Sensor Fault Tolerant Control of a Fast Steering Mirror System Using Adaptive PI-Based Sliding Mode Observer and Hardware Redundancy
Joint Authors
Wang, Hongju
Bao, Qiliang
Yang, Wenshu
Liu, Zidong
Tian, Jing
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-20
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Wang, Hongju& Bao, Qiliang& Yang, Wenshu& Liu, Zidong& Tian, Jing. 2015. Sensor Fault Tolerant Control of a Fast Steering Mirror System Using Adaptive PI-Based Sliding Mode Observer and Hardware Redundancy. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1075057
Modern Language Association (MLA)
Wang, Hongju…[et al.]. Sensor Fault Tolerant Control of a Fast Steering Mirror System Using Adaptive PI-Based Sliding Mode Observer and Hardware Redundancy. Mathematical Problems in Engineering No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1075057
American Medical Association (AMA)
Wang, Hongju& Bao, Qiliang& Yang, Wenshu& Liu, Zidong& Tian, Jing. Sensor Fault Tolerant Control of a Fast Steering Mirror System Using Adaptive PI-Based Sliding Mode Observer and Hardware Redundancy. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1075057
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1075057