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Analysis of Soft-Switched High Frequency AC-AC Converter for Induction Motor Drive
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作者 马宪民 B.K.Bose 《International Journal of Mining Science and Technology》 SCIE EI 2000年第1期49-53,共5页
The systematic mathematical analysis of the high frequency soft-switched AC-AC converter is proposed for variable frequency induction machine load in this paper. Both PWM and square-wave modes of operation have been c... The systematic mathematical analysis of the high frequency soft-switched AC-AC converter is proposed for variable frequency induction machine load in this paper. Both PWM and square-wave modes of operation have been considered. The frequency relation and phase unbalance problem due to discrete time integral half-cycle switching has been discussed in the beginning. Then, generalized Fourier series have been derived for output voltage, output current and supply current in two modes.The analytical results help to understand tbe converter characteristics, design optimally a convertermachine system of arbitrary capacity considering the various trade-off parameters. 展开更多
关键词 high FREQUENCY soft-switch AC-AC converterS FOURIER SERIES
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Zero-voltage switching converter absorbing parasitic parameters for super high frequency induction heating 被引量:1
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作者 Zheng-shi WANG Hui-ming CHEN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2008年第4期564-571,共8页
This paper presents a novel mega-Hz-level super high frequency zero-voltage soft-switching converter for induction heating power supplies. The prominent advantage of this topology is that it can absorb both inductive ... This paper presents a novel mega-Hz-level super high frequency zero-voltage soft-switching converter for induction heating power supplies. The prominent advantage of this topology is that it can absorb both inductive and capacitive parasitic components in the converter. The switch devices operate in a zero-voltage soft-switching mode. Consequently, the high voltage and high current spikes caused by parasitic inductors or capacitors oscillation do not occur in this circuit, and the high power loss caused by high frequency switching can be greatly reduced. A large value inductor is adopted between the input capacitor and the switches, thus, this novel converter shares the benefits of both voltage-type and current-type circuits simultaneously, and there are no needs of dead time between two switches. The working principles in different modes are introduced. Results of simulation and experiments operated at around 1 MHz frequency verify the validity of parasitic components absorption and show that this convener is competent for super high frequency applications. 展开更多
关键词 Induction heating Super high frequency soft-switching converter Parasitic parameters
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Intelligent Fuzzy Based High Gain Non-Isolated Converter for DC Micro-Grids
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作者 M.Bharathidasan V.Indragandhi +3 位作者 Ramya Kuppusamy Yuvaraja Teekaraman Shabana Urooj Norah Alwadi 《Computers, Materials & Continua》 SCIE EI 2022年第5期4069-4084,共16页
Renewable electricity options, such as fuel cells, solar photovoltaic,and batteries, are being integrated, which has made DC micro-grids famous.For DC micro-grid systems, a multi input interleaved non-isolated dc-dcco... Renewable electricity options, such as fuel cells, solar photovoltaic,and batteries, are being integrated, which has made DC micro-grids famous.For DC micro-grid systems, a multi input interleaved non-isolated dc-dcconverter is suggested by the use of coupled inductor techniques. Since itcompensates for mismatches in photovoltaic devices and allows for separateand continuous power flow from these sources. The proposed converter hasthe benefits of high gain, a low ripple in the output voltage, minimal stressvoltage across the power semiconductor devices, a low ripple in inductorcurrent, high power density, and high efficiency. Soft-switching techniquesare used to realize that the reverse recovery issue of the diodes is moderated, the leakage energy is reused, and no new scheme is appropriated. Toreduce conduction losses, minimum voltage rating MOSFETs with a low ONresistance can be utilized. The converter can supply the required power fromthe load in the absence of one or two resources. Furthermore, due to the highgain of boosting voltage, the converter works in an Adaptive Neuro-FuzzyInference System (ANFIS). The operation principle, steady-state analysis ofthe proposed converter, is given and simulated utilizing MATLAB/Simulinksimulation software. 展开更多
关键词 Renewable energy sources DC micro-grid multi-input converter soft-switching techniques high gain
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软开关技术在通信电源中的应用
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作者 张颖超 侯振义 任天亮 《通信电源技术》 2002年第1期12-15,共4页
软开关技术是近年来国际国内电力电子领域的研究热点,其在通信电源中也将得到广泛应用。本文对几类最具代表性的软开关技术从理论到电路拓扑进行了论述,并指出了其优缺点及发展趋势。
关键词 软开关 通信电源 电力电子
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