Abstract
In this paper, a speed tracking and synchronization control approach is proposed for a multimotor system based on fuzzy active disturbance rejection control (FADRC) and enhanced adjacent coupling scheme. By employing fuzzy logic rules to adjust the coefficients of the extended state observer (ESO), FADRC is presented to guarantee the speed tracking performance and enhance the system robustness against external disturbance and parametric variations. Moreover, an enhanced adjacent coupling synchronization control strategy is proposed to simplify the structure of the speed synchronization controller through introducing coupling coefficients into the conventional adjacent coupling approach. Based on the proposed synchronization control scheme, an adaptive integral sliding mode control (AISMC) is investigated such that the chattering problem in conventional sliding mode control can be weakened by designing an adaptive estimation law of the control gain. Comparative simulations are carried out to prove the superiorities of the proposed method.
Highlights
The demands of control systems with large inertia and high power load are increasing in modern engineering systems [1]
Two controllers are proposed for the speed tracking and synchronous control of the multimotor system based on active disturbance rejection control (ADRC) and adaptive integral sliding mode control (AISMC), respectively
Numerical simulations are performed on a four-motor synchronization control system to evaluate the effectiveness of the proposed control scheme
Summary
The demands of control systems with large inertia and high power load are increasing in modern engineering systems [1]. An adjacent cross coupling strategy combining with sliding mode control [5] is designed for a multiple induction motor synchronization control system. A total sliding mode control method based on adjacent cross coupling structure in [11] is proposed for the multiple induction motors. Reference [13] combined an adaptive sliding mode technique with a ring coupling scheme to achieve rapid and accurate tracking and synchronization performance. Reference [14] designed a master-slave consensus tracking algorithm via observer for coordination control of multimotor systems, which could guarantee the synchronization precision. A total SMC is proposed to achieve speed tracking and synchronization for multimotor induction by employing adjacent cross coupling structure in [37]. (1) A fuzzy active disturbance rejection control (FADRC) is developed for multimotor systems to guarantee tracking performance and enhance the system robustness.
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