Dynamic extending nonlinear H_∞ control and its application to hydraulic turbine governor

作     者：MEI ShengWei GUI XiaoYang SHEN Chen LU Qiang 

作者机构：State Key Laboratory of Power System Department of Electrical Engineering Tsinghua University Beijing 100084 China State Key Laboratory of Power System Department of Electrical Engineering Tsinghua University Beijing 100084 China State Key Laboratory of Power System Department of Electrical Engineering Tsinghua University Beijing 100084 China State Key Laboratory of Power System Department of Electrical Engineering Tsinghua University Beijing 100084 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2007年第50卷第5期

页      面：618-635页

核心收录：

学科分类：07[理学] 08[工学] 

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 50525721, 50595411) Chinese State Power Corporation (Grant No. SPKJ008-05) 

主　　题：dynamic extending H∞ control, nonlinear system, robust control, hydraulic turbine governor 

摘      要：There exists a large class of nonlinear systems with uncertainties, such as hydrau- lic turbine governors, whose robust control problem is hard to solve by means of the existing robust control approaches. For this class of systems, this work pre- sents a dynamic extending H∞ controller via both differential geometry and H∞ the- ory. Furthermore, based on differential game theory, it has been verified that the proposed control strategy has robustness in the sense that the disturbance can be attenuated effectively because the L2-gain from the disturbance input to the regu- lation output signal could be reduced to any given level. Thirdly, a robust control strategy for hydraulic turbine governor is designed according to the proposed ex- tending H∞ control method, and has been developed into a real control equipment. Finally the field experiments are carried out which show clearly that the developed control equipment can enhance transient stability of power systems more effec- tively than the conventional controller.