| 基于高增益近似微分器的执行器故障重构 |
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| 引用本文： | 李焱.基于高增益近似微分器的执行器故障重构[J].徐州师范大学学报(自然科学版),2012,30(2):48-52. |
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| 作者姓名： | 李焱 |
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| 作者单位： | 淮安信息职业技术学院计算机与通信工程学院,江苏淮安,223003 |
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| 摘 要： | 针对一类伴有外界干扰的线性系统，探讨了执行器故障重构的问题．首先，使用高增益近似微分器得到输出导数的估计值．然后，构建一种未知输入观测器，实现对外界干扰和执行器故障解耦，可以渐近跟踪系统的状态．基于状态和输出导数的估计值，使用代数方法可以直接重构系统的执行器故障．仿真结果表明，所提出的方法是有效的．
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| 关 键 词： | 高增益观测器 近似微分器 执行器 未知输入 解耦 故障重构 |
Reconstruction of actuator faults based on high-gain approximate differentiators |
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| Li Yan.Reconstruction of actuator faults based on high-gain approximate differentiators[J].Journal of Xuzhou Normal University(Natural Science Edition),2012,30(2):48-52. |
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| Authors: | Li Yan |
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| Institution: | Li Yan(School of Computer & Telecommunication,Huaian College of Information Technology,Huaian 23003,Jiangsu,China) |
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| Abstract: | A method of reconstructing actuator faults for a kind of linear systems is considered.By using high-gain observers,the estimate of output derivative can be achieved.Then a reduced-order observer which can asymptotically track system state is constructed.Through employing the estimates of both the state and the derivative,the actuator faults can be reconstructed.The simulation results to a real model shows that the proposed method is effective. |
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| Keywords: | high-gain observer approximate differentiator actuator unknown input decoupling fault reconstruction |
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