Abstract

The permanent magnet synchronous motor (PMSM) with dual-rotating rotors is a typical nonlinear multi-variable coupled system. It is sensitive to load disturbances and the change of interior parameters. The traditional proportional-integral (PI) controller is widely used in the speed control of a motor because of its simplicity; however, it cannot meet the requirements needed for high performance. In addition, when the loads of both of the rotors change, it is difficult to ensure that the system runs stably. With an aim to mitigate these problems, a method called master-slave motor control is proposed to guarantee the stability of the motor system in all cases. And then, a speed controller is designed to eliminate the influence of uncertain terms. The proposed control strategy is implemented both in simulations and in experiments. Through the analysis and comparison of the proportional-integral (PI) controller and the sliding-mode controller, the effectiveness of the proposed control strategy is validated.

Highlights

  • The permanent magnet synchronous motor (PMSM) has been widely utilized in different industry fields because of its superior power density, high torque, and high efficiency [1,2]

  • For the traditional PMSM, the solution for synchronism is that the electromagnetic torque must be equal to the load torque, and the rotor rotation speed must be synchronized with the magnetic field rotation speed

  • The directions of the two angular speeds are the same [4,16,17], namely that the to introduce the mathematical model of the motor, the speed controller designed based on sliding-mode control (SMC), and rotation directions for the two d-q reference frames in space are the same

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Summary

Introduction

The permanent magnet synchronous motor (PMSM) has been widely utilized in different industry fields because of its superior power density, high torque, and high efficiency [1,2]. The PMSM with dual-rotating rotors can be considered as having both permanent magnet motors connected in series. The PMSM with dual-rotating rotors be three-phase is supplied to the motor, both magnetic fields can develop and rotate in can opposite regarded as being two PM motors connected in series; motor and motor are named.

Mathematical Modeling and Control Methodology
Mathematical
Vector
Stability Analysis of the PMSM System
Using the Rotor Position to Select the Master Motor
Sliding-Mode Speed Controller Design
Simulation and Experimental Results
Photograph
Master
Dynamic
Conclusions
Full Text
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