用动态留数法确定非线性控制器的最佳配置地点  

Determination of Optimal Locations of Nonlinear Controllers Using Dynamic Residues Method

作　　者：吴俊勇[1] 

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《现代电力》2005年第6期1-4,共4页Modern Electric Power

基　　金：国家重点基础研究专项基金资助项目(G1998020309)

摘　　要：提出了一种动态留数法,对含有分散非线性控制器的多机电力系统的主导模态进行动态扫描,根据分散非线性控制器安装前后系统主导模态的变化来确定系统中非线性控制器的最佳配置地点。当在线应用本方法时,建议构造一种基于多Agent的电力系统智能非线性控制的体系结构。它是一个由协调层和执行层组成的多Agent系统(Multi-AgentSystem),协调层Agent采用“动态留数”法确定系统中非线性控制器的最佳配置地点,执行层Agent负责非线性控制器参数的优化和控制器的切换。一个10机系统的离线仿真结果表明,这种方法能有效地消除不稳定零动态特性,提高多机电力系统的暂态稳定性。This paper proposes a novel dynamic residues method, which determines the optimal locations of the nonlinear controllers. It also suggests a multi-agent based architecture, which is composed of the coordinating agent and the executing agents, with using this method online. The coordinating agent decides the optimal locations of the decentralized nonlinear controllers with the proposed “Dynamic Residues” approach, while the executing agents are responsible for the switching between the nonlinear control and the regular linear optimal control. Simulation results show that, the proposed method can eliminate effectively the potential unstable “Zero Dynamics” in the power systems with the decentralized nonlinear controls, and can improve the transient stability of the whole power systems to a great extent.

关 键 词：动态留数法 多AGENT系统 非线性控制 最佳位置选择 零动态特性 

分 类 号：TM712[电气工程—电力系统及自动化]