Descriptor Observers Design for Markov Jump Systems With Simultaneous Sensor and Actuator Faults
Descriptor Observers Design for Markov Jump Systems With Simultaneous Sensor and Actuator Faults
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DOI：
10.1109/tac.2018.2879765
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发表时间：
2019-08
影响因子：
6.8
通讯作者：
Hongyan Yang;Shen Yin
中科院分区：
文献类型：
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作者：
Hongyan Yang;Shen Yin
在设计马尔可夫跳变系统观测器的基础上，研究了马尔可夫跳变系统中传感器和执行器同时存在故障时的状态和故障估计问题。新观测器是一个降阶线性描述子。采用线性描述子降阶观测器与解耦技术，可以直接获得状态和传感器故障的估计，而无需进行辅助设计。与传统的MJS滑模观测器相比，该方法的优点是避免了滑动面切换问题。最后，以移动机械手为例验证了理论结果的有效性。
In this study, based upon designing a novel observer for Markovian jump systems (MJS), the state and fault estimation problem in the presence of simultaneous sensor and actuator faults in MJS is investigated. The novel observer is a linear descriptor reduced-order one. By employing the proposed linear descriptor reduced-order observer with decoupling technology, the estimation of state and sensor fault can be obtained directly without any supplementary design. Compared with the traditional sliding mode observers in MJS, the advantage is that the sliding surface switching problem is avoided. Finally, a practical example of mobile manipulators is given to illustrate the effectiveness of the theoretical results.