摘要
通过对多输入多输出(MIMO)多变量反馈控制系统在某环节发生故障或失效时的系统稳定性分析,得出系统稳定性与其回差矩阵有关。提出了针对一类开环传递函数矩阵对象为本质稳定及解耦后仍是本质稳定时系统的冗余设计方法。通过控制律的重构,能有效解决环节发生故障或失效时系统稳定性的问题,达到对复杂控制系统实现容错控制的目的。仿真结果表明该冗余设计方法是可行的。
To analyze the stability of the system when a link breaks down or failure in the multiple-input,multiple-output（MIMO） multi-variable feedback control system.The relations for stability was obtained and the poor relationship of matrix returned.In design method,system redundancy was proposed.This method is essential for the stability of a class of objects outside the loop transfer function matrix,in the decoupling both before and after decoupling is an essentially stable object.Control law reconfiguration can effectively solve the problem of system stability in a link when it breaks down or fails.The purpose of achieving a fault-tolerant control of complex control systems is reached.The simulation results show that the redundancy method is feasible.
出处
《陕西理工学院学报（自然科学版）》
2011年第2期24-28,共5页
Journal of Shananxi University of Technology:Natural Science Edition
基金
陕西理工学院科研基金资助项目(SLGKY10-10)
关键词
多变量
稳定性
容错控制
冗余设计
multivariable
stability
fault tolerant control
redundancy design
