A family of robust adaptive excitation controllers for synchronous generators with steam valve via Hamiltonian function method  

作　　者：Song XU Xiaorong HOU 

机构地区：[1]School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu Sichuan 611731, China [2]Faculty of Science, Ningbo University, Ningbo Zhejiang 315211, China

出　　处：《控制理论与应用（英文版）》2012年第1期11-18,共8页

基　　金：supported by the National Key Basic Research Project of China (No.2004CB318000);the National Natural Science Foundation of China (No.10571095)

摘　　要：Using the Hamiltonian function method, this paper proposes a family of robust adaptive excitation con- trollers for synchronous generators with steam valve control. First, a parameterization method of robust adaptive controllers is investigated for dissipative Hamiltonian systems. This method avoids solving Hamilton-Jacobi-Issacs inequalities. The parameters in the family of controllers thus obtained are determined by a locally positive semidefinite function, which has only 2n independent variables, twice as many as the one used to characterize the state feedback. Then, with the parame- terization method and the structural properties of dissipative Hamiltonian systems, a family of robust adaptive excitation controllers is designed for synchronous generators with steam valve control, disturbances and unknown parameters. Simu- lations illustrate the effectiveness and feasibility of the excitation control strategy proposed in the paper.Using the Hamiltonian function method, this paper proposes a family of robust adaptive excitation con- trollers for synchronous generators with steam valve control. First, a parameterization method of robust adaptive controllers is investigated for dissipative Hamiltonian systems. This method avoids solving Hamilton-Jacobi-Issacs inequalities. The parameters in the family of controllers thus obtained are determined by a locally positive semidefinite function, which has only 2n independent variables, twice as many as the one used to characterize the state feedback. Then, with the parame- terization method and the structural properties of dissipative Hamiltonian systems, a family of robust adaptive excitation controllers is designed for synchronous generators with steam valve control, disturbances and unknown parameters. Simu- lations illustrate the effectiveness and feasibility of the excitation control strategy proposed in the paper.

关 键 词：Pararneterization Robust adaptive controller Synchronous generator Steam valve control Hamiltonianfunction method 

分 类 号：O157.5[理学—数学] TP273.2[理学—基础数学]