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Position Sensorless Control System of Permanent Magnet Synchronous Linear Motor Based on Sliding Mode Observer with an Improved Phase-Locked Loop

Jin Zhang1, Youliang Tang1, Feng Yu2,*
1 Department of Mechanical and Electrical Engineering, Suqian College, Suqian, 223800, China
2 School of Electrical Engineering, Nantong University, Nantong, 226019, China
* Corresponding Author: Feng Yu. Email:

Energy Engineering 2021, 118(4), 1083-1094. https://doi.org/10.32604/EE.2021.014482

Received 30 September 2020; Accepted 16 November 2020; Issue published 31 May 2021

Abstract

In this paper, position sensorless control system of permanent magnet synchronous linear motor (PMSLM) based on sliding mode observer (SMO) with an improved phase-locked loop (PLL) is studied. Firstly, according to the mathematical model, a SMO is designed for sensorless control PMSLM drive. Thereafter, an improved PLL is proposed to tackle the imperfection of data overflow existed in the traditional PLL. The designed SMO incorporating with the improved PLL can be effectively suppress the pulsation of the estimated position and hence the chattering of the derived electrical angular velocity. At last, simulated and experimental results are presented to verify the effectiveness and feasibility of the position sensorless control system.

Keywords

Position sensorless; PMSLM; SMO; PLL

Cite This Article

Zhang, J., Tang, Y., Yu, F. (2021). Position Sensorless Control System of Permanent Magnet Synchronous Linear Motor Based on Sliding Mode Observer with an Improved Phase-Locked Loop. Energy Engineering, 118(4), 1083–1094.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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