| 不确定非线性时滞切换系统的鲁棒容错控制 |
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| 引用本文： | 王立敏,孙常春,刘玉忠,孙玉敏.不确定非线性时滞切换系统的鲁棒容错控制[J].沈阳师范大学学报(自然科学版),2006,24(2):136-139. |
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| 作者姓名： | 王立敏 孙常春 刘玉忠 孙玉敏 |
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| 作者单位： | 1. 沈阳师范大学,数学与系统科学学院,辽宁,沈阳,110034
2. 沈阳航空职业技术学院,辽宁,沈阳,110034 |
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| 基金项目： | 沈阳师范大学校科研和教改项目 |
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| 摘 要： | 研究了一类结构参数不确定性和未知非线性扰动的非线性时滞切换系统的鲁棒容错控制问题.利用凸组合技术,设计出状态反馈控制器和相应的切换策略,使得闭环系统是全局渐近稳定的.同时当系统的执行器失效时,通过预先给定的失效集,对于所有发生在给定失效集的执行器失效的情况下,使得闭环系统均是全局渐近稳定的.最后通过仿真算例验证了所设计方法的可行性和有效性.
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| 关 键 词： | 非线性时滞切换系统 凸组合 鲁棒控制 容错控制 执行器失效 |
| 文章编号： | 1673-5862(2006)02-0136-04 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005年10月10 |
Robust Fault-Tolerant Control for Uncertain Time-delay Switched Nonlinear Systems |
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| WANG Li-min,SUN Chang-chun,LIU Yu-zhong,SUN Yu-min.Robust Fault-Tolerant Control for Uncertain Time-delay Switched Nonlinear Systems[J].Journal of Shenyang Normal University: Nat Sci Ed,2006,24(2):136-139. |
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| Authors: | WANG Li-min SUN Chang-chun LIU Yu-zhong SUN Yu-min |
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| Institution: | 1. School of Mathematics and Systems Science, Shenyang Normal University, Shenyang 110034, China; 2. Shenyang Aeronautic Vocational and Technical College, Shenyang 110034, China |
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| Abstract: | In this paper,the problem of robust fault-tolerant control for a class of uncertain time-delay switched nonlinear systems with structural parameters uncertainties and unknown nonlinear disturbance is studied.Based on convex combination technique,state feedback controllers and a switching law are designed to make systems be globally asymptotically stable.Under the circumstance of actuator failures,a pre-specified failure set of actuators is introduced and the closed-loop systems are shown to be asymptotically stable for all possible actuator failures.At last,simulation results verified the feasibility and validity of the designed method. |
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| Keywords: | time-delay switched nonlinear systems convex combination robust control fault-tolerant control actuator failure |
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