电网电压不对称时配电静止同步补偿器的研究  

Research on Distribution Static Synchronous Compensator under Unsymmetrical Grid Voltage

作　　者：王辉云[1] 常鲜戎[1] 

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),河北保定071003

出　　处：《电气技术》2013年第12期24-28,共5页Electrical Engineering

摘　　要：电网电压不对称条件下配电网静止同步补偿器(DSTATCOM)采用传统检测方法提取的指令电流存在误差,导致其补偿性能变差。针对这个问题,研究了DSTATCOM的基本工作原理,提出一种新型指令电流检测方法,从指令电流检测、电流跟踪控制和直流侧电压稳定方面设计控制系统。一台10kVA的样机实验表明,DSTATCOM能够在电网电压不对称时对谐波和无功功率进行有效补偿。In the case of unsymmetrical grid voltage,there exist errors in the reference compensation current detected by traditional ip--iq method which affects the performance of DSTATCOM To overcome the drawback, this paper researchs the basic working principle of DSTATCOM, introduces a novel reference current detection method and then designs control system from reference current detection, current tracking control and DC voltage control. Results obtained by a 10kVA prototype experiment show that the DSTATCOM can compensate harmonic and reactive currents effectively under unsymmetrical grid votage.

关 键 词：配电静止同步补偿器 不对称电网电压 谐波抑制 无功补偿 

分 类 号：TM761.1[电气工程—电力系统及自动化]