采用模糊滑模变结构控制策略的静止同步补偿器控制方法  

A Control Method for STATCOM Applying Fuzzy Sliding-Mode Variable-Structure Control Strategy

作　　者：单翀皞[1] 王奔[1] 邓家泽 钱碧甫[1] 赵茜茜[1] 

机构地区：[1]西南交通大学电气工程学院,四川省成都市610031 [2]广州市电力工程设计院有限公司,广东省广州市510220

出　　处：《电网技术》2010年第9期105-108,共4页Power System Technology

摘　　要：系统不平衡度较高时,静止同步补偿器(static synchronous compensator,STATCOM)提供的各相补偿电流相差较大,这往往会限制STATCOM的补偿范围。为此利用3组单相STATCOM对不平衡负载电流进行补偿,通过模糊滑模变结构控制方法对每相STATCOM进行单独控制,及时修正补偿电流,快速降低系统不平衡程度。仿真算例验证了该方法的有效性。When power system is in higher degree of unbalancedness, the compensating currents offered by different phases of static synchronous compensator （STATCOM） differ greatly, and such a differences will frequently restrain compensation range of STATCOM. To remedy this defect, it is proposed to use three single-phase STATCOM to compensate unbalanced load current, and each single-phase STATCOM is controlled by fuzzy sliding-mode variable-structure control strategy respectively to modify compensating current in time and rapidly decrease the degree of unbalancedness in power system. Results of simulation based on Matlab/Simulink verify the effectiveness of the proposed method.

关 键 词：静止同步补偿器 不平衡负载 无功补偿 模糊滑模变结构 

分 类 号：TM744[电气工程—电力系统及自动化]