摘要
针对含有未知参数的励磁系统 ,提出了一种非线性自适应控制设计方法。通过递推方法得到了自适应控制策略 ,而且在控制策略中包含了对未知参数的动态估计 ,最后获得了多机系统的非线性自适应分散励磁控制策略的一般表达式。在控制策略中所有的变量都是可量测的 ,而且控制量只与本机组的状态量有关 ,与其他机组的状态量和输电网络的参数无关 ,因此控制策略具有分散性和适应性。在一个
This work develops a design approach to nonlinear adaptive control system with unknown parameters and applies it to excitation control of power systems.The adaptive control strategy is formed by recursive way.The characteristic of the controller is that which involves a dynamic estimator of parameters and a general expression of nonlinear adaptive decentralized excitation control strategy for multimachine systems is acquired.In the control strategy,all of the feedback variables are local measurements and the control variable is merely relevant to the state variables of this generator and has no direct relation with the state variables or outputs of other units.Moreover,the control law is independent of transmission network parameters. Simulation results of a 6- machine 2 2 - bus system manifest the validity of the nonlinear adaptive controllers.
出处
《电力系统自动化》
EI
CSCD
北大核心
2000年第21期7-10,共4页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目! (598372 70 )
国家重点基础研究专项经费资助项目 !(G1 9980 2 0 30 9)
国家重大科技项目!(97- 31
关键词
多机系统
非线性
自适应分散控制
电力系统
nonlinear adaptive control
unknown parameter
recursive method
dynamic estimator
state variabl
