基于离散滑模控制的DSTATCOM的研究  

Optimized Controlling of the Distribution Static Synchronous Compensator Based on Quasi-Sliding Mode

作　　者：贾嘉斌[1] 袁佳歆[1] 姜芳芳[1] 陈国强[1] 陈柏超[1] 

机构地区：[1]武汉大学电气工程学院,武汉430072

出　　处：《高电压技术》2004年第8期50-51,55,共3页High Voltage Engineering

摘　　要：鉴于快速响应的配电网静止无功补偿器—DSTATCOM是改善配电网系统电能质量的有效方法 ,提出对DSTATCOM采用离散滑模控制 ,应用MATLAB对 10 / 0 .4kV配电网中的动态补偿进行仿真 ,并基于此研制出小容量DSTATCOM实验模型。仿真和实验证明 ,离散滑模控制策略简单易行 ,控制效果良好 ,在谐波畸变率大致相等的情况下 ,比其它控制策略更能极大地减小开关损耗。基于离散滑模控制的DSTATCOM可正确地补偿系统所需的无功功率 ,对改善电能质量可行有效。The fast response of the Distribution Static Compensator (DSTATCOM) makes it efficient solution for improving power quality in distribution systems. A new control strategy, quasi-sliding mode, is presented. By the means of MATLAB, some simulations in the DSTATCOM mode in the 10/0.4 kV distribution systems have made. Comparing with others control strategies, quasi-sliding mode can greatly decrease switching loss as far as possible. In the light of experiments and simulations, it is concluded that the quasi-sliding mode control principle not only can compensate the var of load demand but also have advantages of superiority and feasibility.

关 键 词：DSTATCOM 离散滑模控制 电能质量 

分 类 号：TM761.1[电气工程—电力系统及自动化]