NDLI: Fault-tolerant servo systems using integrators with variable limits

Content Provider	IEEE Xplore Digital Library
Author	Suyama, K. Sebe, N.
Copyright Year	2014
Description	Author affiliation: Kyushu Inst. of Technol., Fukuoka, Japan (Sebe, N.) \|\| Tokyo Univ. of Marine Sci. & Technol. Etchujima, Tokyo, Japan (Suyama, K.)
Abstract	No effective controller design methods for achieving the tolerance against sensor and/or actuator failures have not yet been proposed for servo systems because it is difficult to deal with divergent signals such as ramp signals generated by integrators for servo performance. We obtained the key values for the limiting function implemented in limited integrators to behave effectively as a measure against divergent signals. In this paper, we propose the limiting function with variable limits for better fault-tolerance, i.e., for suppressing the fluctuation in transient responses in a normal loop immediately after failures. The obtained result succeeds in establishing the potential applicability of limited integrators to fault-tolerant servo systems.
Starting Page	1
Ending Page	8
File Size	188617
Page Count	8
File Format	PDF
ISBN	9781479948451
DOI	10.1109/ETFA.2014.7005076
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-16
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Servomotors Limiting Fault tolerance Fault tolerant systems Steady-state Actuators Noise
Content Type	Text
Resource Type	Article

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Fault-tolerant servo systems using integrators with variable limits