Fault Detection and Reliable Controller Design for Fractional-Order Systems Based on Dynamic Observer

Autor: He Li, Jie Li, Chao Deng, Yuanxin Li
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Actuators, Vol 12, Iss 6, p 255 (2023)
Druh dokumentu: article
ISSN: 2076-0825
DOI: 10.3390/act12060255
Popis: In this paper, the problem of the fractional-order linear systems’ simultaneous fault detection and reliable control (SFDC) in the finite frequency domain is investigated. A dynamic observer aimed at detecting faults is designed, which also generates state estimation signals. In particular, it is found that the proposed dynamic-observer-based controller can achieve a better H∞ performance. We derived the detector and controller’s design conditions to achieve H− fault sensitivity performance and H∞ interference attenuation performance in the limited frequency domain based on the generalized KYP lemma, which can achieve a better disturbance attenuation performance and fault sensitivity performance. Finally, the simulation results show the designed method’s effectiveness.
Databáze: Directory of Open Access Journals