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题名:
Sensor fault tolerant control of a fast steering mirror system using adaptive PI-based sliding mode observer and hardware redundancy
作者: Wang, Hongju1,2,3; Bao, Qiliang1,2; Yang, Wenshu2; Liu, Zidong1,2; Tian, Jing1,2
刊名: Mathematical Problems in Engineering
出版日期: 2015
卷号: 2015, 页码:918456
学科分类: Closed loop systems - Electric power supplies to apparatus - Fault tolerance - Mirrors - Sliding mode control
DOI: 10.1155/2015/918456
通讯作者: Wang, Hongju
文章类型: 期刊论文
中文摘要: The aim of this paper is to present a sensor fault-tolerant control (FTC) scheme for a two-axis fast steering mirror (FSM) system with minimum power consumption and without changing the controller structure. In this paper, an adaptive PI-based sliding mode observer (APISMO) is adopted firstly to estimate the fault signal, which does not require any prior knowledge of the fault. The estimation is then used by the fault isolation logic to identify the fault. The redundant sensor would be powered up to replace the faulty one when faults occur. During the backup sensor booting up, for maintaining the normal performance of the closed-loop system approximately, a fault-free estimation of the position provided by the APISMO is used as feedback signal. Experimental studies on a prototype system show that the proposed APISMO can effectively reconstruct the fault signals even when the two primary position sensors are faulty simultaneously. Meanwhile, the effectiveness and performance of the proposed scheme have been verified. © 2015 Hongju Wang et al.
英文摘要: The aim of this paper is to present a sensor fault-tolerant control (FTC) scheme for a two-axis fast steering mirror (FSM) system with minimum power consumption and without changing the controller structure. In this paper, an adaptive PI-based sliding mode observer (APISMO) is adopted firstly to estimate the fault signal, which does not require any prior knowledge of the fault. The estimation is then used by the fault isolation logic to identify the fault. The redundant sensor would be powered up to replace the faulty one when faults occur. During the backup sensor booting up, for maintaining the normal performance of the closed-loop system approximately, a fault-free estimation of the position provided by the APISMO is used as feedback signal. Experimental studies on a prototype system show that the proposed APISMO can effectively reconstruct the fault signals even when the two primary position sensors are faulty simultaneously. Meanwhile, the effectiveness and performance of the proposed scheme have been verified. © 2015 Hongju Wang et al.
收录类别: SCI ; Ei
项目资助者: Advanced Research Foundation of Key Laboratory, Chinese Academy of Sciences [A09K002]
语种: 英语
WOS记录号: WOS:000356798500001
ISSN号: 1024-123X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/4173
Appears in Collections:光电工程总体研究室(一室)_期刊论文

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作者单位: 1. Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Mailbox 350, Chengdu, China
2. Institute of Optics and Electronics, Chinese Academy of Sciences, Mailbox 350, Chengdu, China
3. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Wang, Hongju,Bao, Qiliang,Yang, Wenshu,et al. Sensor fault tolerant control of a fast steering mirror system using adaptive PI-based sliding mode observer and hardware redundancy[J]. Mathematical Problems in Engineering,2015,2015:918456.
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