中国电机工程学报Issue(18)：2863-2872,10.DOI:10.13334/j.0258-8013.pcsee.2014.18.001
三相电压型ZCT PWM变换器的效率分析与实验研究
Efficiency Analysis and Experimental Study of Three-phase Voltage Source ZCT PWM Converters
摘要
Abstract
This paper gave thorough analysis on a zero current transition (ZCT) soft-switching technology in three-phase voltage source PWM converters. Based on the mathematical derivation and experimental verification, it can be proved that the ideal soft-switching transition is hard to be achieved because of the impact of diode reverse recovery and power device's junction capacitance, especially in high power applications. The research shows that, although the switching losses of the main power devices are reduced by using the ZCT soft-switching technology, several diode reverse recovery losses are added, and the overall efficiency are associated with the power device's junction capacitance and the diode recovered charge.关键词
零电流开关/软开关/二极管反向恢复/结电容/开关损耗/功率器件Key words
zero current transition (ZCT)/soft-switching/diode recovered charge/junction capacitance/switching losses/power device分类
信息技术与安全科学引用本文复制引用
周飞,金新民,姚修远,童亦斌,吴学智..三相电压型ZCT PWM变换器的效率分析与实验研究[J].中国电机工程学报,2014,(18):2863-2872,10.基金项目
“十一五”国家科技支撑计划重大项目(2007BAA12B04)。Key Project of the National Eleventh-Five Year Research Program of China (2007BAA12B04) （2007BAA12B04）
