电源学报2016，Vol.14Issue(5)：128-136,9.DOI:10.13234/j.issn.2095-2805.2016.5.128
链式STATCOM直流电容电压平衡控制
DC Capacitors Voltage Balancing Strategy for Cascaded STATCOM
摘要
Abstract
The impact of H-bridge parameter differences on the DC capacitors’ voltage is analyzed in this paper based on the static mathematical model of DC capacitors’ voltage of cascaded static synchronous compensator (STATCOM). According to the problem of DC capacitor’ voltage unbalance, a novel balancing strategy is proposed based on optimal allocation of pulse, which can solve the problem of DC capacitor ’ voltage unbalance caused by H-bridge parameter differences,and can make capacitors’ voltage balance quickly in the premise of no change of switching frequency of power component and output voltage,so as to improve the output performance of cascaded STATCOM and system reliability. The principle and characteristics of a novel balancing strategy based on optimal allocation of pulse are analyzed, and a prototype of 380 V, ± 10 kvar cascaded STATCOM had been developed to verify the theory analysis.关键词
链式静止同步补偿器/电容电压稳态数学模型/H桥参数差异/直流电容电压平衡策略Key words
cascaded static synchronous compensator (STATCOM)/static mathematical model of capacitor voltage/H-bridge parameter difference/DC capacitors’ voltage balancing strategy分类
信息技术与安全科学引用本文复制引用
杨波,赵汉卿,曾光,钟彦儒,李金刚,粟忠来..链式STATCOM直流电容电压平衡控制[J].电源学报,2016,14(5):128-136,9.基金项目
陕西省重点学科建设专项资金资助项目（105-5X1201） Project Supported by Shanxi Provincial Project of Special Foundation （）
