article aimed to analyze and model the boost power factor correction (PFC) converter according to the EMI conduction path. The sources of common-mode (CM) and differential-mode (DM) noise of the boost PFC converter were analyzed, and the DM and CM equivalent circuits were deduced. Furthermore, high-frequency modeling of the common-mode inductor was developed using a precise model, and the EMI filter was designed. According to the Class B standard for EMI testing, it is better to restrain the EMI noise in the frequency range (150 kHz to 30 MHz) of the EMI conducted disturbance test. Using this method, a 2.4-kW PFC motor driving supply was designed, and the experimental results validate the analysis.

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Annamalai, Tamizhselvan, and V. Rajini. "A Novel Control Scheme for Power Factor Improvement in Modified Bridgeless Boost Converter." Applied Mechanics and Materials 787 (August 2015): 833–37. http://dx.doi.org/10.4028/www.scientific.net/amm.787.833.

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In Green Energy technologies like wind energy conversion systems and Domestic applications like SMPS and UPS systems, the input voltage amplitude and input frequency are time varying in nature. Fast-Escalating and extremely challenging high efficiency requirements for AC-DC power supplies for notebooks, desktop computers are to minimize the power losses (Conduction losses). In the conventional rectifiers power losses are more and power factor is poor resulting in loss of efficiency. Normally, the bridgeless topologies, also referred to as dual boost power factor correction (PFC) rectifiers, may reduce the conduction losses by reducing the number of semi-conductor components in the line current path. Power supply units have to make the load compatible with the source. The presence of non-linear load results in poor power factor operation and produces harmonic components in the line. So PFC techniques are necessary to meet harmonic regulations and standards such as IEC 61000-3-2 and IEEE 519. A modified bridgeless topology may be used for such applications. A novel switching controller is developed that regulates the input resistance to a desired value. Hence input power factor is unity and also the total harmonic distortion is controlled to a tolerable limit. In the proposed model, the modified bridgeless boost converter is activated in to a pure resistance mode. Finally the performance of the modified bridgeless boost converter is compared with the existing basic bridgeless boost converter.

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Ortiz-Castrillón, José R., Gabriel Eduardo Mejía-Ruíz, Nicolás Muñoz-Galeano, Jesús M. López-Lezama, and Sergio D. Saldarriaga-Zuluaga. "PFC Single-Phase AC/DC Boost Converters: Bridge, Semi-Bridgeless, and Bridgeless Topologies." Applied Sciences 11, no. 16 (August 20, 2021): 7651. http://dx.doi.org/10.3390/app11167651.

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Power Factor Correction (PFC) single-phase AC/DC converters are used in several power electronics applications as full wave control rectifiers improving power quality and providing high standards of efficiency. Many papers dealing with the description or use of such topologies have been published in recent years; however, a review that describes and organizes their specific details has not been reported in the technical literature. Therefore, this paper presents an extensive review of PFC single-phase AC/DC converters operating with the Boost converter topology for low and medium voltage as well as and power appliances. A categorization of bridge, semi-bridgeless, and bridgeless, in accordance with the construction characteristics, was carried out in order to unify the technical terminology. Benefits and disadvantages are described and analyzed in detail. Furthermore, a comparison performance in terms of PFC, Total Harmonic Distortion (THD), power capacity, electromagnetic compatibility (EMC), number of elements, and efficiency is included.

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Bastari, Winarno Fadjar, and John Geral Mesah. "DESIGN AND DEVELOPMENT OF INTERLEAVED BOOST CONVERTER AS A POWER QUALITY IMPROVEMENT IN ONE PHASE ROTARY WITH INDUCTIVE AND RESISTIVE LOADS." BEST : Journal of Applied Electrical, Science, & Technology 1, no. 1 (April 1, 2019): 28–31. http://dx.doi.org/10.36456/best.vol1.no1.2021.

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The unidirectional voltage source is obtained through an uncontrolled 220 Volt single phase full wave rectifier circuit. Installation of large amount capacitors as a filter affect input waveform. Due to the harmonics distort sinusoidal input voltage from the PLN grid. The difference in voltage waveforms and input currents that occur can affect the value of the resulting factor. Based on this problem, a study was made on theimprovement of power factors using a series of Interleaved Boost Converter which functioned as a series of Power Factor Correction (PFC) and voltage regulators with a setting method using Fuzzy logic. This Interleaved Boost Converter circuit is made to work in the condition of the Discontinues Conduction Mode (DCM) so that any load that is supplied to the circuit will make the system resistive. So, it is expected that thevoltage and input current waveforms will produce a factor value close to the unity value. The results of this study are the Interleaved Boost Converter series that can be used as a Power Factor Correction circuit and also as a voltage regulator. It improves power factor from 0.9 to 0.93.

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Raman, Rahul, Debanga Jyoti Baruah, Saurav Dey, Padmini Neog, and Kritika Taniya Saharia. "Implementation of Boost PFC in the Induction Heating System for EMI–RFI Suppression." HighTech and Innovation Journal 2, no. 2 (June 1, 2021): 120–30. http://dx.doi.org/10.28991/hij-2021-02-02-05.

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The present work deals with the design and performance analysis of high frequency resonant inverter based Induction Heating (IH) System employing Boost Power Factor Correction (PFC) technique to overcome the problems due to EMI and RFI. Most of the existing techniques use passive filters for harmonics attenuation that fails to meet the present day requirement because of drawbacks like considerably high THD, poor dynamic performance, etc. This paper presents a new control approach for boost PFC based on inner and outer loops to eliminate the problems due to harmonics in the IH system. The equivalent circuit parameter model of the IH system has been used to analyze the presence of harmonics and the incorporation of boost PFC at the input of the system shows its elimination as per the stringent EMI-RFI regulations. Moreover, attention has been paid off to the design algorithm of the boost PFC and a detailed mathematical analysis has been done to outline an approach for its parameter selection. A comparative analysis of the IH system with and without the incorporation of the boost PFC has been done in terms of the THD in the input current waveform. The findings of the present work show that the incorporation of Boost PFC eliminates the harmonics in the IH system in a better manner than the existing techniques. Doi: 10.28991/HIJ-2021-02-02-05 Full Text: PDF

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SHI, LING-FENG, HUI-LI GUAN, QIN-QIN LI, and XIN-QUAN LAI. "A NOVEL CRM PFC CONTROL METHOD FOR REDUCING INDUCTOR." Journal of Circuits, Systems and Computers 23, no. 03 (March 2014): 1450038. http://dx.doi.org/10.1142/s0218126614500388.

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A novel control method for the critical conduction mode (CRM) power factor correction (PFC) converter is presented, which reduces the size of the boost inductor in the system with wide input-voltage range and improves the efficiency of the system with low input voltage. By introducing the following boost circuit, the output voltage in the application circuit varies with the input root mean square (RMS) voltage to reduce the demand for the large size of the inductor and the efficiency of the system keeps high under the low input voltage. A novel CRM PFC control system with smaller size inductor and higher efficiency is achieved by applied the following boost method to the core control circuits. Experiment results show that the inductance value of the boost inductor is 430 μH using the presented PFC control system and 700 μH using the traditional PFC control system when the input voltage varies from 85 V to 265 V. The novel control method decreases the inductor's value at 38.2%, and the efficiency of the system improves at 1.62% under the input voltage of 85 V.

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Hwu, Kuo-Ing, Yu-Kun Tai, and Yu-Ping He. "Bridgeless Buck-Boost PFC Rectifier with Positive Output Voltage." Applied Sciences 9, no. 17 (August 23, 2019): 3483. http://dx.doi.org/10.3390/app9173483.

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A bridgeless buck-boost power-factor-correction (PFC) rectifier with positive output voltage is proposed herein. This PFC rectifier operates in the discontinuous conduction mode (DCM). Owing to the DCM, a good performance on PF is easily achieved as well as no reverse recovery currents being generated from the diodes. By means of output voltage sensing along with the traditional voltage-follower control, a proper control force is created to drive the switches. By doing so, not only the output voltage is stably controlled at a given value, but also the input current tracks the input voltage as tightly as possible. In addition, the accompanying harmonic distortion meets the requirements of the IEC6100-3-2 Class C harmonics standard, and accordingly, the proposed rectifier is suitable for the AC-DC LED driver. Finally, via mathematical deductions and experimental results, the effectiveness of the proposed bridgeless buck-boost PFC rectifier is verified.

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WINDER, STEVE. "LIGHT EMITTING DIODE DRIVERS AND CONTROL." International Journal of High Speed Electronics and Systems 20, no. 02 (June 2011): 267–86. http://dx.doi.org/10.1142/s0129156411006593.

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This paper outlines the various driving and control techniques for Light Emitting Diodes (LEDs). LEDs should be driven from a constant current source. High power LEDs are usually driven from a switching regulator, for reasons of efficiency. The types of drivers described include Buck (step-down), Boost (step-up) and Buck-Boost (step-up or step-down). Isolated drivers and Power Factor Correction (PFC) circuits are also described. This brief paper can only describe the basic outline of these circuits, but this should be sufficient to allow the basic principles to be understood.

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Choi, Won Suk, Sung Mo Young, Richard L. Woodin, A. W. Witt, and J. Shovlin. "A High Performance CCM PFC Circuit Using a SiC Schottky Diode and a Si SuperFET^TM Switch." Materials Science Forum 600-603 (September 2008): 1235–38. http://dx.doi.org/10.4028/www.scientific.net/msf.600-603.1235.

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SuperFETTM MOSFETs and silicon carbide (SiC) Schottky diodes are applied to continuous conduction mode active power factor correction pre-regulators. SuperFETTM MOSFETs can reduce power losses dramatically with their extremely low RDS(ON) and fast switching. The SiC Schottky diode has virtually zero reverse recovery current and high thermal conductivity, and is close to an ideal diode for a CCM PFC circuit. Due to these outstanding switching characteristics, frequency can be increased. In this paper, the SiC Schottky diode’s and SuperFETTM MOSFET’s performance have been verified in a CCM PFC boost converter. These products can reduce the total power losses and enhance the system efficiency.

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V Divyasri Sudharani and K Sabarinath. "An Improved Power Factor Correction with Control of Leakage Inductance." International Journal for Modern Trends in Science and Technology 6, no. 10 (November 24, 2020): 12–19. http://dx.doi.org/10.46501/ijmtst061003.

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Nowadays the use of electronic equipment finds a progressive development in the modern world. Hence it becomes a mandate to check whether the harmonic content of line current of any electronic device which is connected to the ac supply meets the appropriate standards. This demand is satisfied by implementing the Power Factor Correction (PFC) circuit in order to make the input current to be in sinusoidal in nature and in-phase with the input voltage. Numerous solutions are available to make the line current almost sinusoidal. This paper describes an isolated power factor corrected power supply that utilizes the leakage inductance of the isolation transformer to provide boost inductor functionality. The bulk capacitor is in the isolated part of the power supply allowing for controlled startup without dedicated surge limiting components. A control method based on switch timing and input/output voltage measurements is developed to jointly achieve voltage regulation and input power factor control.

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Jayahar, Damodaran, R. Ranihemamalini, and K. Rathnakannan. "Design and Implementation of Single Phase AC-DC Buck-Boost Converter for Power Factor Correction and Harmonic Elimination." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (September 1, 2016): 1004. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp1004-1011.

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This paper discusses the Power Factor Correction (PFC) for single phase ACDC Buck-Boost Converter (BBC) operated in Continuous Conduction Mode (CCM) using inductor average current mode control. The proposed control technique employs Proportional-Integral (PI) controller in the outer voltage loop and the Inductor Average Current Mode Control (IACMC) in the inner current loop for PFC BBC. The IACMC has advantages such as robustness when there are large variations in line voltage and output load. The PI controller is developed by using state space average model of BBC. The simulation of the proposed system with its control circuit is implemented in MatLab/Simulink. The simulation results show a nearly unity power factor can be attained and there is almost no change in power factor when the line frequency is at various ranges. Experimental results are provided to show its validity and feasibility. Keyword

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DAI, DONG, CHI K. TSE, BO ZHANG, and XIKUI MA. "HOPF BIFURCATION AS AN INTERMEDIATE-SCALE INSTABILITY IN SINGLE-STAGE POWER-FACTOR-CORRECTION POWER SUPPLIES: ANALYSIS, SIMULATIONS AND EXPERIMENTAL VERIFICATION." International Journal of Bifurcation and Chaos 18, no. 07 (July 2008): 2095–109. http://dx.doi.org/10.1142/s0218127408021592.

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This paper reports intermediate-scale instability in a single-stage power-factor-correction (PFC) power supply that employs a cascade configuration of a boost stage operating in discontinuous conduction mode (DCM) and a forward stage operating in continuous conduction mode (CCM). The two stages combine into a single stage by sharing one main switch and one control loop to achieve input PFC and tight output regulation. The main results are given by "exact" cycle-by-cycle circuit simulations. The effect of the intermediate-scale instability on the attainable power factor is illustrated in terms of total harmonic distortion (THD) which is found by taking the Fast Fourier Transform (FFT) of the input current. The intermediate-scale instability usually manifests itself as local oscillations within a line cycle. Based on the stability analysis of a buck converter operating in CCM, the underlying mechanism of such instability can be attributed to the Hopf bifurcation that occurred in CCM forward stage. Finally, experimental results are presented for verification purposes.

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Mazumder, Sudip K., and Ali H. Nayfeh. "A New Approach to the Stability Analysis of Boost Power-Factor-Correction Circuits." Journal of Vibration and Control 9, no. 7 (July 2003): 749–73. http://dx.doi.org/10.1177/1077546303009007002.

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We analyze the stability of a boost power-factor-correction (PFC) circuit using a hybrid model. We consider two multi-loop controllers to control the power stage. For each closed-loop system, we treat two separate cases: one for which the switching frequency is approaching infinity and the other for which it is finite but large. Unlike all previous analyses, the analysis in this paper investigates the stability of the converter in the saturated and unsaturated regions of operation. Using concepts of discontinuous systems, we show that the global existence of a smooth hypersurface for the boost PFC circuit is not possible. Subsequently, we develop conditions for the local existence of each of the closed-loop systems using a Lyapunov function. In other words, we derive the conditions for which a trajectory will reach a smooth hypersurface. If the trajectories do not reach the sliding surface, then the system saturates. As such, the stability of the period-one orbit is lost. Using the conditions for existence and the concept of equivalent control, we show why, for the second closed-loop system, the onset of the fast-scale instability occurs when the inductor current approaches zero. For this system, we show that the onset of the fast-scale instability near zero-inductor current occurs for a lower line voltage. Besides, when the peak of the line voltage approaches the bus voltage, the fast-scale instability may occur not only at the peak but also when the inductor current approaches zero. We develop a condition which ensures that the saturated region does not have any stable orbits. As such, a solution that leaves the sliding surface (if existence fails) cannot stabilize in the saturated region. Finally, we extend the analysis to the case in which the converter operates with a finite but large switching frequency. As such, the system has two fundamental frequencies: the switching and line frequencies. Hence, the dynamics of the system evolve on a torus. We show two different approaches to obtaining a solution for the closed-loop system. For the second closed-loop system, using the controller gain for the current loop as a bifurcation parameter, we show (using a Poincaré map) the mechanism of the torus breakdown. If the mechanism of the torus breakdown is known, then, depending on the post-instability dynamics, a designer can optimize the design of the closed-loop converter.

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Cho, Kwang-Seung, Byoung-Kuk Lee, and Jong-Soo Kim. "CRM PFC Converter with New Valley Detection Method for Improving Power System Quality." Electronics 9, no. 1 (December 27, 2019): 38. http://dx.doi.org/10.3390/electronics9010038.

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High efficiency and the power factor of power converters, are very important factors which can improve power system quality. In particular, research on improving low efficiency and the power factor at light-load conditions is essential. A boost power factor correction (PFC) is most commonly used in home appliances, with several operations being at light-loads; the critical conduction mode (CRM) control, fixed ON-time control, and valley detection technique are mainly applied to PFC control. However, these control schemes have the following problems: (1) low efficiency, due to sudden increase in switching frequency at light-loads; and (2) low power factor, due to switching ON-time limitation. This paper presents a new valley detection method that can actively extend the fixed ON-time to overcome these problems. Furthermore, a new valley point detection circuit and an ON-time extension signal generation circuit are proposed and described in detail. The superiority of the proposed method is demonstrated via comparison with two existing CRM PFC control methods, namely fixed ON-time (conventional#1) and existing valley detection (conventional#2) methods. Experimental results at 20% load demonstrate that the proposed method shows an efficiency improvement of 2.1%, compared with the fixed ON-time strategy; and a power factor improvement of 34.9%, compared with the existing valley detection strategy.

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Wu, Sen-Tung, Fu-Yuan Chen, Min-Chu Chien, Jian-Min Wang, and Yan-Ying Su. "A Hybrid Control Scheme with Fast Transient and Low Harmonic for Boost PFC Converter." Electronics 10, no. 15 (July 31, 2021): 1848. http://dx.doi.org/10.3390/electronics10151848.

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In this study, a new control strategy was proposed to improve transient response and the input current harmonic distortion of power factor correction (PFC) regulators operating in an average current mode. The proposed technique required only two additional gain selectors and a peak detector circuit on the feedforward voltage loop and output voltage feedback loops. It provided a direct reading for the average voltage value of feedback control loops and the peak voltage of feedforward control loops, producing PFC boost regulators with fast dynamic responses and low-input current harmonic distortion. The use of digital potentiometers for directly changing the gain of control loops did not require any divider or squarer to reduce the complexity of control circuits. The operating principles and control strategies of 300 W boost PFC with the new control strategy are presented with detailed analysis and discussion. The experimental results were satisfactory.

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Okilly, Ahmed H., Hojin Jeong, and Jeihoon Baek. "Optimal IP Current Controller Design Based on Small Signal Stability for THD Reduction of a High-Power-Density PFC Boost Converter." Applied Sciences 11, no. 2 (January 7, 2021): 539. http://dx.doi.org/10.3390/app11020539.

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This paper presents an optimal design for the inner current-control loop of the continuous current conduction mode (CCM) power factor correction (PFC) stage, which can be used as the front stage of the two-stage AC/DC telecom power supply. The conventional single-phase CCM-PFC boost converter is implemented with proportional–integral (PI) controllers in both the voltage and current-control loops to regulate the output DC voltage to the specified value and to ensure the input current follows the input voltage, which offers a converter with a high-power factor (PF) and low current total harmonic distortion (THD). However, due to the slow dynamic response of the PI controller at the zero-crossing point of the input supply current, the input current cannot fully follow the input voltage, which leads to high THD. In this paper, we investigate a digitally controlled PFC converter with an optimally designed inner current-control loop using a doubly-fed control loops integral-proportional (IP) controller to reduce the THD and to offer an input current with a unity PF. For the economic design of a digitally controlled PFC converter, two isolated AC and DC voltage sensors are designed for interfacing with the microcontroller unit (MCU). PSIM software as well as experimental prototype was used to test the converter performance using the proposed designed current controllers and isolated voltage sensors. We achieved a high-power-density, digitally controlled, telecom PFC stage with a power factor more than 99% and THD of about 5.50%.

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Okilly, Ahmed H., Hojin Jeong, and Jeihoon Baek. "Optimal IP Current Controller Design Based on Small Signal Stability for THD Reduction of a High-Power-Density PFC Boost Converter." Applied Sciences 11, no. 2 (January 7, 2021): 539. http://dx.doi.org/10.3390/app11020539.

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This paper presents an optimal design for the inner current-control loop of the continuous current conduction mode (CCM) power factor correction (PFC) stage, which can be used as the front stage of the two-stage AC/DC telecom power supply. The conventional single-phase CCM-PFC boost converter is implemented with proportional–integral (PI) controllers in both the voltage and current-control loops to regulate the output DC voltage to the specified value and to ensure the input current follows the input voltage, which offers a converter with a high-power factor (PF) and low current total harmonic distortion (THD). However, due to the slow dynamic response of the PI controller at the zero-crossing point of the input supply current, the input current cannot fully follow the input voltage, which leads to high THD. In this paper, we investigate a digitally controlled PFC converter with an optimally designed inner current-control loop using a doubly-fed control loops integral-proportional (IP) controller to reduce the THD and to offer an input current with a unity PF. For the economic design of a digitally controlled PFC converter, two isolated AC and DC voltage sensors are designed for interfacing with the microcontroller unit (MCU). PSIM software as well as experimental prototype was used to test the converter performance using the proposed designed current controllers and isolated voltage sensors. We achieved a high-power-density, digitally controlled, telecom PFC stage with a power factor more than 99% and THD of about 5.50%.

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Aiswariya, S., and R. Dhanasekaran. "An AC/DC PFC Converter with Active Soft Switching Technique." International Journal of Energy Optimization and Engineering 3, no. 3 (July 2014): 101–21. http://dx.doi.org/10.4018/ijeoe.2014070107.

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This paper proposes an AC-DC converter with the application of active type soft switching techniques. Boost converter with active snubber is used to achieve power factor correction. Boost converter main switch uses Zero Voltage Transition switching for turn on and Zero Current Transition switching for turn off. The active snubber auxillary switch uses Zero Current Switching for both turn on and turn off. Since all the switches of the proposed circuit are soft switched, overall component stress has been greatly reduced and the output DC voltage is expected to have low ripples. A small amount of auxillary switch current is made to flow to the output side by the help of coupling inductor. The proposed circuit is simulated using MATLAB Simulink. All the related waveforms are shown for the reference. The power factor is measured as 0.99 showing that the input current and input voltage is in phase with each other. The PFC circuit has very less number of components with smaller size and can be controlled easily at a wide line and load range.

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Barbosa, Lúcio dos Reis. "A Zero-Voltage-Transition Interleaved Boost Converter and Its Application to PFC." Advances in Power Electronics 2011 (December 4, 2011): 1–10. http://dx.doi.org/10.1155/2011/925618.

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An efficient power factor correction converter is presented. Two boost-topology switching cells are interleaved to minimize EMI while operating at lower switching frequency and soft switching to minimize losses. The result is a system with high conversion efficiency, able to operate in a pulse-width-modulation (PWM) way. Seven transition states of the ZVT converter in one switching period are described. In order to illustrate the operational principle key, implementation details, including simulations, are described. The validity of this converter is guaranteed by the obtained results.

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Ramesh, V., and Y. Kusuma Latha. "An Interleaved Boost Converter Based PFC Control Strategy for BLDC motor." International Journal of Electrical and Computer Engineering (IJECE) 5, no. 5 (October 1, 2015): 957. http://dx.doi.org/10.11591/ijece.v5i5.pp957-966.

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In this paper, interleaved power factor correction (PFC) boost converter based control strategy for BLDC motor has been Proposed. The converter exhibits the characteristics of voltage doublers for duty greater than 0.5. The switching losses and losses during reverse recovery operation are considerably reduced in this proposed topology. This is due reduction in switching voltages due to voltage doubler mode. The proposed topology has high efficiency compared to conventional counterpart due to slight increase in conduction losses. In this paper, the proposed PFC control Strategy has been applied to a six switch and four switch VSI fed BLDC Motor drive for effective torque ripple minimization. A comparison is also made between the six switch and Four Switch VSI fed PMBLDC Motor drive.

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González-Castaño, Catalina, Carlos Restrepo, Fredy Sanz, Andrii Chub, and Roberto Giral. "DC Voltage Sensorless Predictive Control of a High-Efficiency PFC Single-Phase Rectifier Based on the Versatile Buck-Boost Converter." Sensors 21, no. 15 (July 28, 2021): 5107. http://dx.doi.org/10.3390/s21155107.

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Many electronic power distribution systems have strong needs for highly efficient AC-DC conversion that can be satisfied by using a buck-boost converter at the core of the power factor correction (PFC) stage. These converters can regulate the input voltage in a wide range with reduced efforts compared to other solutions. As a result, buck-boost converters could potentially improve the efficiency in applications requiring DC voltages lower than the peak grid voltage. This paper compares SEPIC, noninverting, and versatile buck-boost converters as PFC single-phase rectifiers. The converters are designed for an output voltage of 200 V and an rms input voltage of 220 V at 3.2 kW. The PFC uses an inner discrete-time predictive current control loop with an output voltage regulator based on a sensorless strategy. A PLECS thermal simulation is performed to obtain the power conversion efficiency results for the buck-boost converters considered. Thermal simulations show that the versatile buck-boost (VBB) converter, currently unexplored for this application, can provide higher power conversion efficiency than SEPIC and non-inverting buck-boost converters. Finally, a hardware-in-the-loop (HIL) real-time simulation for the VBB converter is performed using a PLECS RT Box 1 device. At the same time, the proposed controller is built and then flashed to a low-cost digital signal controller (DSC), which corresponds to the Texas Instruments LAUNCHXL-F28069M evaluation board. The HIL real-time results verify the correctness of the theoretical analysis and the effectiveness of the proposed architecture to operate with high power conversion efficiency and to regulate the DC output voltage without sensing it while the sinusoidal input current is perfectly in-phase with the grid voltage.

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Taiqiang, Cao, Chen Zhangyong, Wang Jun, Sun Zhang, Luo Qian, and Zhang Fei. "Study on a Novel High-Efficiency Bridgeless PFC Converter." Journal of Applied Mathematics 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/514281.

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In order to implement a high-efficiency bridgeless power factor correction converter, a new topology and operation principles of continuous conduction mode (CCM) and DC steady-state character of the converter are analyzed, which show that the converter not only has bipolar-gain characteristic but also has the same characteristic as the traditional Boost converter, while the voltage transfer ratio is not related with the resonant branch parameters and switching frequency. Based on the above topology, a novel bridgeless Bipolar-Gain Pseudo-Boost PFC converter is proposed. With this converter, the diode rectifier bridge of traditional AC-DC converter is eliminated, and zero-current switching of fast recovery diode is achieved. Thus, the efficiency is improved. Next, we also propose the one-cycle control policy of this converter. Finally, experiments are provided to verify the accuracy and feasibility of the proposed converter.

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Journal articles on the topic 'Power Factor Correction (PFC) boost'

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