电网技术
電網技術
전망기술
POWER SYSTEM TECHNOLOGY
2014年
2期
395-399
,共5页
李建%赵艺%陆超%庞晓艳
李建%趙藝%陸超%龐曉豔
리건%조예%륙초%방효염
无模型自适应控制%阻尼控制%非线性%电力系统
無模型自適應控製%阻尼控製%非線性%電力繫統
무모형자괄응공제%조니공제%비선성%전력계통
model-free adaptive control%damping control%nonlinear%power system
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。
電力繫統的運行方式和結構的時變特性越來越突齣,傳統廣域阻尼控製器(conventional wide-area power system stabilizer,CWAPSS)由于參數固定,無法保證繫統在不同運行狀態下的控製效果。為此,文章採用無模型自適應控製(model free adaptive control,MFAC)算法實現瞭具有自適應功能的廣域阻尼控製器的設計。首先討論瞭 MFAC 算法的基本原理;然後通過分析比較WAPSS和MFAC算法參數之間的關繫,給齣瞭 MFAC 算法的參數設置方法;最後,通過四機兩區繫統的倣真驗證瞭 MFAC 算法的有效性。倣真結果錶明在繫統結構髮生變化時,無模型自適應廣域阻尼控製器能夠在線調整控製器參數,控製效果優于CWAPSS。
전력계통적운행방식화결구적시변특성월래월돌출,전통엄역조니공제기(conventional wide-area power system stabilizer,CWAPSS)유우삼수고정,무법보증계통재불동운행상태하적공제효과。위차,문장채용무모형자괄응공제(model free adaptive control,MFAC)산법실현료구유자괄응공능적엄역조니공제기적설계。수선토론료 MFAC 산법적기본원리;연후통과분석비교WAPSS화MFAC산법삼수지간적관계,급출료 MFAC 산법적삼수설치방법;최후,통과사궤량구계통적방진험증료 MFAC 산법적유효성。방진결과표명재계통결구발생변화시,무모형자괄응엄역조니공제기능구재선조정공제기삼수,공제효과우우CWAPSS。
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-free adaptive wide-area damping controller can be implemented, and its control effect is better than WAPSS.