Adaptive Compensation of Unknown Actuator Failures for Strict-feedback Systems | Zendy

Jianping Cai | Zendy; Lujuan Shen | Zendy

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Adaptive Compensation of Unknown Actuator Failures for Strict-feedback Systems

Author(s) -

Jianping Cai,

Lujuan Shen

Publication year - 2011

Publication title -

international journal of modern education and computer science

Language(s) - English

Resource type - Journals

eISSN - 2075-017X

pISSN - 2075-0161

DOI - 10.5815/ijmecs.2011.05.02

Subject(s) - computer science , compensation (psychology) , actuator , control theory (sociology) , control engineering , artificial intelligence , control (management) , psychology , psychoanalysis , engineering

Actuator failures are inevitable in practice especially in complex systems. The unknown failure may cause instability and catastrophic accidents during operation of control systems. A state feedback control scheme is proposed by using backstepping techniques. Compared with exist results, The uncertainties caused by total failure are seen as the bounded term and an estimator is designed to estimate its upper bound. The stability of closed loop system and output tracking performance can be guaranteed by our control law and corresponding update laws of uncertain parameters.

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