基于H_(∞)优化控制的多机电力系统稳定性研究  

Research on Stability of Multi-machine Power System Based on H_(∞) Optimal Control

作　　者：陈华昊 CHEN Hua-hao(Haikou Power Supply Bureau,Hainan Power GridCompany Limited,Haikou570100,China)

机构地区：[1]海南电网有限责任公司海口供电局,海南海口570100

出　　处：《模糊系统与数学》2022年第3期50-62,共13页Fuzzy Systems and Mathematics

摘　　要：针对提高电力系统静态稳定性从而解决分布式电网并网后产生具有不确定性和偶然性的小干扰问题,本文采用多机电力系统模型的稳定性判据和H_(∞)优化控制问题进行研究,利用T-S模糊模型对多机电力系统模型进行建模,根据李雅普诺夫稳定性理论及H_(∞)优化控制理论,基于线性矩阵不等式(LMI),利用并行分布补偿(PDC)控制器的设计方法,证明了保证多机电力系统稳定的充分条件并实现电力系统的H_(∞)优化控制,给出这类非线性电力系统控制器的设计方法。最后采用MATLAB仿真软件对所求得稳定性判据进行验证,证实该结论的有效性。In order to improve the static stability of power system,the small disturbance problem with uncertainty and contingency is solved when the distributed power grid is integrated into themain network.Thestability criterionand H_(∞) optimal control problem of multi machine power system model are studied.T-S fuzzy model is used to model multi machine power system,according to Lyapunov stability theory and H_(∞) optimal control theory,based on linear matrix inequality(LMI),using the design method of parallel distributed compensation(PDC)controller,the sufficient conditions for the stabilityof multi machine power system are proved and the H_(∞) optimal control of power system is realized,the design method of this kind of nonlinear power system controller is given:Finally,matlab simulation software is used to verify the stability criterion,which proves the validity of the conclusion.

关 键 词：静态稳定 多机电力系统 模糊模型 H_(∞)优化控制理论 李雅普诺夫稳定性理论 

分 类 号：TM713[电气工程—电力系统及自动化]