中国电机工程学报2013，Vol.33Issue(3)：176-183,前插22,9.
功率变换器多开关状态下的传导电磁干扰预测
Conducted Electromagnetic Interference Prediction for Power Converters Under Variable Switching Conditions
摘要
Abstract
A new frequency-domain modeling approach based on IGBT module was proposed for predicting conducted electromagnetic interference (EMI) in power converter system under variable switching conditions. A practical approach is to build source models for a family of selected current levels covering the whole operating range. The relationship of each switching pulse in a switching cycle is analyzed, the whole conducted electromagnetic interference can be calculated by the sum of different zones. As a result, the whole line cycle is divided into four operating zones. Within each zone, the EMI noise can be calculated using one corresponding source model, and the noise for one line cycle can be calculated by combining the results of the four zones having four different source models but the same propagation path. Experiments and simulations show that the proposed approach can predict the electromagnetic interference noise accurately in a power converter for the entire conducted electromagnetic interference frequency range.关键词
功率变换器/传导电磁干扰/多开关状态/预测Key words
power converter/ conducted electromagnetic interference/ variable switching conditions/ prediction分类
信息技术与安全科学引用本文复制引用
肖芳,孙力..功率变换器多开关状态下的传导电磁干扰预测[J].中国电机工程学报,2013,33(3):176-183,前插22,9.基金项目
黑龙江省自然基金项目(E200625). （E200625）
