基于Hamilton能量理论的发电机汽门与励磁非线性稳定控制器的设计

NONLINEAR STABILIZING CONTROLLER DESIGN FOR THE STEAM-VALVING AND EXCITATION SYSTEM BASED ON HAMILTONIAN ENERGY THEORY

基于Hamilton能量理论,该文提出了一种新的非线性稳定控制器的设计方法。文中详细阐述了该方法的理论依据并给出了控制器的具体设计步骤。应用此方法设计了发电机汽门与励磁稳定控制器,仿真结果验证了理论分析的正确性与控制律的有效性。由于在控制器设计中未用到任何线性化方法,因而所得控制器充分利用了系统的非线性特性;考虑到Hamilton能量函数实际上是动态系统的Lyapunov函数,因此,该文也给出了一种从能量角度设计电力系统非线性稳定控制器的新方法。

Based on Hamiltonian energy theory, a novel nonlinear stabilizing controller design method is presented. The theoretical foundation and the design procedure are given in detail and its application to the steam-valving and excitation system is also included in this paper. Simulations verify the effectiveness of the controller. Since the controller design is based completely on the nonlinear dynamic system without any linearization, the nonlinear property of the dynamic system is well preserved and utilized in the controller. Since Hamiltonian function is an energy function, this paper also presents a new way for the nonlinear controller design based on energy theory. This project is supported by National Key Basic Research Special Fund of China (No. G1998020309) and National Natural Science Foundation of China (No.59837270).