带励磁限制环节混沌电力系统的励磁控制器设计  

Design of Excitation Controller for Chaotic Power System with Excitation Limit

作　　者：王江彬 刘崇新[1] WANG Jiangbin;LIU Chongxin(School of Electrical Engineering,Xi′an Jiaotong University,Xi′an 710049,China)

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《电工技术》2021年第10期109-112,共4页Electric Engineering

基　　金：国家自然科学基金资助项目(编号51877162)。

摘　　要：为带有励磁限制环节的电力系统动力学模型设计励磁控制器以抑制系统的混沌振荡。首先利用分岔图及相图对系统基本动力学行为进行分析,以此证实系统模型混沌行为的存在性。然后利用递归型滑模控制方法为混沌电力系统设计励磁控制器并给出控制输入的具体表达式。由于在控制输入中规避了复杂系统函数,从而规避了励磁限制环节对控制器设计的影响。最后利用数值仿真证实所设计控制器用于抑制电力系统混沌振荡的有效性。励磁控制能够为抑制电力系统混沌振荡提供一种实用的工程化方法。An excitation controller is designed for a dynamic model of power system with excitation limit to suppress its chaotic oscillation.Firstly,the bifurcation diagram and phase portrait are used to analyze the basic dynamic behavior to confirm the existence of chaotic behavior in the system model.Then,the recursive sliding mode control method is used to design excitation controller for the chaotic power system,and the specific expression of control input is given.Since complex system function is avoided in the control input,the influence of excitation limit on the controller design is completely avoided.Finally,the effectiveness of proposed controller to suppress chaotic oscillation in power system is verified by numerical simulation.Excitation control can provide a practical engineering method for suppressing chaotic oscillation in power system.

关 键 词：单机无穷大母线电力系统 励磁限制 混沌控制 递归型滑模控制 励磁控制 

分 类 号：TM712[电气工程—电力系统及自动化]