| 基于模糊T-S自适应观测器的近空间飞行器故障诊断与容错控制 |
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| 引用本文： | 许域菲,姜斌,齐瑞云,高志峰.基于模糊T-S自适应观测器的近空间飞行器故障诊断与容错控制[J].东南大学学报(自然科学版),2009(Z1). |
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| 作者姓名： | 许域菲 姜斌 齐瑞云 高志峰 |
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| 作者单位： | 南京航空航天大学自动化学院; |
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| 基金项目： | 国家自然科学基金资助项目(90816023) |
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| 摘 要： | 提出了一种基于自适应观测器的故障诊断与容错控制策略,应用到近空间高超声速飞行器(NSHV)上处理执行器故障.NSHV是非线性、多变量和强耦合的系统,首先使用T-S模糊技术建模,基于T-S模型设计自适应故障诊断观测器(AFDO).然后定义AFDO和实际系统误差的范数作为残差来检测故障,采用自适应故障估计算法估计系统故障.基于所得故障信息,设计容错控制器(FTC)来补偿执行器的失效.通过求解线性矩阵不等式得到AFDO的增益矩阵,采用Lyapunov理论证明了误差系统的稳定性.最后,对高超声速飞行器的纵向模型进行算法验证,仿真结果表明了所提方法的有效性.
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| 关 键 词： | 故障诊断 容错控制 近空间高超声速飞行器 模糊T-S建模 自适应观测器 |
T-S fuzzy adaptive observer based fault diagnosis and fault tolerant control for near space vehicle |
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| Xu Yufei Jiang Bin Qi Ruiyun Gao Zhifeng.T-S fuzzy adaptive observer based fault diagnosis and fault tolerant control for near space vehicle[J].Journal of Southeast University(Natural Science Edition),2009(Z1). |
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| Authors: | Xu Yufei Jiang Bin Qi Ruiyun Gao Zhifeng |
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| Affiliation: | Xu Yufei Jiang Bin Qi Ruiyun Gao Zhifeng(College of Automation Engineering,Nanjing University of Aeronautics , Astronautics,Nanjing 210016,China) |
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| Abstract: | A fault diagnosis and fault-tolerant control scheme using adaptive observer is generalized to near space hypersonic vehicle(NSHV) to deal with actuator fault.The model of NSHV is nonlinear,multivariable and strong coupling,so T-S fuzzy technique is used for modeling,and an adaptive fault diagnosis observer(AFDO) is designed based on the T-S fuzzy model.Then a residual is defined as the norm of the output error between AFDO and actual system to detect fault,and adaptive estimation algorithm is proposed to es... |
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| Keywords: | fault diagnosis fault tolerant control near space hypersonic vehicle T-S fuzzy modeling adaptive observer |
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