无模型自适应广域阻尼控制设计方法  

Design of Model-Free Adaptive Wide Area Damping Controller

作　　者：李建[1] 赵艺[2] 陆超[2] 庞晓艳[1] 

机构地区：[1]四川省电力公司,四川省成都市610041 [2]电力系统及发电设备控制和仿真国家重点实验室(清华大学),北京市海淀区100084

出　　处：《电网技术》2014年第2期395-399,共5页Power System Technology

基　　金：国家重点基础研究发展计划项目(973项目)(2012CB215206);国家自然科学基金项目(51107061;51037002)~~

摘　　要：电力系统的运行方式和结构的时变特性越来越突出,传统广域阻尼控制器(conventional wide-area power system stabilizer,CWAPSS)由于参数固定,无法保证系统在不同运行状态下的控制效果。为此,文章采用无模型自适应控制(model free adaptive control,MFAC)算法实现了具有自适应功能的广域阻尼控制器的设计。首先讨论了MFAC算法的基本原理;然后通过分析比较WAPSS和MFAC算法参数之间的关系,给出了MFAC算法的参数设置方法;最后,通过四机两区系统的仿真验证了MFAC算法的有效性。仿真结果表明在系统结构发生变化时,无模型自适应广域阻尼控制器能够在线调整控制器参数,控制效果优于CWAPSS。The time-varying characteristics of power grid operating modes and structure become more and more conspicuous, and due to fixed parameters of traditional wide-area power system stabilizer （WAPSS） the control effect of power grid under various operating conditions could not be ensured. Utilizing model-free adaptive control （MFAC） algorithm the authors implement the design of adaptive wide-area damping controller. Firstly, basic principle of MFAC is discussed; then the relationship between parameters of WAPSS and those of MFAC are analyzed and compared and the method of parameter setting of MFAC algorithm is given; finally, through simulation of a 4-machine 2-area system the effectiveness of MFAC algorithm is validated. Simulation results show that during the change of power system structure the online adjustment of parameters of the model-flee adaptive wide-area damping controller can be implemented, and its control effect is better than WAPSS.

关 键 词：无模型自适应控制 阻尼控制 非线性 电力系统 

分 类 号：TM712[电气工程—电力系统及自动化]