Design and analysis of a singlephase lowfrequenc

Authors: MingKai Hou ChengHu Chen MingYang Cheng

Publish Date: 2016/04/25

Volume: 98, Issue: 3, Pages: 257-270

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Abstract

This paper focuses on the design and analysis of the singlephase LowFrequency Active Power Factor Correction LFAPFC circuit The LFAPFC circuit has several attractive features such as low electromagnetic interference low switching frequency and ease of implementation when compared with the HighFrequency Active Power Factor Correction circuit Moreover its performance is much better than that of the Passive Power Factor Correction circuit However few of the previous studies focus on determining the values of major parameters of the LFAPFC circuit and their corresponding performance To conduct an indepth study on the LFAPFC circuit this paper proposes a systematic design method based on analyzing the characteristics of a symmetric trapezoidal current waveform Using the proposed method output performance indices such as total harmonics distortion and power factor of the LFAPFC circuit can be estimated In addition the relationship among the output performance inductance and conduction parameters of the power switch is derived and investigated Using the proposed method designers can determine suitable values of conduction parameters and inductance for specific applications Computer simulations and real experiments are carried out to verify the effectiveness of the proposed method

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