一类时变关联大系统的分散模糊变结构控制

Decentralized fuzzy variable-structure control for uncertain large-scale interconnected systems

提出了一种适用于一类时变关联大系统的分散模糊变结构控制方法 .考虑到对于复杂系统 ,系统不确定性变化和关联变化的界很难预先确定下来 ,在分散变结构控制律中引入模糊规则来确定变结构切换控制的大小 .由于模糊规则的引入 ,明显减弱了一般分散变结构控制系统的抖颤问题 ,同时在设计控制器时不需要确切知道系统不确定变化的具体情况 ,简化了控制器设计 .仿真结果表明该控制方法是有效的 .

A decentralized variable- structure control for a class of uncertain large- scale interconnected systems is presented.For complex large- scale systems,the bounds of their variations of disturbances and interconnections are difficult to determine a prior,so fuzzy control laws are introduced to determine the value of variable- structure switching control. By using the fuzzy control laws.the chattering problem existing in commonly designed decentralized variable- structure systems can be subdued effectively,and the details of system uncertainties need not to be known while designing controllers.The control algorithm is essy for implementation.Numerical simulation results are given to illustrate its effectiveness.