Input side PFC and Output side Voltage variation with Closed loop AC-DC Converter
Abstract
In this paper closed loop control of a three-level integrated ac–dc converter is proposed. The proposed converter integrates the operation of the boost power factor correction and the three-level ac–dc converter. By the implementation of PI controller with PWM technique in closed loop, the switching sequence is under controlled condition and the output voltage of the proposed converter effectively increases. To improve the performance of the ac–dc converter, two bulk storage capacitors are adopted. Its excellent line regulation capability makes the converter suitable for universal input application. The converter is made to operate with two independent controllers an input controller that performs power factor correction and regulates the dc bus and an output controller that regulates the output voltage.
Index Terms— AC–DC power conversion; single-stage power factor correction (SSPFC); three-level converters.
Index Terms— AC–DC power conversion; single-stage power factor correction (SSPFC); three-level converters.
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PDFCopyright (c) 2015 Md Hakeem Baba, D. Subhani
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