Study on a Double-Sided Permanent-Magnet Linear Synchronous Motor With Reversed Slots

Zhao, Jing; Mou, Quansong; Zhu, Congcong; Chen, Zhe; Li, Jian

doi:10.1109/tmech.2020.2987106

Cited by 28 publications

(8 citation statements)

References 39 publications

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“…Permanent magnet linear synchronous motors (PMLSM) have the advantages of high efficiency, large thrust, and fast response owing to their direct-drive mode [1,2,3]. Nowadays, it is widely used in precision machining, semiconductor packaging, visual inspection, and other precision motion fields [4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Adaptive PID controller of permanent magnet linear synchronous motor based on particle swarm neural network

Yang

Fan

2023

IEICE Electron. Express

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To improve the dynamic response performance and robustness of a permanent magnet linear synchronous motor (PMLSM)-based servo system, an adaptive proportional-integralderivative (PID) controller based on a particle swarm optimization neural network is proposed. First, according to the mechanical dynamics equation of the PMLSM, a mathematical model of the PMLSM was established. Second, an adaptive PID speed controller is designed to realize real-time control of the PMLSM. To improve the dynamic performance and stability of the controller, a particle swarm optimization neural network is used to dynamically tune the parameters. Finally, the effectiveness of the proposed controller was verified on the MATLAB/Simulink simulation platform. Compared to the traditional PID controller, the adaptive PID controller can improve the dynamic performance of the system more effectively.

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Section: Introductionmentioning

confidence: 99%

Adaptive PID controller of permanent magnet linear synchronous motor based on particle swarm neural network

Yang

Fan

2023

IEICE Electron. Express

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“…In recent years, due to the continuous progress of science and technology and the continuous development of industrial technology, the permanent magnet linear synchronous motor (PMLSM) has been widely used in various fields of social production, such as the vehicle manufacturing industry, intelligent robot control, manufacturing and production processes (Wen et al, 2020;Dong et al, 2021). The PMLSM has the characteristics of fast dynamic response and high control accuracy, giving it greater advantages in the control of the linear drive system than the rotating motor connected with a ball screw (Xu et al, 2020;Zhao et al, 2021). In the closedloop control system of the PMLSM, the control performance is often closely related to the accuracy and timeliness of the speed information of the feedback side mover.…”

Section: Introductionmentioning

confidence: 99%

A new sensorless control strategy of the PMLSM based on an ultra-local model velocity control system

Zhang

Feng

et al. 2022

Mech. Sci.

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Abstract. To improve the control performance and dynamic response of the permanent magnet linear synchronous motor (PMLSM), a new sensorless control strategy of the PMLSM with the ultra-local model velocity control system is designed in this paper. Firstly, a model-free speed controller (MFSC) is constructed based on the principle of the ultra-local model. Meanwhile, based on the traditional sliding-mode observer (SMO), the back-electromotive force (BEMF) in the SMO is optimized by the model reference adaptive system (MRAS) to improve the observed speed information of the PMLSM. This control strategy improves the dynamic response ability and stability of the PMLSM system. Compared with the traditional motor control strategy, this design gets rid of the dependence on mechanical sensors, improves the dynamic response ability of the PMLSM, and reduces the velocity tracking error. The superiority of the control system is verified by simulation and experiment. Compared with the traditional dual proportional–integral (PI) control system and SMO, the new control strategy can improve the dynamic response performance of the PMLSM, enhance the stability, and track the speed information of the PMLSM with low error to reduce the chatter.

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Section: Introductionmentioning

confidence: 99%

“…It more easily achieves high thrust density, high positioning accuracy, fast acceleration, low noise, and so on. Thus, PMLSM is widely used in numerical control machine tools, electromagnetic ejection, cordless elevators, rail transportation, and other fields [1][2][3][4].However, given the end force brought by the disconnection of the end and the cogging force in the motor's own tooth-slot structure, PMLSM generates large detent forces during operation, which affects its operating efficiency. Hence, the methods to weaken the detent force of the linear motor must be explored to improve the operating efficiency of PMLSM and ensure the stability of the linear motor during the operation.At present, the generation and weakening principle of the detent force have been extensively researched and reported.…”

mentioning

confidence: 99%

Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure

Lan

Chen

Xiao

et al. 2022

IET Electric Power Appl

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Given the existence of detent force, the positioning accuracy of permanent magnet linear synchronous motor (PMLSM) with an iron core worsens in its application in the field of the precision drive. To address this problem, a method is proposed to weaken the detent force of PMLSM with a V-shaped tooth-slot structure. The models of the detent force, including the cogging force and end force, are established theoretically. The analytical expressions of cogging force and end force are obtained by analysing the ripple rule of the motor. Then, the tooth-slot surface of the motor with the V-shaped tooth-slot structure conducts infinitesimal processing. The relationship between cogging force, end force, and the V-shaped depth of the V-shaped tooth-slot PMLSM is deduced, respectively, using the integration method. Furthermore, Ansoft finite element simulation software Maxwell module is used to compare the conventional PMLSM, V-shaped magnetic pole PMLSM, and V-shaped tooth-slot PMLSM. The comparison reveals that the V-shaped tooth-slot structure has the excellent characteristic of increasing the average value of thrust while reducing the ripple of thrust caused by detent force. Finally, prototype fabrication and experiments are conducted to verify the correctness and feasibility of the proposed method. K E Y W O R D SAC motors, design, electric machine analysis computing | INTRODUCTIONCompared with conventional rotary motors, a permanent magnet linear synchronous motor (PMLSM) can drive the load directly without a ball screw. It more easily achieves high thrust density, high positioning accuracy, fast acceleration, low noise, and so on. Thus, PMLSM is widely used in numerical control machine tools, electromagnetic ejection, cordless elevators, rail transportation, and other fields [1][2][3][4].However, given the end force brought by the disconnection of the end and the cogging force in the motor's own tooth-slot structure, PMLSM generates large detent forces during operation, which affects its operating efficiency. Hence, the methods to weaken the detent force of the linear motor must be explored to improve the operating efficiency of PMLSM and ensure the stability of the linear motor during the operation.At present, the generation and weakening principle of the detent force have been extensively researched and reported. The research on the weakening of detent force mainly includes two aspects: the optimisation of the motor structure and the improvement of the control strategy. The technology to minimise the detent force of PMLSM is shown in the tree diagram in Figure 1. From the point of view of the control strategy, the authors in Ref. [5][6][7] apply compensation control with the compensation windings to reduce the thrust and velocity ripple. The study in Ref. [8] focuses on the current control with a supertwisting algorithm to weaken the detent force. From the perspective of the motor structure, methods for weakening detent force can be mainly divided into threeThis is an open access article under the terms of the Crea...

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Study on a Double-Sided Permanent-Magnet Linear Synchronous Motor With Reversed Slots

Cited by 28 publications

References 39 publications

Adaptive PID controller of permanent magnet linear synchronous motor based on particle swarm neural network

Adaptive PID controller of permanent magnet linear synchronous motor based on particle swarm neural network

A new sensorless control strategy of the PMLSM based on an ultra-local model velocity control system

Detent force suppression of permanent magnet linear synchronous motor based on a V‐shaped tooth‐slot structure

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