Journal articles: 'AC-DC converter'

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Ma, Dajun. "Multiport AC-AC-DC Converter for SNOP With One Medium-Frequency Transformer." CPSS Transactions on Power Electronics and Applications 7, no. 4 (December 2022): 374–85. http://dx.doi.org/10.24295/cpsstpea.2022.00034.

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With the access of increased renewable energy sources, the conventional AC distribution network is hard to flexibly adjust the line voltage and power flow. Therefore, the soft normally open point (SNOP) is applied to increase the flexibility of AC distribution network. The existing converters for SNOP use many submodules (SMs) and passive components, which have the poor economy. On this basis, a multiport AC-AC-DC converter for SNOP with one medium-frequency transformer (MFT) is proposed in this paper. The proposed multiport AC-AC-DC converter is based on the back-to-back (BTB) cascaded H-bridge (CHB) converter structure, and uses several LC resonant circuits and one MFT to replace the multiple DC-DC converters in the existing BTB CHB converters. Therefore, many SMs and passive components can be saved. Moreover, the voltages at multiple AC and DC ports of proposed multiport AC-AC-DC converter are completely decoupled, and the multiple AC and DC systems can be adjusted independently. The detailed circuit structure, control principle and design procedure of multiport AC-AC-DC converter are introduced in this paper. Finally, the simulation and experimental results verify the effectiveness of multiport AC-AC-DC converter.

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Fang, Lin Luo. "DC-Modulated AC/AC Converters." Applied Mechanics and Materials 341-342 (July 2013): 1317–25. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.1317.

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Traditional methods of AC/AC converters have general drawbacks: output voltage is lower than input voltage, the input side THD is poor and output voltage frequency is lower than input voltage frequency by using voltage regulation method and cycloconverters. We introduce the novel approach - DC-modulated AC/AC converters in this paper, which successfully overcomes the drawbacks. Simulation and experimental results of the DC-modulated AC/AC converter are the evidences to verify our design. These methods will be very widely used in industrial applications.

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Antar, Rakan K. "Speed Control of DC Motor using AC/AC/DC Converter Based on Intelligent Techniques." Tikrit Journal of Engineering Sciences 16, no. 2 (June 30, 2009): 11–19. http://dx.doi.org/10.25130/tjes.16.2.02.

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This paper describes the application of ac/ac/dc and ac/dc converters to control the speed of a separately excited DC motor. Artificial neural network and PI controller are trained to select the desired values of firing angles for triggering thyristors of the ac/ac/dc and ac/dc bridge converters in order to control the speed of the dc motor at a desired value with constant and different load torques in order to obtain the best speed response. Simulation results show that the rising time for ac/dc and ac/ac/dc converters at 250rpm are reduced about 79% and 89% respectively, while delay time it reduced about 69% and 64% respectively. Therefore, speed response of the dc motor is more efficient for closed loop system compared with open loop also the response of ac/ac/dc converter is better than ac/dc converter.

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Mudadla, Dhananjaya, Devendra Potnuru, Raavi Satish, Almoataz Y. Abdelaziz, and Adel El-Shahat. "New Class of Power Converter for Performing the Multiple Operations in a Single Converter: Universal Power Converter." Energies 15, no. 17 (August 29, 2022): 6293. http://dx.doi.org/10.3390/en15176293.

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Universal power converters (UPCs) have aroused significant attention in performing multiple operations in a single power converter. Furthermore, they contribute to economic operation and improved system performance. In this work, a new configuration of the universal power converter (UPC) was proposed by using a simple switching arrangement. It can perform different modes of operations, such as AC–DC, DC–DC, DC–AC, AC–AC, and cyclo-converter operations. In DC–DC conversion, the proposed configuration can perform buck mode, boost mode, and buck–boost mode of operations. Moreover, in DC–AC conversion, it gives better total harmonic distortion (THD). The effectiveness of the proposed configuration was verified by an extensive simulation, using MATLAB/Simulink environment. A low-power prototype circuit was designed to test the viability of the proposed circuit configuration and validated with simulation results.

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Suryadi, Aris, Purwandito Tulus Asmoro, and Agus Sofwan. "Design and Simulation Converter with Buck-boost Converter as The Voltage Stabilizer." International Journal of Electrical, Energy and Power System Engineering 3, no. 3 (October 12, 2020): 77–81. http://dx.doi.org/10.31258/ijeepse.3.3.77-81.

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Buck-boost Converter is the device with the function to convert DC Voltage input to the setpoint DC Voltage output. Buck-boost converter can be used for regulating unstable voltage became a stable voltage by the user’s needs. Using a Buck-boost Converter in the research is about how to apply a Buck-boost Converter of the AC to AC Converter device, AC to AC Converter is the device to convert AC voltage to AC Voltage where the voltage can be modified. In the research, the input Voltage of AC to AC Converter is unstable, so that the output Voltage is unstable too in the range of 190 V to 250 V. To solve this problem, that the Buck-boost can be installed to AC to AC Converter, it is useful to keep output Voltage stable even though the input Voltage is unstable. The AC to AC Converter device in this research consist of Rectifier, Buck-boost Converter, and Inverter. The experiment result of this research show that unstable AC input Voltage, 190 V to 250 V from the source after passing a Rectifier, became an unstable DC input Voltage, then be regulated by Buck-boost Converter became a stable DC Voltage, and then after passing the Inverter, a stable DC Voltage is converted became a stable AC Voltage, corresponding with the set point. For further development, AC to AC Converter combined with Buck-boost Converter can be applied to maintain a standard of Voltage 220 V AC from the sources to keep it stable.

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Pote, Dr Ravindra S. "Three Phase Grid Connected Inverter for Solar Photovoltaic Systems." International Journal for Research in Applied Science and Engineering Technology 10, no. 8 (August 31, 2022): 1619–24. http://dx.doi.org/10.22214/ijraset.2022.46467.

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Abstract: The main aim is to convert the Solar PV DC voltage into AC voltage by using 3 phase inverter and getting sinusoidal AC output voltage. To convert solar PV which is in DC needs to be converted into AC by using the devices like 3 phase inverter and boost converter. The solar PV is a variable DC that is to be converted into pure DC for which will convert variable DC to pure DC. The MPPT is designed and is applied to boost converter which increases the solar PV’s efficiency. Then the output of boost converter which is DC voltage is given to 3 phase inverter. The 3 phase inverter which is connected to output of boost converter will convert the DC voltage into AC and we get sinusoidal AC. A three-phase grid-connected inverter designed for a photovoltaic power plant that features a maximum power point tracking (MPPT) scheme based on fuzzy logic. The whole system simulate in MATLAB. This fuzzy MPPT will shows accurate and fast response, and is integrated in the inverter.

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Upendar, Jalla, Sangem Ravi Kumar, Sapavath Sreenu, and Bogimi Sirisha. "Implementation and study of fuzzy based KY boost converter for electric vehicle charging." International Journal of Applied Power Engineering (IJAPE) 11, no. 1 (March 1, 2022): 98. http://dx.doi.org/10.11591/ijape.v11.i1.pp98-108.

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Elecetric vehicle batteries require direct current (DC) current for charging; hence the circuit alternating current (AC) is converted to DC by a battery charger. Battery charger mostly consists of a rectifier and DC-DC converter with a controller built in to serve as a protective circuit. A harmonic source load is a type of electric car charger. During the AC-DC change over method, harmonic current is introduced into the power system, affecting power quality. In this study, a charging station consisting of buck boost and a charging station consisting a KY Boost converter were simulated. To maintain output voltage of DC-DC converters constant controller is used, the controller is either PI or fuzzy logic controller. So, four models are developed and simulated which are buck-boost converter controlled by proportional-integral (PI)-controller, KY-boost converter controlled by proportional integral-controller, buck boost converter controller fuzzy logic controller and KY boost-converter controlled by fuzzy logic controller. The total harmonic distortion (THD) of the four models is compared.

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Barrios, Manuel A., Víctor Cárdenas, Jose M. Sandoval, Josep M. Guerrero, and Juan C. Vasquez. "A Cascaded DC-AC-AC Grid-Tied Converter for PV Plants with AC-Link." Electronics 10, no. 4 (February 8, 2021): 409. http://dx.doi.org/10.3390/electronics10040409.

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Cascaded multilevel converters based on medium-frequency (MF) AC-links have been proposed as alternatives to the traditional low-voltage inverter, which uses a bulky low-frequency transformer step-up voltage to medium voltage (MV) levels. In this paper, a three-phase cascaded DC-AC-AC converter with AC-link for medium-voltage applications is proposed. Three stages integrate each DC-AC-AC converter (cell): a MF square voltage generator; a MF transformer with four windings; and an AC-AC converter. Then, k DC-AC-AC converters are cascaded to generate the multilevel topology. This converter’s topological structure avoids the per-phase imbalance; this simplifies the control and reduces the problem only to solve the per-cell unbalance. Two sets of simulations were performed to verify the converter’s operation (off-grid and grid-connected modes). Finally, the papers present two reduced preliminary laboratory prototypes, one validating the cascaded configuration and the other validating the three-phase configuration.

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İskender, İres, Yıldürüm Üçtug˘, and H. Bülent Ertan. "Steady‐state modeling of a phase‐shift PWM parallel resonant converter." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 25, no. 4 (October 1, 2006): 883–99. http://dx.doi.org/10.1108/03321640610684051.

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PurposeTo derive an analytical model for a dc‐ac‐dc parallel resonant converter operating in lagging power factor mode based on the steady‐state operation conditions and considering the effects of a high‐frequency transformer.Design/methodology/approachA range of published works relevant to dc‐ac‐dc converters and their control methods based on pulse‐width‐modulation technique are evaluated and their limitations in output measurement of higher output voltage converters are indicated. The circuit diagram of the converter is described and the general mathematical model of the system is obtained by deriving and combining the mathematical models of the different converter blocks existing in the system. The derived mathematical model is used to study the steady‐state and transient performance of the converter. The deriving procedure of the analytical model for a parallel resonant converter is extensively given and the analytical model obtained is verified by simulation results achieved using MATLAB/SIMULINK and the program written by the authors.FindingsThe paper suggests an analytical model for dc‐ac‐dc parallel resonant converters. The model can be used in the output voltage estimation of a converter in terms of its phase‐shift angle and the dc‐link voltage.Research limitations/implicationsThe resources in the library of the authors' university and also the English resources relative to dc‐ac‐dc converters reachable through the internet were researched.Practical implicationsThe analytical model suggested can be used in estimating the output voltage of the converters used in high‐voltage applications or where there are difficulties in employing sensors in measurement of the output voltage due to high price or implementation problems.Originality/valueThe originality of the paper is to present an analytical model for dc‐ac‐dc parallel resonant converters. Using this model makes it possible to estimate the output voltage of the converter using the dc‐link voltage and the phase‐shift angle. The proposed model provides researchers to regulate the output voltage of the converters using feed‐forward control technique.

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Biswas, Shuvra Prokash, Md Shihab Uddin, Md Rabiul Islam, Sudipto Mondal, and Joysree Nath. "A Direct Single-Phase to Three-Phase AC/AC Power Converter." Electronics 11, no. 24 (December 16, 2022): 4213. http://dx.doi.org/10.3390/electronics11244213.

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The traditional DC-link indirect AC/AC power converters (AC/DC/AC converters) employ two-stage power conversion, which increases the circuit complexity along with gate driving challenges, placing an excessive burden on the processor while implementing complex switching modulation techniques and leads to power conversion losses due to the use of a large amount of controlled power semiconductor switches. On the contrary, the traditional direct AC/AC voltage controllers, as well as frequency changers, suffer from high total harmonic distortion (THD) problems. In this paper, a new single-phase to three-phase AC/AC step-down power converter is proposed, which utilizes a multi-linking transformer and bilateral triode thyristors (TRIACs) as power semiconductor switches. The proposed direct AC/AC power converter employs single-stage power conversion, which mitigates the complexity of two-stage DC-link indirect AC/AC converters and traditional single-stage AC/AC frequency changers. Instead of using high-frequency pulse width modulated gate driving signals, line frequency gate pulses are used to trigger the TRIACs of the proposed AC/AC converter, which not only aids in reducing the power loss of the converter but also mitigates the cost and complexity of gate driver circuits. The proposed AC/AC converter reduces the THD of the output voltage significantly as compared to traditional direct AC/AC frequency changers. The performance of the proposed AC/AC converter is validated against RL and induction motor load in terms of overall THD and individual harmonic components through MATLAB/Simulink environment. A reduced-scale laboratory prototype is built and tested to evaluate the performance of the proposed AC/AC power converter. The experimental and simulation outcomes reveal the feasibility and excellent features of the proposed single-phase to three-phase AC/AC converter topology.

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Liao, Yi-Hung. "A Step Up/Down Power-Factor-Correction Converter with Modified Dual Loop Control." Energies 13, no. 1 (January 1, 2020): 199. http://dx.doi.org/10.3390/en13010199.

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A step up/down AC/DC converter with modified dual loop control is proposed. The step up/down AC/DC converter features the bridgeless characteristic which can reduce bridge-diode conduction losses. Based on the step up/down AC/DC converter, a modified dual loop control scheme is proposed to achieve input current shaping and output voltage regulation. Fewer components are needed compared with the traditional bridge and bridgeless step up/down AC/DC converters. In addition, the intermediate capacitor voltage stress can be reduced. Furthermore, the top and bottom switches still have zero-voltage turn-on function during the negative and positive half-line cycle, respectively. Hence, the thermal stresses can also be reduced and balanced. Simulation and experimental results are provided to verify the validity of the proposed step up/down AC/DC converter and its control scheme.

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Le, Phuong Minh, Dzung Quoc Phan, Huy Minh Nguyen, and Phong Hoai Nguyen. "Designing an uninterruptible power supply based on the high efficiency push–pull converter." Science and Technology Development Journal 16, no. 3 (September 30, 2013): 29–40. http://dx.doi.org/10.32508/stdj.v16i3.1610.

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This paper presents an implementation of the DC/DC push–pull converter for an uninterruptible power supply (UPS). Some classical DC/DC converters are presented and analyzed for pointing out their advantages and drawbacks. Besides, an original system based on a push-pull converter associated with a dynamic modulation control is chosen. The main advantage is the possibility to control the delivered electric power in a wide range from very low level to high level of voltage within the same basic architecture. It can reduce the switching power losses and increase the power conversion efficiency. This paper proposed a new control scheme of the DC/DC converter and DC/AC inverter. The suggested system consists of a high efficiency DC/DC converter and a singlephase DC/AC inverter has been simulated using Matlab/Simulink and designed basing on the DSP TMS320F28027. Both results show high performances of the DC link and AC load voltages, when load changes from zero to rated. The performance of the proposed system has been verified through a 1kW prototype of the system for a 50 Hz/220-230 VAC load sourcing by two series connected batteries of 12V. The proposed DC/DC converter achieves a high efficiency of 93.0%. The system including the DC/DC converter and DC/AC inverter achieves an efficiency of 91.2% and Total Harmonic Distortion (THD) of AC load voltage reached 1.9%.

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Sikorski, A., and A. Kuźma. "Cooperation of induction squirrel-cage generator with grid connected AC/DC/AC converter." Bulletin of the Polish Academy of Sciences: Technical Sciences 57, no. 4 (December 1, 2009): 317–22. http://dx.doi.org/10.2478/v10175-010-0134-z.

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Cooperation of induction squirrel-cage generator with grid connected AC/DC/AC converter The paper presents a squirrel-cage induction machine operating as a generator principally designed for use in small wind and hydroelectric power stations. The main advantages of such a generator are its high reliability, low price and costs of operation and maintenance. The asynchronous generator coupled to the grid through the AC/DC/AC converter is capable of generating energy even at low turbine speed. The results of investigations on the AC/DC and DC/AC converters controlled by linear and nonlinear current regulators are also discussed.

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Santos, Nelson, J. Fernando Silva, and Vasco Soares. "Control of Single-Phase Electrolytic Capacitor-Less Isolated Converter for DC Low Voltage Residential Networks." Electronics 9, no. 9 (August 29, 2020): 1401. http://dx.doi.org/10.3390/electronics9091401.

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In recent years, there has been a desire to improve electricity generation and consumption, to reach sustainability. Technological solutions today allow a rational use of electricity with good overall performance. Traditionally, from production to distribution, electrical energy is AC-supported for compatibility reasons and easy voltage level transformation. However, nowadays most electric loads need DC power to work properly. A single high-efficiency central AC-DC power converter may be advantageous in eliminating several less efficient AC-DC embedded converters, distributed all over a residential area. This paper presents a new single-phase AC-DC converter using one active bridge (most isolated topologies are based on the dual active bridge concept) and a high-frequency isolation transformer with low-value non-electrolytic capacitors, together with its control system design. The converter can be introduced into future low-voltage DC microgrids for residential buildings, as an alternative to several embedded AC-DC converters. Non-linear control techniques (sliding mode control and the Lyapunov direct method) are employed to guarantee stability in the output DC low voltage with near unity power factor compensation in the AC grid. The designed converter and controllers were simulated using Matlab/Simulink and tested in a lab experimental prototype using digital signal processing (DSP) to evaluate system performance.

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Akherraz, M. "IGBT Based DC/DC Converter." Sultan Qaboos University Journal for Science [SQUJS] 2 (December 1, 1997): 49. http://dx.doi.org/10.24200/squjs.vol2iss0pp49-56.

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This paper presents an in-depth analytical and experimental investigation of an indirect DC-DC converter. The DC-AC conversion is a full bridge based on IGBT power modules, and the AC-DC conversion is done via a high frequency AC link and a first diode bridge. The AC link, which consists of snubbing capacitors and a variable air-gap transformer, is analytically designed to fulfill Zero Voltage commutation requirement. The proposed converter is simulated using PSPICE and a prototype is designed built and tested in the laboratory. PSPICE simulation and experimental results are presented and compared.

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Gerber, Daniel L., Fariborz Musavi, Omkar A. Ghatpande, Stephen M. Frank, Jason Poon, Richard E. Brown, and Wei Feng. "A Comprehensive Loss Model and Comparison of AC and DC Boost Converters." Energies 14, no. 11 (May 27, 2021): 3131. http://dx.doi.org/10.3390/en14113131.

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DC microgrids have become a prevalent topic in research in part due to the expected superior efficiency of DC/DC converters compared to their AC/DC counterparts. Although numerous side-by-side analyses have quantified the efficiency benefits of DC power distribution, these studies all modeled converter loss based on product data that varied in component quality and operating voltage. To establish a fair efficiency comparison, this work derives a formulaic loss model of a DC/DC and an AC/DC PFC boost converter. These converters are modeled with identical components and an equivalent input and output voltage. Simulated designs with real components show AC/DC boost converters between 100 W to 500 W having up to 2.5 times more loss than DC/DC boost converters. Although boost converters represent a fraction of electronics in buildings, these loss models can eventually work toward establishing a comprehensive model-based full-building analysis.

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Andreičiks, Aleksandrs, Kristaps Vitols, Oskars Krievs, and Ingars Steiks. "Current Fed Step-up DC/DC Converter for Fuel Cell Inverter Applications." Scientific Journal of Riga Technical University. Power and Electrical Engineering 25, no. 25 (January 1, 2009): 117–22. http://dx.doi.org/10.2478/v10144-009-0025-z.

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Current Fed Step-up DC/DC Converter for Fuel Cell Inverter ApplicationsIn order to use hydrogen fuel cells in domestic applications either as main power supply or backup source, their low DC output voltage has to be matched to the level and frequency of the utility grid AC voltage. Such power converter systems usually consist of a DC-DC converter and a DC-AC inverter. Comparison of different current fed step-up DC/DC converters is done in this paper and a double inductor step-up push-pull converter investigated, presenting simulation and experimental results. The converter is elaborated for 1200 W power to match the rated power of the proton exchange membrane (PEM) fuel cell located in hydrogen fuel cell research laboratory of Riga Technical University.

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T., Jayachitra, and Eassaki Muthu Pandi A. "A Three Level AC-DC Converter Using Independent Controller." International Journal of Advance Research and Innovation 3, no. 1 (2015): 139–44. http://dx.doi.org/10.51976/ijari.311526.

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Here an improved three-level incorporated ac–dc converter is presented. This converter improving or boosting power factor correction. And also this converter topology is advanced than previous ac-dc converters for the most part the converter is functioning with two independent controllers which are combined in a single converter. Input controller does PFC and regulates dc bus, output controller regulates the output voltage. Converter function is explained and power factor is improved in this paper. Finally the efficiency of the new converter is compared with that of previously proposed converter. Simulation results are obtained using mat lab.

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Sivapriyan, R., and D. Elangovan. "Impedance-Source DC-to-AC/DC Converter." Electronics 8, no. 4 (April 16, 2019): 438. http://dx.doi.org/10.3390/electronics8040438.

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This article presents a novel impedance-source-based direct current (DC)-to-alternating current (AC)/DC converter (Z-Source DAD Converter). The Z-Source DAD converter converts the input DC voltage into AC or DC with buck or boost in the load voltage. This Z-Source DAD conversion circuit is a single-stage power conversion system. This converter circuit converts the input DC voltage into variable-magnitude output DC voltage or converts the DC voltage into a variable-magnitude output AC voltage. The higher voltage magnitude in boost mode can be controlled by controlling the shoot-through (ST) state timing of the converter. MATLAB-Simulink simulation and microcontroller-based hardware circuit results are presented to demonstrate power conversion with the buck and boost features of the Z-Source DAD converter for both types of output voltages. The simulation and experimental results show that the Z-Source DAD converter converts the given DC supply into AC or DC with buck or boost in the output load voltage.

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Li, Xiangkun, Weimin Wu, Houqing Wang, Ning Gao, Henry Shu-hung Chung, and Frede Blaabjerg. "A New Buck-Boost AC/DC Converter with Two-Terminal Output Voltage for DC Nano-Grid." Energies 12, no. 20 (October 9, 2019): 3808. http://dx.doi.org/10.3390/en12203808.

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Due to the development and deployment of renewable DC power sources and their inherent advantages for DC loads in applications, the DC nano-grid has attracted more and more research attentions; especially the topologies of AC/DC converters are increasingly studied. When designing an AC to DC converter for a DC nano-grid system, the grounding configuration, which determines the costs, the efficiency as well as the safety, plays an important role. A three-terminal output AC to DC converter based on united grounding configuration has been presented for DC nano-grid. However, it has to be pointed out that the three-terminal output DC nano-grid is not as popular as the two-terminal DC output one, due to the infrastructure consideration. This paper proposes a new Buck-Boost AC to DC converter with two-terminal output voltage for DC nano-grid. The operating principle, the steady-state analysis, and the small signal modelling for the proposed converter working in continuous conduction mode are presented in detail. A 220 V/50 Hz/800 W prototype was fabricated to verify the effectiveness of the proposed converter.

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Lin, B. R., and H. H. Lu. "Multilevel AC/DC/AC converter for AC drives." IEE Proceedings - Electric Power Applications 146, no. 4 (1999): 397. http://dx.doi.org/10.1049/ip-epa:19990253.

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Santos, Arthur, Gerald Duggan, Stephen Frank, Daniel Gerber, and Daniel Zimmerle. "Endpoint Use Efficiency Comparison for AC and DC Power Distribution in Commercial Buildings." Energies 14, no. 18 (September 16, 2021): 5863. http://dx.doi.org/10.3390/en14185863.

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Advances in power electronics and their use in Miscellaneous Electric Loads (MELs) in buildings have resulted in increased interest in using low-voltage direct current (DC) power distribution as a replacement for the standard alternating current (AC) power distribution in buildings. Both systems require an endpoint converter to convert the distribution system voltage to the MELs voltage requirements. This study focused on the efficiency of these endpoint converters by testing pairs of AC/DC and DC/DC power converters powering the same load profile. In contrast to prior studies, which estimated losses based on data sheet efficiency and rated loads, in this study, we used part load data derived from real-world time-series load measurements of MELs and experimentally characterized efficiency curves for all converters. The measurements performed for this study showed no systematic efficiency advantage for commercially available DC/DC endpoint converters relative to comparable, commercially available AC/DC endpoint converters. For the eight appliances analyzed with the pair of converters tested, in 50%, the weighted energy efficiency of the DC/DC converter was higher, while, for the other 50%, the AC/DC converter was. Additionally, the measurements indicated that the common assumption of using either data sheet efficiency values or efficiency at full load may result in substantial mis-estimates of the system efficiency.

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Feng, Wang, and Luo Yutao. "Modelling of a Power Converter with Multiple Operating Modes." World Electric Vehicle Journal 9, no. 1 (June 5, 2018): 7. http://dx.doi.org/10.3390/wevj9010007.

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In order to achieve DC voltage matching, on-board charging, and DC/AC power inversion, three independent power converters are often needed in traditional Distributed Power Converter (DPC) systems of electric vehicles (EVs): bidirectional DC/DC (Bi-DC/DC), AC/DC, and DC/AC. The requirement of electronic devices such as power switches, inductors, and capacitors make the converter costly and complicated in structure. In this paper, a power converter with multi-operating mode (PCMM) is presented. The proposed PCMM can work in Bi-DC/DC, AC/DC, and DC/AC modes. The state-space averaging model of PCMM considering resistance of Insulated Gate Bipolar Transistor (IGBT) and the inductor is presented. Based on this model, the transfer function of the system is derived and the controller is designed. The simulation and experimental results show that PCMM can meet the design target and verify the feasibility of the model. The measurement results show that the weight of PCMM proposed in this paper is reduced by 51.2% compared with the traditional structure.

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Domino, A., K. Zymmer, and M. Parchomiuk. "Selected converter topologies for interfacing energy storages with power grid." Bulletin of the Polish Academy of Sciences Technical Sciences 65, no. 5 (October 1, 2017): 579–88. http://dx.doi.org/10.1515/bpasts-2017-0063.

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Abstract The paper presents different solutions applicable in power converter systems for connecting power grids with energy storage systems such as superconducting magnetic energy storage (SMES), supercapacitor energy storage (SES) or chemical batteries. Those systems are characterized by bidirectional current flow between energy storage and power grid. Two-level converters (AC-DC and DC-AC converters) dedicated for low power energy storage compatible with 3×400 V-type power grids are proposed. High power systems are connected with 3×6 kV-type power grids via transformers that adjust voltage to the particular energy storage or directly, based on multilevel power converters (AC-DC and DC-AC) or dual active bridge (DAB) systems. Solutions ensuring power grid compatibility with several energy storage systems of the same electrical parameters as well as of different voltage-current characteristics are also proposed. Selected simulation results illustrating operation of two system topologies of 200 kW power for two-level converter and neutral point clamped (NPC) three-level converter are presented.

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Mahobia, S. K., and G. R. Kumrey. "STUDY AND PERFORMANCE OF SINGLE-PHASE RECTIFIERS WITH VARIOUS TYPE OF PARAMETER." International Journal of Engineering Technologies and Management Research 3, no. 1 (January 30, 2020): 9–14. http://dx.doi.org/10.29121/ijetmr.v3.i1.2016.39.

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This paper represents the study of different types of single phase AC to DC step down converter. Performances and outputs have analyzed depending on the equations. Different parameters such as voltage gain, harmonic contents in input current, and parameters of changing output voltage are compared different type of single phase AC to DC converters. AC to DC converter is defined as rectifier. The main power supply system is alternating in nature. Rectification action is required to obtain DC supply from the main power supply which issinusoidal.

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Chen, Xiaojiao. "Transient DC Over-Voltage Protection for ITER PF AC/DC Converter." CPSS Transactions on Power Electronics and Applications 6, no. 4 (December 2021): 276–80. http://dx.doi.org/10.24295/cpsstpea.2021.00026.

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The International Thermonuclear Experimental Reactor (ITER) poloidal field (PF) AC/DC converters are composed by thyristor-based phase controlled converter modules. As the core component of ITER PF AC/DC converter, the thyristor is very sensitive to over-voltage and damaged in microseconds, therefore, the transient over-voltage protection strategy is desperately essential to ensure the converter safety operation. In this paper, a nanosecond respond and high reliability protection strategy which combined by Metal Oxide Varistor (MOV) and external bypass is proposed to protect the ITER PF AC/DC converter from transient DC over-voltage. The MOV is designed to certify the fast respond in nanosecond. Moreover, a bidirectional BreakOver Diode (BOD) circuit board is designed to activate external bypass to ensure the reliability of the transient DC over-voltage protection strategy. The performance-testing platform is built to study its performance. The experiments on ITER PF AC/DC converter test facility are carried out. According to the experiment results, the external bypass is triggered by BOD board effectively and the load current is transferred to the external bypass in 2 us when BOD suffers from an over-voltage. The effectiveness of the proposed transient DC over-voltage protection strategy is verified.

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Chen, Rong, and Jia Sheng Zhang. "DC/AC Converter Based on Buck Regulator." Applied Mechanics and Materials 392 (September 2013): 435–38. http://dx.doi.org/10.4028/www.scientific.net/amm.392.435.

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The introduction of DC/AC converter based on buck regulator is firstly shown, and the analysis of the converters working principle is taken. The control method applied for DC/AC converter based on buck regulator is studied also. The control effect of the open-loop proportional-differential control and closed-loop proportional-integral control are compared by using PSIM software. The parameters adopted in the realistic simulation, waveforms such as voltage of modulation reference and load were given. The simulation results proved that adopting the DC/AC converter could achieve a good performance and can gain a line frequency as 50Hz and the correctness of theoretical analysis.

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Saravanan, V., K. M. Venkatachalam, M. Arumugam, M. A. K. Borelessa, and K. T. M. U. Hemapala. "Review of impedance source power converter for electrical applications." International Journal of Advances in Applied Sciences 10, no. 4 (December 1, 2021): 310. http://dx.doi.org/10.11591/ijaas.v10.i4.pp310-334.

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Power electronic converters have been actively researched and developed over the past decades. There is a growing need for new solutions and topography to increase the reliability and efficiency of alternatives with lower cost, size and weight. Resistor source converter is one of the most important power electronic converters that can be used for AC-DC, AC-AC, DC-DC and DC-DC converters which can be used for various applications such as photovoltaic systems, wind power systems, electricity. Vehicles and fuel cell applications. This article provides a comprehensive overview of Z-source converters and their implementation with new configurations with advanced features, emerging control strategies and applications.

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Nakamura, Hideo, and Yoshihiro Murai. "Current Resonant DC Link AC/AC Converter without DC Inductance." IEEJ Transactions on Industry Applications 113, no. 5 (1993): 611–16. http://dx.doi.org/10.1541/ieejias.113.611.

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Jadidi, Saeedreza, Hamed Badihi, and Youmin Zhang. "Passive Fault-Tolerant Control Strategies for Power Converter in a Hybrid Microgrid." Energies 13, no. 21 (October 27, 2020): 5625. http://dx.doi.org/10.3390/en13215625.

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Control of AC/DC pulse-width modulation (PWM) power electronic converter, referred to as “AC/DC PWM converter”, is vital to the efficient regulation of power flow between AC and DC parts of a hybrid microgrid. Given the importance of such converters in AC/DC microgrids, this paper investigates the design of fault-tolerant control for AC/DC PWM converters in the presence of microgrid faults. In particular, two novel fault-tolerant schemes based on fuzzy logic and model predictive control are proposed and implemented in an advanced hybrid microgrid benchmark in MATLAB/Simulink environment. The considered hybrid microgrid consists of dynamic loads and distributed energy resources including solar photovoltaic arrays, wind turbines, and battery energy storage systems. The proposed schemes especially target the fault effects due to common power-loss malfunctions in solar photovoltaic arrays in the presence of microgrid uncertainties and disturbances. The effectiveness of proposed fault-tolerant control schemes is demonstrated and compared under realistic fault scenarios in the hybrid microgrid benchmark.

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Eguchi, Kei, Ratanaubol Rubpongse, Akira Shibata, and Yujiro Harada. "An inductor-less universal switched-capacitor converter realizing dc/dc, ac/dc, dc/ac, and ac/ac conversion." Energy Reports 6 (February 2020): 125–29. http://dx.doi.org/10.1016/j.egyr.2019.11.052.

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Chiu, H. K., Agileswari K. Ramasamy, Nadia M. L. Tan, and Matthew Y. W. Teow. "Modelling of a Two-Stage Bidirectional AC-DC Converter using Wavelet Modulation." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (September 1, 2018): 1006. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp1006-1015.

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In this paper, a Wavelet modulated isolated two-stage three-phase bidirectional AC-DC converter is proposed for electric vehicle (EV) charging systems. Half-bridge resonant CLLC converter is proposed due to its high efficiency, wide gain range, galvanic isolation and bidirectional power flow. Wavelet modulation technique is used for three-phase six leg AC-DC converter due to its benefits of high DC component and lower harmonic contents. The proposed two-stage converter is developed and simulated in MATLAB Simulink environment. The contribution of this paper is on the implementation and performance analysis of Wavelet modulation in bidirectional AC-DC converters. The results show that Wavelet modulation is suitable to be implemented for the proposed bidirectional converter. The performance of the proposed converter delivers very low output voltage ripple and total harmonic distortion output current of less than 10% which is within the expected results.

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Flaxer, Eli. "Principles, design and implementation of a direct AC-to-AC power converter—Regulated electronic transformer." Review of Scientific Instruments 93, no. 11 (November 1, 2022): 114710. http://dx.doi.org/10.1063/5.0122782.

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In the last three decades, the energy conversion market has been dominated by switching power converters due to reduction of size and cost of electronic components. This market includes four types of conversion: DC–DC, DC–AC, AC–DC, and AC–AC. While the first three types are applied directly in a single conversion, the AC–AC converter is comprised of two serial converters leading to an AC–DC–AC conversion. This article introduces, for the first time, a real direct single-stage AC–AC conversion electronic transformer. The single stage AC–AC converter is fabricated using a unique high efficiency topology, combined with the advantages of dual-stage power-quality protection. This single-stage AC–AC regulated electronic transformer is stabilized, controlled, protected, and can lock onto any line voltage (110 or 220 V) with a frequency of 45–65 Hz. Stabilization is achieved by fast pulse-width modulation technology, applied by two-way fast solid-state switches. The transformer is controlled by a 150 MHz digital signal processor and is fully protected against overcurrent and output short circuits. Our first stage transformer is a single-phase device with 5 kW power with an efficiency of better than 97% with one-tenth of the weight and volume of present conventional electromechanical transformers.

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Carbajal-Retana, Marco, Leobardo Hernandez-Gonzalez, Jazmin Ramirez-Hernandez, Juan Gerardo Avalos-Ochoa, Pedro Guevara-Lopez, Igor Loboda, and Luis Antonio Sotres-Jara. "Interleaved Buck Converter for Inductive Wireless Power Transfer in DC–DC Converters." Electronics 9, no. 6 (June 8, 2020): 949. http://dx.doi.org/10.3390/electronics9060949.

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The use of Inductive Wireless Power Transfer (IWPT) varies from low-power applications such as mobile phones and tablets chargers to high-power electric vehicles chargers. DC–DC converters are used in IWPT systems, and their design needs to consider the demand of high efficiency in the power transfer. In this paper, a DC–DC power converter for IWPT is proposed. Its topology uses a DC–AC converter in the transmitter circuit and an AC–DC converter in the receptor. The transmitter has an interleaved coupled-Buck converter that integrates two Buck converters connected to a half inverter bridge and a parallel resonant load. The control strategy implemented for the semiconductor switching devices allows two operating modes to obtain a sinusoidal output voltage with a low distortion that makes it suitable in high-efficiency power transfer systems. To obtain a DC output voltage, a full wave bridge rectifier is used in the receptor circuit. The proposed topology and the control strategy are validated with simulation and experimental results for a 15 W prototype.

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U EYA, CANDIDUS, CHINEDU TOBE, OMEJE LUKE, and BENJAMIN UGWU. "AN ENHANCED POWER DC-AC BUCK CONVERTER." DYNA ENERGIA Y SOSTENIBILIDAD 12, no. 1 (January 16, 2023): [12P.]. http://dx.doi.org/10.6036/es10634.

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ABSTRACT: This paper presents an enhanced power DC-AC buck converter.The main aim of this research paper is to ensure that the conventional H-bridge DC-AC buck converter is operated practically without delay time between the complementary power switches on the same leg.The enhanced version is realized by serially connecting sized inductor-capacitor-diode topology between the drains and the sources of the high sides of the H-bridge converters. The significant improvement in this kind of converter is that it offers short-circuit immune systems that are not obtainable in the traditional buck DC-AC converter and it triggers the complementary power switches without delay time. The power circuit is obtained by an amalgamation of two Y-closed-up topologies to form an H-bridge converter. The proposed system has a power rating of 3.25 kW, THD of 0.2717%, and pure sine waveforms of output voltage and currentof 311.00V and 10.63A under resistive loads. Under RL loads, it offers 3.25 kW, THD of 0.2807%, and pure sine waveforms of output voltage and current of 297.5V and 10.925A Keywords: DC-AC Converter, traditional, Buck, Enhanced, Power

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Youn, Sun-Jae, Young-Ho Kim, Yong-Chae Jung, and Chung-Yuen Won. "Soft Switching DC-DC Converter for AC Module Type PV Module Integrated Converter." Transactions of the Korean Institute of Power Electronics 18, no. 3 (June 20, 2013): 247–55. http://dx.doi.org/10.6113/tkpe.2013.18.3.247.

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Szczesniak. "Challenges and Design Requirements for Industrial Applications of AC/AC Power Converters without DC-Link." Energies 12, no. 8 (April 25, 2019): 1581. http://dx.doi.org/10.3390/en12081581.

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AC/AC converters that do not have a DC energy storage element, such as a matrix chopper and a matrix converter, are increasingly becoming alternatives to conventional two-stage AC/DC/AC converters and thyristor choppers. In such systems, the main DC-link capacitor does not exist, so the system provides more reliable operation and makes it possible to reduce the financial costs of its construction. It should be noted that AC/AC converters without an energy storage element in a form of DC-link capacitors have not been implemented on an industrial scale. The reasons involve technical aspects and cost components. The main aim of this paper is to present some of the challenges and selected design requirements for industrial applications of AC/AC high reliability power converters.

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Sundar, T., and S. Sankar. "Modeling and Simulation of Closed Loop Controlled Parallel Cascaded Buck Boost Converter Inverter Based Solar System." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 3 (September 1, 2015): 648. http://dx.doi.org/10.11591/ijpeds.v6.i3.pp648-656.

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This Work deals with design, modeling and simulation of parallel cascaded buck boost converter inverter based closed loop controlled solar system. Two buck boost converters are cascaded in parallel to reduce the ripple in DC output. The DC from the solar cell is stepped up using boost converter. The output of the boost converter is converted to 50Hz AC using single phase full bridge inverter. The simulation results of open loop and closed loop systems are compared. This paper has presented a simulink model for closed loop controlled solar system. Parallel cascaded buck boost converter is proposed for solar system.

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Eya, Candidus U., Ayodeji Olalekan Salau, and Stephen Ejiofor Oti. "High Performance DC-to-AC Converter Using Snubberless H-Bridge Power Switches and an Improved DC-to-DC Converter." International Journal of Circuits, Systems and Signal Processing 15 (April 8, 2021): 315–33. http://dx.doi.org/10.46300/9106.2021.15.36.

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This paper presents the analysis, modeling, simulation, and implementation of a high performance DC-to-AC (DC-AC) converter. The system comprises of a combination of DC power source, stress less DC-to-DC (DC-DC) voltage converter, two snubberless power switches, and control unit. The system is portable, has a two-stage input voltage transformation and amplification with no transformer and occupies less space unlike the classical two-stage inverter systems. In addition, the system produces a constant DC boosted voltage with less stress on both the source and DC storage capacitor which are not found in conventional converters. The proposed power electronic converter system produced the following results: pure sine voltage and current waveforms, total harmonic distortion (THD) of 4.294%, power output of 5740W, efficiency of 98.9%, power loss of 60W and fast dynamic response. The target areas of applications of the proposed converter are in medium and small scale industries.

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Tan, Zhong Yih, Nadia Mei Lin Tan, and Ida Suzana Hussain. "Theoretical Analysis of a Three-Phase Bidirectional Isolated DC-DC Converter Using Phase-Shifted Modulation." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 2 (June 1, 2018): 495. http://dx.doi.org/10.11591/ijpeds.v9.i2.pp495-503.

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A three-phase bidirectional isolated dc-dc converter consists of two six-pulse two-level active converters that enable bidirectional power flow by introducing a lag phase-shift angle of one converter with respect to the other converter. This paper explains the operating modes of a three-phase bidirectional isolated dc-dc converter in detail, taking into account the transfer of energy between the dc voltage sources and high-frequency ac inductances in the three-phase bidirectional isolated dc-dc converter. The power flow of the dc-dc converter is also examined based on the operating modes.

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Keshavarzi, Morteza Daviran, and Mohd Hasan Ali. "A Novel Bidirectional DC-DC Converter for Dynamic Performance Enhancement of Hybrid AC/DC Microgrid." Electronics 9, no. 10 (October 11, 2020): 1653. http://dx.doi.org/10.3390/electronics9101653.

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The conventional bidirectional DC-DC converter (BDC), which employs a half-bridge configuration, has some major disadvantages, including a controller designed for one direction with poor performance in the other direction, a bidirectional operation which does not have symmetrical voltage gain resulting in asymmetrical operation, and step-up and step-down switches that are simultaneously modulated, thereby increasing switching losses. To overcome these drawbacks, this paper proposes a new, nonisolated, DC-DC converter for the bidirectional power flow of battery energy storage applications in DC and hybrid microgrids (HMGs). The proposed converter uses two back-to-back Boost converters with two battery voltage levels, which eliminates step-down operation to obtain symmetric gains and dynamics in both directions. In discharge mode, two battery sections are in parallel connection at a voltage level lower than the grid voltage. In charge mode, two battery sections are in series connection at a voltage level higher than the grid voltage. Simulations demonstrate the efficacy of the proposed converter in the MATALB\Simulink environment. The results show that the proposed converter has promising performance compared to that of the conventional type. Moreover, the novel converter adds no complexity to the control system and does not incur considerable power loss or capital cost.

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Kang, Jin-Wook, Ki-Woong Shin, Hoon Lee, Kyung-Min Kang, Jintae Kim, and Chung-Yuen Won. "A Study on Stability Control of Grid Connected DC Distribution System Based on Second Order Generalized Integrator-Frequency Locked Loop (SOGI-FLL)." Applied Sciences 8, no. 8 (August 16, 2018): 1387. http://dx.doi.org/10.3390/app8081387.

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This paper studies a second order generalized integrator-frequency locked loop (SOGI-FLL) control scheme applicable for 3-phase alternating current/direct current (AC/DC) pulse width modulation (PWM) converters used in DC distribution systems. The 3-phase AC/DC PWM converter is the most important power conversion system of DC distribution, since it can boost 380 Vrms 3-phase line-to-line AC voltage to 700 Vdc DC output with various DC load devices and grid voltages. The direct-quadrature (d-q) transformation, positive sequence voltage extraction, proportional integral (PI) voltage/current control, and phase locked loop (PLL) are necessary to control the 3-phase AC/DC PWM converter. Besides, a digital filter, such as low pass filter and all pass filter, are essential in the conventional synchronous reference frame-phase locked loop (SRF-PLL) method to eliminate the low order harmonics of input. However, they limit the bandwidth of the controller, which directly affects the output voltage and load of 3-phase AC/DC PWM converter when sever voltage fluctuation, such as sag, swell, etc. occurred in the grid. On the other hand, the proposed control method using SOGI-FLL is able to do phase angle detection, positive sequence voltage extraction, and harmonic filtering without additional digital filters, so that more stable and fast transient control is achieved in the DC distribution system. To verify the improvement of the characteristics in the unbalanced voltage and frequency fluctuation of the grid, a simulation and experiment are implemented with 50 kW 3-phase AC/DC PWM converter used in DC distribution.

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Komarzyniec, Grzegorz, and Michał Aftyka. "Operating Problems of Arc Plasma Reactors Powered by AC/DC/AC Converters." Applied Sciences 10, no. 9 (May 9, 2020): 3295. http://dx.doi.org/10.3390/app10093295.

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The scientific objective was to investigate the cooperation of three-electrode plasma reactors with gliding arc discharge powered from multi-phase AC/DC/AC converters. In order to achieve the scientific and practical goal of the project, a test stand was designed and built, which included: a multi-electrode GlidArc type plasma reactor; a power-electronic AC/DC/AC converter, working as a source of voltage or current with regulated parameters of energy transferred to the discharge space; reactor operation diagnostics systems; and a process gas feeding and flow control system. The GlidArc Plasma Reactor has shown high sensitivity to changes in many electrical as well as gas chemical, gas-dynamic and mechanical parameters. The AC/DC/AC converter turned out to be a system sensitive to interference generated by the plasma reactor. It can be noticed that the operation of the reactor in certain conditions causes bigger interferences of the converter. However, it is difficult to systematise the influence of particular parameters of the reactor’s operation on the operation of the AC/DC/AC converter and vice versa due to mutual correlations of many parameters. The correct operation of a plasma reactor depends on the characteristics of the power supply system; on the other hand, the power supply system reacts to such an untypical receiver as a plasma reactor.

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Deshmukh, S. H., and Yasoda Rani. "Study on Performance Improvement of AC-DC Converter." International Journal of Engineering Research 3, no. 4 (April 1, 2014): 252–54. http://dx.doi.org/10.17950/ijer/v3s4/415.

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Cipriano dos Santos Júnior, Euzeli. "Configuration 5S: a bi-directional AC-DC converter." Eletrônica de Potência 17, no. 2 (May 1, 2012): 529–37. http://dx.doi.org/10.18618/rep.2012.2.529537.

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Ibrahim, A. Dawood. "Line Current Harmonic Reduction in AC-DC PWM Converter Using Genetic Algorithm." International Journal of Students' Research in Technology & Management 3, no. 7 (October 29, 2015): 431. http://dx.doi.org/10.18510/ijsrtm.2015.377.

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In this paper, AC/DC converters are widely used to get regulated power supply for battery charging and DC motor speed control. SCR converters are preferred in the field of High voltage DC energy transmission, superconductor magnetic energy storage, etc. However these converters have low power factor and also result in higher order harmonics.This paper proposes the application of Genetic algorithms (GAs) to find the switching angles for line current harmonic reduction in AC/DC type converter. Harmonic reduction is redrafted as an optimization problem and GA is applied.The harmonic elimination methods used in AC/DC converters are similar to those employed in PWM inverters or in AC choppers. The solution is obtained using genetic algorithm tool in MATLAB. The dual objectives of harmonic elimination and output voltage regulation are reframed as an optimization task and the switching instances are identified through the steps of GA.

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Lee, Hyeon-Seok, and Jae-Jung Yun. "Three-Port Converter for Integrating Energy Storage and Wireless Power Transfer Systems in Future Residential Applications." Energies 13, no. 1 (January 5, 2020): 272. http://dx.doi.org/10.3390/en13010272.

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This paper presents a highly efficient three-port converter to integrate energy storage (ES) and wireless power transfer (WPT) systems. The proposed converter consists of a bidirectional DC-DC converter and an AC-DC converter with a resonant capacitor. By sharing an inductor and four switches in the bidirectional DC-DC converter, the bidirectional DC-DC converter operates as a DC-DC converter for ES systems and simultaneously as a DC-AC converter for WPT systems. Here, four switches are turned on under the zero voltage switching conditions. The AC-DC converter for WPT system achieves high voltage gain by using a resonance between the resonant capacitor and the leakage inductance of a receiving coil. A 100-W prototype was built and tested to verify the effectiveness of the converter; it had a maximum power-conversion efficiency of 95.9% for the battery load and of 93.8% for the wireless charging load.

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Dhivya, K. T., and Dr K. Yasoda. "Implementation of ANN Controller Based Interleaved Hybrid Converter." International Journal for Modern Trends in Science and Technology 6, no. 6 (June 30, 2020): 178–81. http://dx.doi.org/10.46501/ijmtst060632.

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In existing method separate DC-DC and DC-AC converter topologies are required to supply DC and AC loads in which efficiency is poor. In the proposed work single converter topology of interleaved hybrid converter is used to provide simultaneous AC and DC output. Battery is used to supply load in absence of solar power. Artificial Neural Network control strategy is used to provide gating signals for the converter which improves the overall performance and stability of the system.AC and DC output from the interleaved hybrid converter are obtained using MATLAB/Simulink

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Wu, Tsai-Fu, Yen-Hsiang Huang, and Ting-Hung Lin. "Multi-Function High-Power Converters for Smart-Grid Applications." E3S Web of Conferences 69 (2018): 01007. http://dx.doi.org/10.1051/e3sconf/20186901007.

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High penetration of green energy has driven conventional utility grids into smart grids to accommodate dc appliances and various types of dc equipment, increasing effectiveness, efficiency, and resilience. In a smart grid, ac is harmonized with dc, and therefore, a multi-function converter is required to transfer power between ac and dc grids. This paper presents system configuration, operational principle and control of multi-function high-power converters for smart-grid applications. Simulated and experimental results from a 350 kVA converter are used to verify the feasibility of the proposed system configuration and control.

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Sanket, B., A. Pandian, and K. V. Siva Reddy. "Performance Analysis of various dc-link Converters for Photovoltaic based Ac Drives." International Journal of Engineering & Technology 7, no. 2.7 (March 18, 2018): 872. http://dx.doi.org/10.14419/ijet.v7i2.7.11085.

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This paper proposes a Performance analysis of DC to DC converters connected to the induction motor drive. The circuit analysis and operating principle of the proposed M-ZS Converter is presented and also characteristics of the different DC-DC are projected. A keen comparison is done between the proposed Modified Z-Source Converter with Boost Converter and Z-Source Converter and MPPT behavior of three converters at different irradiance level and different loading conditions are analyzed. By with the help of MATLAB Simulink, the simulation results are evaluated and presented.

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Journal articles on the topic 'AC-DC converter'

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