Bonfring International Journal of Power Systems and Integrated Circuits

Online ISSN: 2277-5072 | Print ISSN: 2250-1088 | Frequency: 4 Issues/Year

Impact Factor: 0.651 | International Scientific Indexing(ISI) calculate based on International Citation Report(ICR)

A Fuzzy Based Soft Switching Converter for Power Factor Correction

K. Yamuna and S. Mutharasu

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Abstract:

This paper proposes a new single phase high power factor converter which features regulation by conventional Pulse Width Modulation (PWM) and soft commutation techniques. In conventional power factor correction method PWM and commutation techniques are separately used. In the proposed method Zero Current Switching (ZCS) and Zero Voltage Switching (ZVS) are combined with PWM technique to improve power factor which overcomes the drawback of voltage stress and current stress in conventional method. A separate fuzzy controller is designed to compare voltage and current to generate PWM pulses to the switches. The proposed power factor correction converter has been simulated using MATLAB simulink and power factor of 0.99 with sinusoidal current shape was obtained.

Keywords: Power Factor Correction (PFC), Zero Voltage Switching (ZVS), Zero Current Switching (ZCS), Pulse Width Modulation (PWM)

Volume: 2 | Issue: Special Issue on Communication Technology Interventions for Rural and Social Development

Pages: 35-38

Issue Date: February , 2012