Vol. 101

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2021-12-23

Research on Efficiency Optimization Based on Permanent Magnet Synchronous Linear Motor

By Xingqiao Zhao, Cheng Wen, Mingwei Li, Qiankai Zhao, Kailin Lv, and Xin Wang
Progress In Electromagnetics Research Letters, Vol. 101, 147-155, 2021
doi:10.2528/PIERL21101305

Abstract

In recent years, permanent magnet synchronous linear motor (PMSLM) has gained tremendous momentum in industry, especially in the high-precision field. This is mainly because it has the advantages of small size, high control precision, reliable operation. However, due to the special structure of linear motor, the control strategy of rotating motor cannot be directly applied to PMSLM. Three control strategies for reducing loss and improving efficiency of PMSLM are proposed in this paper. Firstly, the mathematical model of PMSLM is established and the loss model and efficiency equation are established. Secondly, we adopt the loss model control strategies of id=0, maximum thrust current ratio and direct thrust are used to optimize the efficiency of the motor. Finally, simulation experiments are carried out for the three proposed optimization strategies, and the effects of initial speed and load on motor efficiency are analyzed. The effectiveness of the three loss model control strategies proposed in this paper is fully verified by the simulation results, and it is found that the loss model control strategy of id=0 has the most obvious efficiency improvement.

Citation


Xingqiao Zhao, Cheng Wen, Mingwei Li, Qiankai Zhao, Kailin Lv, and Xin Wang, "Research on Efficiency Optimization Based on Permanent Magnet Synchronous Linear Motor," Progress In Electromagnetics Research Letters, Vol. 101, 147-155, 2021.
doi:10.2528/PIERL21101305
http://jpier.org/PIERL/pier.php?paper=21101305

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