中国电机工程学报Issue(6)：982-992,11.DOI:10.13334/j.0258-8013.pcsee.2014.06.021
平均电流控制的Boost PFC变换器最恶劣传导EMI频谱分析
Analysis of the Worst Conducted EMI Spectrum of the Average Current Controlled Boost PFC Converter
季清 1阮新波 1谢立宏 1叶志红2
作者信息
- 1. 航空电源航空科技重点实验室 南京航空航天大学，江苏省 南京市 210016
- 2. 光宝科技股份有限公司，江苏省 南京市 210019
- 折叠
摘要
Abstract
The average current controlled boost PFC converter may operate in full-continuous, part-discontinuous and full-discontinuous current modes in a half line cycle, and the conducted EMI spectra of the converter appear differences in these operation modes. Analyzing the worst conducted EMI spectra of the converter, the input voltage and load conditions for the different operation modes were discussed, and the waveform of the voltage across the drain and source of the power switch was analyzed. By analyzing the characteristic of the harmonic amplitudes of the voltage across the drain and source, it is revealed that, the worst case of the fundamental switching frequency harmonic of the conducted EMI appears in the full-continuous current mode, and the worst cases for the other harmonics appear under the light load conditions.关键词
传导电磁干扰/EMI 频谱/EMI 滤波器/功率因数校正/平均电流控制/Boost PFC变换器Key words
conducted electromagnetic interference (EMI)/EMI spectrum/EMI filter/power factor correction (PFC)/average current control/Boost PFC converter分类
信息技术与安全科学引用本文复制引用
季清,阮新波,谢立宏,叶志红..平均电流控制的Boost PFC变换器最恶劣传导EMI频谱分析[J].中国电机工程学报,2014,(6):982-992,11.
