电工技术学报2016，Vol.31Issue(14)：104-111,8.
链式储能系统共模电流的分析及抑制
Analysis and Suppression of Common-Mode Current for Storage System Based on Cascaded H-Bridge Converter
摘要
Abstract
Cascaded H-bridge converter is suitable for battery energy storage system. However, bulky batteries and long dc cables, which connect power modules with battery cabinets, introduce significant parasitic parameters into cascaded H-bridge battery energy storage system. As a result, large common-mode current emerges and endangers the safety of power devices. Firstly, this paper builds the simplified model of cascaded H-bridge converter and analyzes the common mode voltage. Then the common-mode current paths are analyzed and the peak value of common-mode current is estimated. The methods of common-mode current suppression for cascaded H-bridge battery energy storage system are discussed in the end. Simulation and experimental results verify the analysis.关键词
链式变换器/电池储能系统/共模电压/共模电流/EMI滤波器Key words
Cascaded H-bridge converter/battery energy storage system/common-mode voltage/common-mode current/EMI filter分类
动力与电气工程引用本文复制引用
陈强,李睿,高宁,蔡旭,陆志刚..链式储能系统共模电流的分析及抑制[J].电工技术学报,2016,31(14):104-111,8.基金项目
国家863智能电网重大专项（2011AA05A111）和国家自然科学基金（51307110）资助项目。 （）
