In:
Asian Journal of Control, Wiley, Vol. 22, No. 1 ( 2020-01), p. 192-203
Abstract:
This paper focuses on the problem of adaptive output feedback fault tolerant control for a nonlinear hydro‐turbine governing system. A dynamic mathematical model of the system is established, which aims to investigate the dynamic performance of the model under servomotor delay and actuator faults. Then, a fault estimation adaptive observer is proposed to achieve online real‐time diagnosis of system faults. Based on the online fault estimation information, an observer‐based adaptive output feedback fault tolerant controller is designed. Furthermore, under reasonable assumptions, the results demonstrate that the closed‐loop control system can achieve global asymptotic stability by Lyapunov function. Finally, the numerical simulation results are presented to indicate the satisfaction control effectiveness of the proposed scheme.
Type of Medium:
Online Resource
ISSN:
1561-8625
,
1934-6093
Language:
English
Publisher:
Wiley
Publication Date:
2020
detail.hit.zdb_id:
2438393-4
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