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Author:

Yu, Pan (Yu, Pan.) | Liu, Kang-Zhi (Liu, Kang-Zhi.) | Liu, Xudong (Liu, Xudong.) | She, Jinhua (She, Jinhua.) | Li, Xiaoli (Li, Xiaoli.)

Indexed by:

CPCI-S EI Scopus

Abstract:

Disturbances are inevitable in control practice. Many methods have been reported for disturbance rejection. Among them, equivalent-input-disturbance (EID) approach is effective for both matched and mismatched disturbances. However, since the disturbances are usually unknown, conventional methods cannot be used to analyze the control performance of disturbance rejection, especially the dynamic performance. In this paper, by treating the Luenberger observer as the role of an ideal system, an auxiliary variable, i.e., the output error betwween the disturbed system and the ideal system, is introduced to aid the disturbance-rejection performance analysis of EID approaches. The relation between the control performance and the output error are revealed. Then, a nonlinear EID estimator is constructed to speed up the disturbance-rejection control. The finite-time dynamic performance and uniformly ultimately bounded steady-state performance are guaranteed. Further, a design algorithm is developed for the NEID-based closed-loop control system. Finally, by comparing with a conventional linear EID-based method, simulation results illustrate the validity and superiority of the developed method.

Keyword:

finite time dynamic performance equivalent input disturbance (EID) disturbance rejection Disturbance estimation steady-state performance

Author Community:

  • [ 1 ] [Yu, Pan]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Xiaoli]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Yu, Pan]Beijing Univ Technol, Beijing Inst Artificial Intelligence, Beijing 100124, Peoples R China
  • [ 4 ] [Li, Xiaoli]Beijing Univ Technol, Beijing Inst Artificial Intelligence, Beijing 100124, Peoples R China
  • [ 5 ] [Liu, Kang-Zhi]Chiba Univ, Dept Elect & Elect Engn, Chiba 2638522, Japan
  • [ 6 ] [Liu, Xudong]Beijing Aerosp Automat Control Inst, Beijing, Peoples R China
  • [ 7 ] [She, Jinhua]Tokyo Univ Technol, Sch Engn, Hachioji, Tokyo 1920982, Japan

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Source :

ASME INTERNATIONAL CONFERENCE ON ADVANCED INTELLIGENT MECHATRONICS (AIM)

ISSN: 2159-6255

Year: 2022

Page: 915-920

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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