隔离型双级级联式大容量电池储能功率变换系统  

Control Strategy for Isolated Two-Stage Cascaded H-Bridge Converter Based Large-Scale Battery Energy Storage System

作　　者：陈强[1] 李睿[1] 蔡旭[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院风力发电研究中心,上海200240

出　　处：《电器与能效管理技术》2016年第18期45-49,55,共6页Electrical & Energy Management Technology

基　　金：国家科技支撑计划资助项目(2013BAA01B04)

摘　　要：当电池单元直接作为级联多电平变换器的电源时,存在二倍频脉动电流、共模电流等诸多问题。为此,在电池单元与H桥间插入隔离型DC/DC变换器,不仅能够解决上述问题,还能将电池单元与电网隔离,简化电池单元的设计与制造难度。研究了隔离型双级级联式电池储能系统的结构与控制策略,并在MATLAB/Simulink中进行了仿真验证。Second-order ripple current and common-mode current exist in cascoded H-bridge converter, when the battery modules are used as the DC power source directly. To solve the problems, an isolated DC/DC converter was placed between the H-bridge and battery modules. This two-stage battery energy storage system （BESS） can also isolate the battery modules and the power grid, which simplifies the design and manufacturing process. In this paper, the configuration and the control strategy of isolated two-stage cascaded H-bridge converter based BESS were described and verified with the simulation model in MATLAB/Simulink.

关 键 词：级联多电平变换器 电池储能系统 功率转换系统 双移相桥变换器 

分 类 号：TM464[电气工程—电器]