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| 多变量未知非线性系统容错逆控制方法 | |
| 引用本文： | 李炜,程应峰,许德智. 多变量未知非线性系统容错逆控制方法[J]. 华中科技大学学报(自然科学版), 2011, 0(8): 114-118 |
| 作者姓名： | 李炜 程应峰 许德智 |
| 作者单位： | 兰州理工大学电气工程与信息工程学院;甘肃省工业过程先进控制重点实验室; |
| 基金项目： | 国家自然科学基金资助项目(60964003); 甘肃省教育厅高等学校研究生导师科研资助项目(050301); 兰州理工大学特色学术梯队基金资助项目 |
| 摘 要： | 针对传统的逆系统在设计上需要精确数学模型和逆模型的解析解的限制,提出一种新的逆系统容错设计方法.该方法仅对非线性不确定系统的可逆部分求逆,通过引入鲁棒滑模观测器,对不可逆部分及执行器故障进行在线估计,从而以补偿方式在线修正逆模型并调节故障,使其在数值上精确地逼近非线性不确定受控对象的逆模型.仿真结果表明:该方法不仅对无显式的多变量未知非线性不确定系统具有良好的控制效果,对执行器故障也有较好的容错效果. |
| 关 键 词： | 逆系统方法 非线性不确定系统 鲁棒滑模观测器 执行器故障 容错控制 |
Unknown nonlinear multivariable inverse control of fault tolerant |
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| Li Wei, Cheng Yingfeng Xu Dezhi. Unknown nonlinear multivariable inverse control of fault tolerant[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2011, 0(8): 114-118 | |
| Authors: | Li Wei Cheng Yingfeng Xu Dezhi |
| Affiliation: | Li Wei1,2 Cheng Yingfeng1 Xu Dezhi1(1 College of Electrical and Information Engineering,Lanzhou University of Technology,Lanzhou730050,China,2 Key Laboratory of Gansu Advanced Control for Industrial Process,Lanzhou 730050,China) |
| Abstract: | Method of inverse system for fault tolerance was presented,in which the method of nonlinear uncertain systems was the only part of the inverse reversible.After a robust sliding mode observer was introduced,the irreversible part and the actuator failures were estimated on-line.Thus modified inverse model was compensated and the faults were adjusted on-line,so that it accurately in numerical approximation on the non-linear uncertainty of the inverse model of the controlled object.Simulation results show that ... |
| Keywords: | inverse system method non-linear uncertain systems robust sliding mode observer actuator failures fault tolerance control |
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