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Author:

Zuo, G. (Zuo, G..) | Zhou, J. (Zhou, J..) | Gong, D. (Gong, D..) | Huang, G. (Huang, G..)

Indexed by:

EI Scopus SCIE

Abstract:

Intelligent servo control significantly reduces the need to adjust control parameters, and is, therefore, widely used in robot joint control. However, existing intelligent servo control strategies for robot joints have problems of computational redundancy, limited prediction accuracy, and insufficient generalization capability. To solve these problems, this article proposes a servo control strategy for robot joints that is based on the incremental Bayesian fuzzy broad learning system (IBFBLS). First, we construct an intelligent servo control strategy with broad learning system on the basis of fuzzy rules to achieve good self-learning and generalization abilities. Second, the learning parameters of the control strategy are optimized by Bayesian inference to achieve precise joint servo control. Finally, the convergence of the control strategy is enhanced by combining it with Lyapunov theory to constrain the learning parameters of the proposed control strategy. The feasibility and superiority of the proposed control strategy are verified by simulation to compare it with existing intelligent servo control methods. In addition, experiments are conducted using robot joint test bed. Both the simulation and experiments verify that the proposed servo control strategy outperforms other servo control methods with respect to tracking accuracy, stability, and convergence. The root-mean-square error in servo control of robot joints was 0.012$\%$, which has been reduced by 55.56$\%$ compared with the current state of the art. IEEE

Keyword:

Learning systems Bayes methods intelligent servo control Bayesian inference Stability analysis Uncertainty Lyapunov theory Servomotors incremental broad learning system (IBLS) Robots fuzzy rules Servosystems

Author Community:

  • [ 1 ] [Zuo G.]Faculty of Information Technology, Beijing University of Technology, Beijing, China
  • [ 2 ] [Zhou J.]Faculty of Information Technology, Beijing University of Technology, Beijing, China
  • [ 3 ] [Gong D.]Faculty of Information Technology, Beijing University of Technology, Beijing, China
  • [ 4 ] [Huang G.]Faculty of Information Technology, Beijing University of Technology, Beijing, China

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Source :

ASME Transactions on Mechatronics

ISSN: 1083-4435

Year: 2023

Issue: 4

Volume: 28

Page: 1-9

6 . 4 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:19

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 5

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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