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不确定离散时滞系统的D稳定鲁棒容错控制
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2009-07-07
世态薄凉
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针对离散一步时滞系统,研究了传感器失效后有一定性能保证的D 稳定容错控制问题, 给出一个对传感器失效具有完整性的D 稳定控制系统需满足的一个充分条件,进而讨论了参数不确定离散时滞系统的D稳定鲁棒容错控制问题,给出了D 稳定鲁棒容错控制系统的设计方法及步骤,并把相应结果推广到执行器失效的情况,最后用一个设计示例及仿真结果验证了这种设计方法的有效性.
关键词: 容错控制; D 稳定; 时滞系统; 鲁棒性; 离散系统
Abstract : D- stable fault- tolerant control problem is studied for discrete systems with a time delay , which can guarantee some performance after sensor failures . A sufficient condition for D- stable control systems possessing integrity against sensor failures is presented. Then the D- stable robust fault- tolerant control problem is studied for uncertain discrete time- delay systems . The design method of D- stable robust fault- tolerant control systems is given , and the results are extended to the situation of ac2 tuator failures . Finally , an illustrative example and simulation results are given to demonstrate the effectiveness of the proposed method.
Key words : fault- tolerant control ; D- stability ; time- delay systems ; robustness ; discrete systems
关键词: 容错控制; D 稳定; 时滞系统; 鲁棒性; 离散系统
Abstract : D- stable fault- tolerant control problem is studied for discrete systems with a time delay , which can guarantee some performance after sensor failures . A sufficient condition for D- stable control systems possessing integrity against sensor failures is presented. Then the D- stable robust fault- tolerant control problem is studied for uncertain discrete time- delay systems . The design method of D- stable robust fault- tolerant control systems is given , and the results are extended to the situation of ac2 tuator failures . Finally , an illustrative example and simulation results are given to demonstrate the effectiveness of the proposed method.
Key words : fault- tolerant control ; D- stability ; time- delay systems ; robustness ; discrete systems
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