A novel adaptive backstepping design of turbine main steam valve control  

作　　者：Liying SUN,Jun ZHAO (Key Laboratory of Integrated Automation of Process Industry,Ministry of Education,and School of Information Science and Engineering,Northeastern University,Shenyang Liaoning 110004,China) 

出　　处：《控制理论与应用（英文版）》2010年第4期425-428,共4页

基　　金：supported by the National Natural Science Foundation of China(No.60874024,90816028);the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.200801450019)

摘　　要：The problem of transient stability for a single machine infinite bus system with turbine main steam valve control is addressed by means of a novel adaptive backstepping method in this paper.The recursive design procedure of the proposed controller is much simpler than that of the existing controller based on conventional adaptive backstepping method.In the system,the damping coefficient is measured inaccurately,and the reactance of transmission line also contains a few uncertainties.A nonlinear robust controller and parameter updating laws are obtained simultaneously.The system does not need to be linearized,and the closed-loop error system is guaranteed to be asymptotically stable.The design procedure and simulation results demonstrate the effectiveness of the proposed design.The problem of transient stability for a single machine infinite bus system with turbine main steam valve control is addressed by means of a novel adaptive backstepping method in this paper.The recursive design procedure of the proposed controller is much simpler than that of the existing controller based on conventional adaptive backstepping method.In the system,the damping coefficient is measured inaccurately,and the reactance of transmission line also contains a few uncertainties.A nonlinear robust controller and parameter updating laws are obtained simultaneously.The system does not need to be linearized,and the closed-loop error system is guaranteed to be asymptotically stable.The design procedure and simulation results demonstrate the effectiveness of the proposed design.

关 键 词：Novel adaptive backstepping Nonlinear control Parameter uncertainty Steam valve control 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]