摘要
基于广义Hamilton理论,提出将非线性微分-代数系统表示为一种改进的Hamilton系统的实现方法。通过重构结构矩阵,对所提系统的Hamilton函数进行能量整形,给出了镇定控制器的设计方法。以此为基础,研究了结构保留多机电力系统的Hamilton实现问题,运用能量整形方法,提出了可作为系统Lyapunov函数的Hamilton能量函数,并设计了可镇定该系统的励磁控制器。仿真结果证明了所提方法和控制策略对提高电力系统暂态稳定的有效性。
Based on generalized Hamiltonian theory,this paper proposes the realization method of expressing the nonlinear differentia-algebraic system as an improved Hamiltonian system.The total energy of the Hamiltonian function of the presented system is shaped via reconfiguration of structure matrixes,and the design method of stabilizing controller is given.Based on the above,the Hamiltonian realization for structure preserving multi-machine power systems is studied.The Hamiltonian energy function,which can be used as a system Lyapunov function,is presented via the approach of energy shaping.Furthermore,nonlinear excitation controller is designed,which can stabilize the multi-machine power systems.The simulation results verify that the proposed method and control strategy are effective in enhancing transient stability of the system.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第5期45-50,共6页
Power System Protection and Control
