一种可进行不平衡补偿的静止同步补偿器控制方法  

Control Method of STATCOM Compensated with Three-phase Unbalanced Load

作　　者：陈玉鑫[1] 伏祥运[1] 顾强[2] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001 [2]上海大众汽车有限公司,上海200333

出　　处：《黑龙江水专学报》2007年第4期75-77,共3页Journal of Heilongjiang Hydraulic Engineering College

摘　　要：提出了一种能够让STATCOM对三相不平衡负载进行补偿的控制方法。该方法以序分解和dq解耦为电流检测的基础,取消了传统检测方法中的滤波环节,简化了检测方法,提高了无功电流的检测速度和检测准确性,并对负载正负序无功电流和负载负序有功电流同时补偿,使补偿后的系统电流三相平衡。建立了STATCOM的模型,并在此基础上推导出对不平衡负载补偿的STATCOM无差拍控制模型。通过仿真验证了控制方法的有效性和可行性。The novel control method of STATCOM which could compensate three-phase unbalanced load is proposed. Based on sequence component decomposition and dq decoupling theories, this method could compensate both positive sequence and negative sequence reactive current at the same time, detection process is simplified, the system current achieves three-phase balance. STATCOM mathematical model is set up to derivative the deadbeat STATCOM control model for unbalanced load. Simulation results verify its validity and feasibility.

关 键 词：不对称 序分解 无差拍 d-q 静止同步补偿器 

分 类 号：TM933.1[电气工程—电力电子与电力传动]