A Cross Coupling Control Strategy for Dual-Motor Speed Synchronous System Based on Second Order Global Fast Terminal Sliding Mode Control

IEEJ Transactions Elec Engng

et al. 2022

Self Cite

This paper is aimed at improve accuracy of angular position synchronization control of Permanent Magnet Synchronous Motor driving system. Traditional PID controller could not meet requirement due to poor dynamic characteristics. The Global Fast Terminal Sliding Mode Control (GFTSMC) has good ant-disturbance ability, could make system more robust and realize synchronization control of angular position. But due to error in load torque observation, system state convergence error will be caused, which will reduce the accuracy of synchronization. In this paper, fractional-order differentiation is used to replace the nonlinear part of GFTSMC, constructed Fractional Order Differentiation-GFTSMC (FOD-GFTSMC) controller to improve accuracy of synchronization. Theoretical analysis will be used to demonstrate that this control strategy could improve convergence accuracy of system state, reduces error of synchronization, and some experiments will be carried out to verify that this kind of controller has high synchronization accuracy, fast dynamic response ability and strong robustness.

Section: Design Of Gftsmc Referencementioning

confidence: 99%

“…Especially within GFTSMC, system state could converges to equilibrium state quickly and accurately [9], it could also realize control of rotor angular position by reasonably defining the system state equation. GFTSMC controller of PMSM applied in [15–17] verified it has advantages of fast response and strong anti‐disturbance ability.…”

Section: Introductionmentioning

confidence: 99%

Global Fast Terminal Sliding Mode Control Based on Fractional Order Differentiation for Angular Position Synchronization Control of PMSM

Shu

IEEJ Transactions Elec Engng

et al. 2022

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“…When establishing the mathematical model of PMSM, the following processing is carried out [27]: (1) assume that the distribution mode of rotor permanent magnet magnetic field in the breath space is sine wave, and the induced electromotive force in the stator armature winding is sine wave distribution; (2) ignore the iron loss and air gap in the magnetic field; (3) the motor is surface mounted PMSM. The rotor flux oriented control of PMSM with id = 0 is adopted to establish the dynamic mathematical model of PMSM in d-q coordinate system:…”

Section: Mathematical Model Of Pmsmmentioning

confidence: 99%

Global fast terminal sliding mode control strategy for permanent magnet synchronous motor based on load torque Luenberger observer

Zhu

IEICE Electron. Express

et al. 2021

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Aiming at the problems of slow response speed and chattering phenomenon in general sliding mode control of permanent magnet synchronous motor, a global fast terminal sliding mode control strategy is proposed to improve the response speed and the antiinterference ability of the system. A load torque Luenberger observer is designed, and the observed value is fed back to the global fast terminal sliding mode controller of permanent magnet synchronous motor control system in order to reduce the influence of external load disturbance. A permanent magnet synchronous motor experiments platform is built to verify the performance of the proposed control strategy and the effectiveness of the observer. The experimental results show that the load torque Luenberger observer can better observe the actual load torque and track the actual speed of the motor. The global fast terminal sliding mode control strategy improves the response speed of the motor and enhances the robustness of the system.

“…In the crosscoupling control strategy, the speed difference between the two motors is used as the compensation signal and fed back to the motor controller [16]. In order to improve the synchronization performance, fuzzy control algorithm, adaptive control-algorithm, neural network algorithm, and second-order sliding mode control algorithm are applied to the crosscoupling control strategy [17][18][19][20][21]. However, the crosscoupling control strategy is only suitable for the dual motor system.…”

Section: Introductionmentioning

confidence: 99%

Mean Deviation Coupling Control for Multimotor System via Global Fast Terminal Sliding Mode Control

Zhu

Advances in Mathematical Physics

et al. 2021

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In view of the shortcomings of the existing multimotor synchronous control strategy, a new method of mean deviation coupling control for multimotor system via global fast terminal sliding mode control is proposed. Firstly, the mathematical model of permanent magnet synchronous motor (PMSM) under a d - q reference frame is established. Next, based on the deviation coupling control, the deviation is calculated by the average speed, and the structure of the deviation coupling control strategy is optimized. The speed controller of the multimotor system is designed based on the global fast terminal sliding mode control (GFTSMC) algorithm to improve the synchronization accuracy of the system. In addition, a load torque Luenberger observer is designed to observe the load in real time. Then, the stability analysis of the controller is carried out by using the Lyapunov function. Finally, a four-motor experimental platform is built to verify the effectiveness of the proposed control strategy.