电工技术学报2012，Vol.27Issue(12)：256-263,8.
基于星形接法的三相链式功率调节系统直流母线电压平衡控制
DC Bus Voltage Balancing Control of Three-Phase Cascade Power Regulation System with Star Connection
摘要
Abstract
Three-phase cascade H-bridge(CHB) power regulation system(PRS) can be used for the dynamic adjustment of active and/or reactive power in power grid.This system consists of many sets of DC bus.Because of the performance differences of the electrical storage unit and load imbalance in DC bus,the DC link voltages are imbalance among different phases,which makes derating operation or even failure.This paper proposes a DC voltage balance method based on the negative-sequence-voltage injection.The principle of the method is described and the basic algorithms are derived for the implementation.The strategy is also compared with the zero-sequence voltage injection based strategy.The simulation and experimental results verify validity of the method.关键词
直流母线电压平衡/负序电压注入/H桥级联变换器/功率调节系统Key words
DC link voltage balance/negative-sequence-voltage injection/cascade H-bridge converter/power regulation system分类
信息技术与安全科学引用本文复制引用
万承宽,杨耕,张桐硕,邬伟扬,赖成毅..基于星形接法的三相链式功率调节系统直流母线电压平衡控制[J].电工技术学报,2012,27(12):256-263,8.基金项目
国家自然科学基金重点资助项目 （）
