Control for Isokinetic Exercise with External Disturbance

Xinwei Guo, Yixuan Sheng, Jinbao Liu, Honghai Liu and Bin Xu

Discrete Dynamics in Nature and Society, 2022, vol. 2022, 1-11

Abstract: Isokinetic exercise is considered as one of the most effective ways for rehabilitation and muscle strength enhancement. As rehabilitation equipment, the isokinetic exercise device assists isokinetic movement using a single fixed axis and relevant joint adapters, and it requires high stability and safety performances to cooperate with human. In this paper, a brushless DC motor (BLDCM) was adopted to make a study of isokinetic control. Fractional-order fuzzy PID (FOFPID) controller is an effective controller for the nonlinear system to realize isokinetic control according to reference speed and irregular disturbance (load torque). The model of the BLDCM and FOFPID controller system is built in MATLAB/Simulink to simulate the velocity response of the controller, and a comparison between the FOFPID controller and PID controller is made to verify the system stability.

Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnddns:2508568

DOI: 10.1155/2022/2508568

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