摘要
考虑静止无功发生器(static var generator,SVG)的非线性和能量耗散特性,基于系统模型的广义Hamilton系统实现,设计非线性控制器。论述了广义Hamilton系统及其实现问题。针对SVG的工作原理建立其非线性动态模型,依据系统模型特性,选取适当的结构矩阵和Hamilton函数,完成了系统的广义Hamilton实现。针对SVG模型的广义Hamilton实现,引用L_2干扰抑制控制方法,设计单负荷-无穷大系统中运行的SVG非线性控制器,并利用电力系统分析综合软件(PSASP)对所设计的控制器进行不同负载情况下的仿真,数字仿真结果表明了控制器有较好的补偿效果,并能够维持负载母线电压的稳定。
Considering nonlinear and energy dissipation characteristics of SVG, the nonlinear controller is designed based on generalized Hamihonian system realization for the model of SVG. The paper discusses the generalized Hamiltonian system and its realization, estab- lishes nonlinear dynamic model according.to the principle of SVG. Based on the characteristics of system model, the appropriate struc- ture matrix and function of Hamilton are selected and realization of the generalized Hamiltonian system is carried on. In accordance with the generalized Hamiltonian system of SVG, the l^per quotes control method of I^interference rejection, and designs nonlinear control- ler for SVG operating in one - load - infinite - bus system. Digital simulation results realized by PSASP show that designed controller of different load obtains better compensation effect and be able to maintain the stability of the bus voltage.
出处
《控制工程》
CSCD
北大核心
2013年第4期593-597,共5页
Control Engineering of China
基金
湖南省教育厅资助项目(09A025)
