Journal articles: 'Power Factor Correction (PFC)'

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Reddy, N. Chaitanya, J. Akhil Reddy, EVS Rahul Rajkumar, and M. Ravikanth. "Power Factor Correction Using a Series Active Filter." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (June 30, 2022): 1543–48. http://dx.doi.org/10.22214/ijraset.2022.44098.

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Abstract: Power factor correction (PFC) for single-phase diode rectifiers utilising a series active filter is demonstrated in this project at a minimal cost. When compared to the typical PFC, the suggested PFC has reduced power device ratings requirements, which results in cheaper costs and improved efficiency. It can also eliminate the requirement for a large inductor in the typical PFC, making it more compact. This study examines the proposed PFC's topology, operating principle, and application concerns. The control approach and simulation results are presented in detail. Prototypes of 1-kW are made and the experimental findings are shown to verify the theoretical analysis. Index Terms: Harmonic resonance, hybrid active filter, industrial power system.

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Stojce Ilcev, Dimov. "Analysis of power factor corrections for obtaining improved power factors of switching mode power supply." International Journal of Engineering & Technology 9, no. 3 (September 30, 2020): 826. http://dx.doi.org/10.14419/ijet.v9i3.31086.

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This article discusses such an important issue as the power factor of Switching Mode Power Supply (SMPS) and its improvement through Power Factor Correction (PFC). The power factor shows how effectively uses the consumption of electric energy by certain loads connected to the power distribution system with Alternative Current (AC), which is very critical for the electricity-producing industry. The number of power factors is a dimensionless value that can vary from -1 to 1. Thus, in an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of transferring useful power, which may cause overloading of the power grid and lead to over-expenditure of electricity. Otherwise, designing power factor correction (PFC) into modern switched-mode power supplies (SMPS) has evolved over the past few years due to the introduction of many new controller integrated circuits (IC). Today, it is possible to design a variety of PFC circuits with different modes of operation, each with its own set of challenges. As the number of choices has increased, so has the complexity of making the choice and then executing the new design. In this article, the design considerations and details of operation for the most popular approaches are provided.

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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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Sun, Bao Wen, and Yun Xi Wu. "Single-Stage Power Factor Correction (PFC) Converter Design." Applied Mechanics and Materials 687-691 (November 2014): 3383–86. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3383.

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A single-stage PFC converter was introduced in this paper, then the converter EMI filters, converters inductors, high-frequency transformers and power components were designed and chosen, proven to good effect.

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Krachangchaeng, Napat, and Sakorn Po-Ngam. "The Three-Level Sine-Wave Inverter with Power Factor Correction (PFC)." Applied Mechanics and Materials 781 (August 2015): 402–5. http://dx.doi.org/10.4028/www.scientific.net/amm.781.402.

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Nowadays, the uninterruptible power supply (UPS) is important in reliability for electric device. The UPS need high quality electricity. Therefore, the simulation of the three-level sine-wave inverter with power factor correction (PFC) is proposed in this paper. Moreover, the circuit’s guidelines of the active PFC controller in the active PFC and the sinusoidal output voltage are also presented. Validity of the proposed the three-level sine-wave inverter with the active PFC is confirmed by simulation. The simulation results show the very small current harmonics, the input power factor most nearly unity and constant output voltage when the suddenly step-load changed.

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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, 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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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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Sasikala, K., and R. Krishna Kumar. "An Improved Power Factor Correction for Interleaved Flyback Switched Mode Power Supply." International Journal of Engineering & Technology 7, no. 3.27 (August 15, 2018): 166. http://dx.doi.org/10.14419/ijet.v7i3.27.17752.

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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 deals with the inclusion of passive PFC in the interleaved Fly back SMPS to improve the power factor. The proposed work also examines the reduction of current ripple at the output using interleaved converter.

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Udhayakumar, G., Rashmi M R, K. Patel, G. P. Ramesh, and Suresh A. "Supply Power Factor Improvement in Ozone Generator System Using Active Power Factor Correction Converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 2 (June 1, 2015): 326. http://dx.doi.org/10.11591/ijpeds.v6.i2.pp326-336.

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<p>Artificial Ozone Generating system needs High Voltage, High Frequency supply. The Ozonator distorts the supply currents and henceforth affect the supply power factor. This paper presents the performance comparison of PWM inverter to Power Factor Corrected (PFC) converter with PWM inverter based High-voltage High-frequency power supply for ozone generator system. The conventional inverter has front end bridge rectifier with smoothing capacitor. It draws non-sinusoidal current from ac mains; as a result input supply has more harmonics and poor power factor. Hence, there is a continuous need for power factor improvement and reduction of line current harmonics. The proposed system has active power factor correction converter which is used to achieve sinusoidal current and improve the supply power factor. The active PFC converter with PWM inverter fed ozone generator generates more ozone output compared to the conventional inverter. Thus the proposed system has less current harmonics and better input power factor compared to the conventional system. The performance of the both inverters are compared and analyzed with the help of simulation results presented in this paper.</p>

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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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Coman, Ciprian Mihai, Adriana Florescu, and Constantin Daniel Oancea. "Improving the Efficiency and Sustainability of Power Systems Using Distributed Power Factor Correction Methods." Sustainability 12, no. 8 (April 13, 2020): 3134. http://dx.doi.org/10.3390/su12083134.

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For the equipment connected to the three-phase or single-phase grid, the power factor represents an efficiency measure for the usage of electrical energy. The power factor improvement through correction methods reduces the load on the transformers and power conductors, leading to a reduction of losses in the mains power supply and a sustainable grid system. The implications at the financial level are also important. An example of load that generates a small power factor is represented by a motor without mechanical load or having a small mechanical load. Given the power factor correction (PFC), the costs are reduced through the elimination of penalties, applying only in the common coupling point (CCP). The advantages of using equipment for the power factor correction are related also to their long operation duration and the easiness of their installation. The device presented in this article takes advantage of the advances in information and communication technology (ICT) to create a new approach for telemetry and remote configuration of a PFC. This approach has flexibility and versatility, such that it can be adapted to many loads, easily changing the capacitance steps and settings of the power factor correction device.

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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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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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D, Saravanan, and Gopinath M. "A Novel Power Factor Correction Modified Bridge Less-CUK Converter for LED Lamp Applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (September 1, 2016): 880. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp880-891.

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In recent decades, several research works have been focused on the efficient Power Factor Correction (PFC) converter design in to meet the power supply efficiency. Conventional PFC cuk converter widely uses the full bridge rectifier which had resulted in overall increase of converter losses and inefficiency. This paper is intended to develop a novel PFC Bridgeless cuk converter for LED lamp applications. In this work, the limitations of the conventional PFC Cuk converter are resolved. The major contributions of the proposed work include the minimization in the number of conduction devices and minimization of the power utility devices which in turn resulted in minimal losses and better efficiency. Moreover, the proposed converter works in DCM which requires only one voltage sensor which results in reduced cost. The proposed Modified BL Cuk converter (MBL-CUK) for LED lamp is simulated in MATLAB and the corresponding results show the better power quality indices such as power factor and Total Harmonic Distortion.

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Gunti, Kishor Babu, and Sree Krishnarayalu Movva. "Singular Perturbation Method Applied to Power Factor Correction Converter Application." WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL 16 (July 23, 2021): 396–403. http://dx.doi.org/10.37394/23203.2021.16.35.

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A linear discrete stable control system is considered. The Power Factor Correction (PFC) converter to allow independent control of current and voltage. It converter are fast and slow states to inheres sty present small parameters inductor and capacitor its computes stiffness and to include switching ripple effects. As an alternative a Singular Perturbation Method (SPM) is presented Initial Value Problem (IVP) and Boundary Value Problem (BVP). It is applied to two state switching power converters to provide rigorous justification of the time scale separation. It is modeled as a one parameter singularly perturbed system. SPM consists of an outer series solution and one boundary layer correction (BLC) solution. A boundary layer correction is required to recover the initial conditions lost in the process of degeneration and to improve the solution. SPM is carried out up to second-order approximate solution for the PFC converter model for IVP and BVP. The results are compared with the exact solution (between with and without parameters). The results substantiate the application.

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Ravivarman, G., and S. Poorani. "A single stage ZVS Power factor correction converter." International Journal of Engineering & Technology 7, no. 2.24 (April 25, 2018): 208. http://dx.doi.org/10.14419/ijet.v7i2.24.12033.

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The aspects with respect to control strategies power factor correction (PFC) converter are examined. Research effort in focus to minimized switching stress for improving better efficiency in power rating is 500W/48V, is achieved by using soft switching. In this suggested converter and switching scheme ZVS voltage stress is shaped. Added to this power loss is minimized. A 500W/48V prototype is proposed to serve the concept proof, which exhibits 92.69% peak efficiency at low input line voltage.

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Chaladying, Saran, Pana Dusitakorn, and Nattachote Rugthaichareoncheep. "Resonance Impact on Power Factor Correction System in Power System with Harmonic Distortion." Applied Mechanics and Materials 781 (August 2015): 254–57. http://dx.doi.org/10.4028/www.scientific.net/amm.781.254.

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This paper presents the resonance impact on power factor correction system (PFC system) in power system with harmonic distortion. The main purpose is to show harmonic current amplification that generated by the parallel resonance phenomenon in power system and problem solution. The power system model for analysis consist of the harmonic current source and PFC system. These devices are established by MATHLAB/Simulink. In simulation, the variable speed drive, which is DC drive, instead to the harmonic current source in power system that use capacitor to improve power factor of system. The problem solution, the series reactor, which is detune filter, is used to correct parallel resonance problem, by connecting capacitor with the series reactor, which is detune filter. The result of simulation, detune filter is able to avoid the parallel resonance phenomenon and partially reduce harmonic current that flowing to capacitor, however the series reactor, which is detune filter, is unable to reduce harmonic current of the harmonic current source.

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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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Zhang, Yong, Hui Teng, Tie Jun Ma, Hong Xia Xie, and Peng Wan. "3-Phase 4-Wire VIENNA Rectifier Used in the Resistance Spot Welding Inverter Power Supply." Applied Mechanics and Materials 432 (September 2013): 263–68. http://dx.doi.org/10.4028/www.scientific.net/amm.432.263.

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Considering the distortion factor, the large power resistance spot welding (RSW) inverter power supplys actual power factor (PF) is very low. In this paper, the 3-phase 4-wire three-phase/switch/level (VIENNA) rectifier is proposed to realize the power factors correction (PFC). Firstly, an equivalent load model of the back-stage in the RSW inverter power supply is established, thus the real load of this PFC circuit can be archived. Then, the 3-phase 4-wire VIENNA rectifier PFC circuit is analyzed with the simulation software of Pspice. Finally, an experimental circuit power of 3kW is designed. Experimental results show that the PF of this system can be increased to 98.6% that demonstrates the practicability of the 3-phase 4-wire VIENNA rectifier in RSW inverter power supply.

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Ribeiro, Hugo, and Beatriz Borges. "Techniques to obtain single-stage power supplies with power factor correction (PFC)." International Journal of Electronics 98, no. 4 (April 2011): 487–504. http://dx.doi.org/10.1080/00207217.2010.538897.

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Singh, Bhim, and Vashist Bist. "Power factor correction (PFC) converters feeding brushless DC motor drive." International Journal of Engineering, Science and Technology 7, no. 3 (February 5, 2016): 65. http://dx.doi.org/10.4314/ijest.v7i3.9s.

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Duong Minh, Quan. "ENHANCING VOLTAGE STABILITY OF PHOTOVOLTAIC ENERGY CONVERTER USING POWER FACTOR CORRECTION TECHNIQUE." Journal of Military Science and Technology, no. 74 (August 26, 2021): 3–9. http://dx.doi.org/10.54939/1859-1043.j.mst.74.2021.3-9.

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Currently, the high penetration of photovoltaic energy (PV) in the power system raises many challenges due to the instability of this type of energy. To overcome this problem, this study analyzes the Power Factor Correction (PFC) control technique through the existing power grid to support converters integrated with the MPPT algorithm. Then, an experimental circuit model integrating two control methods will be fabricated and evaluated under the actual operating conditions. The experimental process shows that in the case of PFC support, output voltage response is more stable than the case that only uses the simple MPPT algorithm.

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Su, Chi-Feng, Chih-Tung Liu, Jong-Shinn Wu, and Ming-Tzu Ho. "Development of a High-Power-Factor Power Supply for an Atmospheric-Pressure Plasma Jet." Electronics 10, no. 17 (August 31, 2021): 2119. http://dx.doi.org/10.3390/electronics10172119.

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This paper presents the design and implementation of a miniaturized high-voltage power supply with power factor correction (PFC) for atmospheric-pressure plasma jet (APPJ) applications. The sinusoidal output frequency and voltage of the power supply can be controlled independently from 16 to 24 kHz and from 1 to 10 kVpeak, respectively. A helium APPJ load is used to assess the performance of the developed power supply. It is shown that the developed high-voltage power supply operates effectively, and the designed PFC converter improves the input current distortion of the power supply. Not only the power factor of the power supply is increased from 0.41 to 0.95, but it also provides a low-ripple DC voltage, which reduces the high-voltage ripple of the output from 730 to 50 Vp-p. In this paper, the proposed design integrates the PFC converter into the high-voltage power supply so that the developed power supply has better electrical characteristics and the overall power supply can be significantly miniaturized.

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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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Akpojedje, France O. "Modelling of Power Factor Correction as Contingency to Energy Saving in Nigeria Power Systems: A Case Study." Advances in Multidisciplinary and scientific Research Journal Publication 1 (July 30, 2022): 39–60. http://dx.doi.org/10.22624/aims/rebk2022-p5.

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ABSTRACT The Nigeria power system has been undergoing several policy changes over the years in order to improve the power system and also to ensure increase in capacity and efficient electricity supply to Nigerians. However, these laudable goals are yet to be achieved and the small megawatts that Nigeria power sector generates are wasted by high reactive loads in many industrial sectors today by operating on low power factor. The aim of this research paper is to demonstrate the impact of power factor correction on energy saving in Nigeria power system. It was realised by installing power factor correction device (PFCD) in some selected consumer’s premises and field measurement was carried out before and after the PFCD installation. Data were recorded during the operating hours of the selected factory site. Conclusively, it was shown that the power factor of the selected factory site was improved from 0.7 to 0.97, thereby increasing the kVA capacity of the electricity supplying transformer by 27.84%. The analyses of the results showed that the PFC device have the ability to reduce the system losses, improve the capacity and the efficiency of the system without installing additional cables and transformers, thereby saving energy for the system. Keywords: Modelling, Power Factor Correction, Contingency , Energy Saving in Nigeria

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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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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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Wu, Wei, Da Gui Huang, and Jian Liu. "Simulation and Experiment Study on Three-Phase PFC Rectifier Using MC33262." Advanced Materials Research 339 (September 2011): 666–69. http://dx.doi.org/10.4028/www.scientific.net/amr.339.666.

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This paper introduces a single-phase power factor correction (PFC) rectifier using MC33262; explores and clarifies parallel three-phase PFC rectifier analyses and explanations; proposes an improving method; uses PSpice simulation software to make modeling, simulation and experiment for the improved three-phase PFC rectifier; and verifies its correctness and feasibility as well.

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Bangarraju, J., V. Rajagopal, V. Sharada, and K. Lakshmaiah. "Peak Detection Control Strategy based STATCOM for Suppression of Power Quality Problems." E3S Web of Conferences 87 (2019): 01027. http://dx.doi.org/10.1051/e3sconf/20198701027.

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This paper explains about control of VSC using uni-polar switching based Static Compensator (STATCOM) using Peak Detection Control Strategy for elimination of PQ Problems. The proposed STATCOM are operated in PFC (Power Factor Correction) mode and ZVR (Zero Voltage Regulation) mode. Under these operation modes of STATCOM is able to suppression of harmonics, PFC at source, reactive power compensation, load balancing and compensation of neutral current. A non-isolated star/three individual single- phase transformers are connected at PCC (Point of Common Coupling) to mitigate neutral current. The Peak Detection Control Strategy is simple to implement for estimating switching pulses for VSC. This peak detection control strategy based STATCOM is modelled, simulated results are validated using MATLAB R2013b.

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Jin, Ning-Zhi, Zhi-Qiang Wu, Long Zhang, Yu Feng, and Xiao-Gang Wu. "Bridgeless PFC Converter without Electrolytic Capacitor Based on Power Decoupling." Electronics 12, no. 2 (January 8, 2023): 321. http://dx.doi.org/10.3390/electronics12020321.

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Due to fewer conduction devices in operating condition, the bridgeless power factor correction (PFC) converter is more efficient than the traditional PFC circuit. However, to achieve a low output voltage ripple on the DC side, a large electrolytic capacitor must be connected in parallel to the output end. To reduce the value of capacitance, this paper proposes a dual-boost bridgeless PFC converter with a bidirectional buck/boost power decoupling converter in the latter stage. The bidirectional converter absorbs double-line-frequency ripple, lowering the power pulsation at the output end while realizing power decoupling. The one-cycle control is adopted in bridgeless PFC converter, so that the input current can follow the input voltage to achieve power factor correction and decrease harmonic pollution. The power decoupling circuit is designed with a voltage outer loop using PI control and a current inner loop using model predictive current control, which alleviates the output voltage fluctuation caused by the reduction of the capacitance value of the filter capacitor, for the purpose of realizing non-electrolytic capacitor. Finally, the topology and control strategy involved in this paper are simulated and experimented to verify the validity and superiority of the theory.

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32

Jaehong Hahn, P. N. Enjeti, and I. J. Pitel. "A new three-phase power-factor correction (PFC) scheme using two single-phase PFC modules." IEEE Transactions on Industry Applications 38, no. 1 (2002): 123–30. http://dx.doi.org/10.1109/28.980366.

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Zhang, Wenli, Zhengyang Liu, Fred Lee, Shuojie She, Xiucheng Huang, and Qiang Li. "A Gallium Nitride-Based Power Module for Totem-Pole Bridgeless Power Factor Correction Rectifier." International Symposium on Microelectronics 2015, no. 1 (October 1, 2015): 000324–29. http://dx.doi.org/10.4071/isom-2015-wp11.

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The totem-pole bridgeless power factor correction (PFC) rectifier has recently gained popularity for ac-dc power conversion. The emerging gallium nitride (GaN) high-electron-mobility transistor (HEMT), having a small body diode reverse recovery effect and low switching loss, is a promising device for use in the totem-pole approach. The design, fabrication, and thermal analysis of a GaN-based full-bridge multi-chip module (MCM) for totem-pole bridgeless PFC rectifier are introduced in this work. Four cascode GaN devices using the same pair of high-voltage GaN HEMT and low-voltage silicon (Si) power metal-oxide-semiconductor field-effect transistor (MOSFET) chips, as used in the discrete TO-220 package, were integrated onto one aluminum nitride direct-bonded-copper (AlN-DBC) substrate in a newly designed MCM. This integrated power module achieves the same function as four discrete devices mounted on the circuit board. In this module design, the Si and GaN bare die were arranged in a stack-die format for each cascode device to eliminate the critical common source inductance, and thus to reduce parasitic ringing at turn-off transients. In addition, an extra capacitor was added in parallel with the drain-source terminals of the Si MOSFET in each cascode GaN device to compensate for the mismatched junction capacitance between the Si MOSFET and GaN HEMT, which could accomplish the internal zero-voltage switching of the GaN device and reduce its turn-on loss. The AlN-DBC substrate and the flip-chip format were also applied in the module design. This GaN-based MCM shows an improved heat dissipation capability based on the thermal analysis and comparison with the discrete GaN device. The totem-pole bridgeless PFC rectifier built using this integrated power module is expected to have a peak efficiency of higher than 99% with a projected power density greater than 400 W/in3.

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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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35

Nan, Yu Rong, and Na Meng. "Three-Phase Power Factor Correction Converter Based on One-Cycle Control in Aircraft Electric Power System." Advanced Materials Research 97-101 (March 2010): 2903–8. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.2903.

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Traditional three-phase PFC converters based on one-cycle control (OCC) exhibit instabi- lity at light load conditions.This will cause much more harmonic current which is harmful to the syterm.To overcome this disadvantage, this paper introduces a modified three-phase power factor correction(PFC) converter based on one-cycle control in aircraft electric power system. The input voltage multiplies a gain and its result is added to the actual sensed current,then the sum of them is compared with the sawtooth waveform to yield switching signal.This is the modified contorl mathod. Finally the MATLAB simulations at heavy and light loads as well as the transfer between them are carried. The simulation results show that the improved control circuit can achieve unity power factor and exhibit stability at light loads.

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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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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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38

Antony, Santhi Mary, and Godwin Immanuel. "A Novel Single Phase bridgeless AC/DC PFC converter for Low Total Harmonics Distortion and High Power Factor." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (March 1, 2018): 17. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp17-24.

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Now day’s the power factor has become a major problem in power system to improve the power quality of the grid, as power factor is affected on the grid due to the nonlinear loads connected to it. Single phase bridgeless AC/DC power factor correction (PFC) topology to improve the power factor as well as the total harmonic distortion (THD) of the utility grid is proposed. By removing the input bridge in conventional PFC converters, the control circuit is simplified; the total harmonics distortion (THD) and power factor (PF) are improved. The PI controller operates in two loops one is the outer control loop which calculates the reference current through LC filter and signal processing. Inner current loop generates PWM switching signals through the PI controller. The output of the proposed PFC topology is verified for prototype using MATLAB circuit simulations. The experimental system is developed, and the simulation results are obtained.

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39

Choi, Hangseok. "Interleaved Boundary Conduction Mode (BCM) Buck Power Factor Correction (PFC) Converter." IEEE Transactions on Power Electronics 28, no. 6 (June 2013): 2629–34. http://dx.doi.org/10.1109/tpel.2012.2222930.

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Zhang, W., G. Feng, Y. F. Liu, and B. Wu. "A Digital Power Factor Correction (PFC) Control Strategy Optimized for DSP." IEEE Transactions on Power Electronics 19, no. 6 (November 2004): 1474–85. http://dx.doi.org/10.1109/tpel.2004.836675.

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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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Diaz, F. Javier, Francisco J. Azcondo, Rosario Casanueva, and Christian Brañas. "Power Source Electronic Ballast for Electrodeless Fluorescent Lamps." Electronics 9, no. 1 (December 27, 2019): 34. http://dx.doi.org/10.3390/electronics9010034.

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This paper presents the design, control strategy and experimental results of a two-step, power factor correction stage (PFC) and resonant inverter (RI), electronic ballast proposal to supply 150 W electrodeless fluorescent lamps (EFL). The PFC acts as a controlled power source and provides mid and long-term stability to the system, while the stability of the current through the lamp is achieved with the RI. In addition, the power-mode control requires limitation of the output voltage. The dual operation mode of the PFC (voltage source mode and power source mode) enables an efficient soft resonant ignition and the implementation of simple dimming regulation.

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Tseng, Sheng-Yu, Po-Jui Huang, and Dong-Heng Wu. "Power Factor Corrector with Bridgeless Flyback Converter for DC Loads Applications." Energies 11, no. 11 (November 9, 2018): 3096. http://dx.doi.org/10.3390/en11113096.

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Since power systems with a DC distribution method has many advantages, such as conversion efficiency increase of about 5–10%, cost reducing by about 15–20% and so on, the AC distribution power system will be replaced by a DC distribution one. This paper presents a DC load power system for a DC distribution application. The proposed power system includes two converters: DC/DC converter with battery source and power factor corrector (PFC) with a line source to increase the reliability of the power system when renewable energy or energy storage equipment are adopted. The proposed PFC adopts a bridgeless flyback converter to achieve power factor correction for supplying power to DC loads. When the bridgeless flyback converter is used to achieve PFC, it needs two transformers to process positive and negative half periods, respectively. In order to increase conversion efficiency, the flyback one can add two sets of the active clamp circuit to recover energies stored in leakage inductances of transformers in the converter. Therefore, the proposed bridgeless flyback converter can not only integrate two transformers into a single transformer, but also share a clamp capacitor to achieve energy recovery of leakage inductances and to operate switches with zero-voltage switching (ZVS) at the turn-on transition. With this approach, the proposed converter can increase conversion efficiency and decrease component counts, where it results in a higher conversion efficiency, lower cost, easier design and so on. Finally, a prototype with a universal input voltage source (AC 90–265 V) under output voltage of 48 V and maximum output power of 300 W has been implemented to verify the feasibility of the proposed bridgeless flyback converter. Furthermore, the proposed power system can be operated at different cases among load power PL, output power PDC1 of DC/DC converter and output power PDC2 of the proposed PFC for supplying power to DC loads.

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Rani, R. A., Shakir Saat, Yusmarnita Yusop, Huzaimah Husin, F. K. Abdul Rahman, and A. A. Isa. "The Effects of Total Harmonics Distortion for Power Factor Correction at Non-Linear Load." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 2 (June 1, 2016): 551. http://dx.doi.org/10.11591/ijpeds.v7.i2.pp551-560.

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This paper presents the effect of total harmonic distortion (THD) in power factor correction (PFC) at non-linear load. This study focuses on the relationship between THD and PFC. This is beacuse,the power factor affects THD. This occurs in power system as we have variety of loads, i. e linear load or non-linear load. The variety of loads will influence the sinusoidal waveform, which comes out from harmonic distortion. Thus, based on this study, we can compare the effective method in improving the power factor as it will not disturb the performance of THD. The focus of study is on the single phase load, where the voltage restriction is 240 V. The analysis will only focus on the consumer, which depends on the variety of non-linear load. Besides, the parameters for analysis are based on the percentage of THD and the value of power factor. The instrument for measuring the parameter is based on power factor correction device or technique. On the other hand, the method that was used for this study is based on simulation which incorporated the Multisim software. At the end of ths study, we can choose the most effective method that can be used to improve the power factor correction without disturbing the THD.

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Khudhair, Manar A., Alaa A. Al-Saffar, and Rasheed S. Jasim. "SEPIC converter of Automatic Power Factor Correction by improved traditional linear control." International Journal of Current Engineering and Technology 11, no. 02 (March 1, 2021): 162–67. http://dx.doi.org/10.14741/ijcet/v.11.2.3.

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With increasing using of nonlinear electronic equipment at a wide range, total harmonics distortion (THD) in the line current has grown to be a considerable problem. The methods that include reducing harmonics in line current and power factor correction are required. Therefore, the essential target of this proposed work is to reduce the harmonics produced in the line current and improve the power quality of the load by the output voltage regulation and power factor correction (PFC). This paper presents a Single-Ended Primary Inductance Converter (SEPIC) at Discontinuous Conduction Mode (DCM) for automatic power factor Correction (APFC). The SEPIC converter is modeling by utilizing Current Injected Equivalent Circuit Approach (CIECA). The control system is applied by traditional linear control (TLC). The TLC has been modified by an optimization algorithm (OA) and adds an (inner or current). The proposed design of SEPIC-PFC is implemented by MATLAB and Simulink. According to the simulated dynamic behavior results, a unity power factor and 15% of total harmonics distortion (THD) reduction have been obtained comparing with previous work. Besides, a regulated DC output voltage has been achieved. The proposed control system has a low overshoot, small settling time, and steady-state error close to zero

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Dhanasekaran, P. M., R. Balamurugan, P. Veena, and R. Nithya. "New Single Phase Bridgeless CUK Converter Topology for Power Factor Enhancement Based on Fuzzy Logic Control." Journal of Circuits, Systems and Computers 24, no. 07 (June 17, 2015): 1550102. http://dx.doi.org/10.1142/s0218126615501029.

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A new single phase bridgeless power factor correction (PFC) converter derived from CUK topology is proposed. In this new CUK converter, the absence of the front end diode bridge results in the less switching and conduction losses compared to the conventional PFC converter. The current flow in the proposed converter configuration has only two semiconductor switches and it results in less conduction loss during each interval of the switching cycle. It offers less input current ripple, less electromagnetic interference (EMI) and also protection against the starting inrush current. It is mostly preferred compared to the other PFC topologies since it has both continuous input and output currents with a reduced current ripple. The proposed converter uses the simple control strategy and is made to work in the discontinuous conduction mode (DCM) to achieve almost a unity power factor. It also offers zero current turn ON and turn OFF for power switches. The performance of the proposed PFC converter is tested in MATLAB/SIMULINK environment with fuzzy logic controller (FLC). The simulation results of the proposed new CUK PFC converter validate the effectiveness of FLC in power factor enhancement.

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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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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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Babu, G. Kishor. "Singular Perturbation Method for Boundary Value and Optimal Problems to Power Factor Correction Converter Application." WSEAS TRANSACTIONS ON ELECTRONICS 11 (May 19, 2020): 42–53. http://dx.doi.org/10.37394/232017.2020.11.6.

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A linear discrete stable control system is considered. The Power Factor Correction (PFC) converter to allow independent control of current and voltage. It converter are fast and slow states to inheres sty present small parameters inductor and capacitor its computes stiffness and to include switching ripple effects. As an alternative a Singular Perturbation Method (SPM) is presented Boundary Value Problem (BVP) and Optimal Problem. It is applied to two state switching power converters to provide rigorous justification of\ the time scale separation. It is modeled as a one parameter singularly perturbed system. SPM consists of an outer series solution and one boundary layer correction (BLC) solution. A boundary layer correction is required to recover the initial conditions lost in the process of degeneration and to improve the solution. SPM is carried out up to second-order approximate solution for the PFC converter model for BVP and optimal control problems. The results are compared with the exact solution (between with and without parameters). The results substantiate the application.

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

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