新型静止无功发生器的Fuzzy-PI控制  

Application of Fuzzy-PI control in ASVG

作　　者：姚舜[1] 罗安[1] 唐杰[1] 夏向阳[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电力科学与技术学报》2007年第2期43-47,共5页Journal of Electric Power Science And Technology

基　　金：国家高技术研究发展计划项目(863计划)(2004AA001032);湖南省教育厅科研项目(06C121)

摘　　要：论述ASVG的工作原理,根据控制原理设计ASVG的模糊PI(Fuzzy-PI)控制器.采用模糊控制器获得良好的动态性能,同时引入PI控制改善模糊控制器的静态性能,增强其鲁棒性.该控制器使系统在电流跟踪误差较大时比例控制占主导,误差减小速度较快,在误差减小到一定范围内时积分控制占主导,实现稳态无差.并且该控制器具有较强的自适应控制能力,增强了对电力系统稳定性的控制,具有满意的控制精度,易于实现数字控制,比传统的PI控制具有更好的控制效果.数字仿真验证了该控制方法的有效性和正确性.The principle of advanced static var generator （ASVG） is described in this paper, the Fuzzy-PI controller of ASVG is designed according to the control principle. It can get good dynamic performance when Fuzzy controller is used. The PI Control is added to improve the static performance of the controller and strengthen its robust. The P-control is dominating when the error is bigger, then the error is diminished and the speed is quicker. The I-control is dominating when the error is small and the system gets up to steady state and is no error. And it has bigger capability of adaptive control and it strengthens the control for stability of electric power system. The control result is better than ordinary PI control. The availability of this control method is verified by digital simulation.

关 键 词：ASVG 模糊PI控制器 自适应控制 电力系统稳定性 

分 类 号：TM761.1[电气工程—电力系统及自动化] TN713[电子电信—电路与系统]