电工技术学报2017，Vol.32Issue(13)：100-108,9.DOI:10.19595/j.cnki.1000-6753.tces.151644
一种单级高频AC-AC变换器的低通输入滤波器的参数设计
Parameter Design of the Low-Pass Input Filter for a Single-StageHigh-Frequency AC-AC Converter
摘要
Abstract
Single-stage high-frequency AC-AC converter transforms line voltage into high frequency (generally larger than 100kHz) sinusoidal ac voltage. Since the power factor correction cell operates in DCM, a large number of high-order harmonic currents appear. Therefore, low-pass input filter is needed to reduce harmonic currents. The parameters of an input filter not only determine its filtering performance but also have effects on its input power factor. Thus how to determine these parameters above is very important. In this paper, the equivalent circuits of utility frequency component and switching frequency component are presented respectively. And then some related preset parameters are set adaptively according to the input and output conditions of the filter, meeting the demand of Energy Star on power factor. Ultimately, taken LC low pass filter as an example, the parameters design procedure of the low-pass input filter is presented in detail and a programmed design method is concluded. The simulations and experiments are conducted. The results have verified the correction of the theoretical analysis. The proposed design method for low-pass input filter is also applicable for the single-stage active power factor corrector. Moreover, it provides an important reference to design other type of low-pass input filter.关键词
单级高频AC-AC变换器/输入滤波器/功率因数Key words
Single-stage high-frequency AC-AC converter/input filter/power factor分类
信息技术与安全科学引用本文复制引用
罗全明,马坤,何青青,黄健,周雒维..一种单级高频AC-AC变换器的低通输入滤波器的参数设计[J].电工技术学报,2017,32(13):100-108,9.基金项目
国家自然科学基金资助项目(51577019). （51577019）
