全桥变流器共模干扰等效模型分析  

Analysis of frequency-domain equivalent model for common mode noise in full-bridge converter

作　　者：许珂[1] 汪泉弟[1] 安宗裕[1] 彭河蒙[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《电源技术》2013年第10期1824-1826,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金(51177183)

摘　　要：变流器的电磁兼容问题日趋严重,其共模干扰问题成为新的研究热点。建立了全桥变流器共模干扰的等效仿真模型。分析了模型的频域特性,讨论了关键寄生参数对共模干扰的影响。在150 kH z^30 M H z频段内计算出全桥变流器产生的共模电流,与实验结果进行了对比,结果基本一致,证明了该频域等效模型的准确性。The electromagnetic compatibility （EMC） of converters is increasingly serious, and the issues caused by common mode （ CM ）electromagnetic interference （ EMI ）have been a hotspot. A CM noise equivalent model for simulation of CM noise in Full-bridge converter was proposed. The frequency-domain characteristics of proposed model were analyzed, and how the crucial parasitic parameters impact on CM noise was discussed. The simulation was performed in the 150 kHz-30 MHz frequency band, and the simulated CM current spectra were compared with the actual experiments to verify the validity of the proposed model.

关 键 词：电磁兼容 全桥变流器 共模干扰 等效模型 频域分析 

分 类 号：TM46[电气工程—电器]