Title: Position sensorless control system of SPMSM based on high frequency signal injection method with passive controller

Authors: Yu Zhang; Jiahong Liu; Meilan Zhou; Hanying Gao

Addresses: School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China and Harbin Electrical Machinery Company Limited, Harbin, 150040, China and School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, 150001, China ' School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China ' School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China ' School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, China

Abstract: In this study, a high-frequency pulsed voltage signal is injected into the d axis of the synchronous rotating frame of a surface-mounted permanent magnet synchronous motor (SPMSM) with insignificant salient pole effects. Through detection and analysis of the high-frequency current response signal at the stator side, the rotor position and speed information can be extracted to achieve sensorless control of the motor. A passive controller with a port-controlled Hamiltonian dissipative (PCHD) structure is designed by using the principle of energy forming and the method of interconnection-damping configuration. A 2.2-kW SPMSM experimental platform is built for experimental verification. The simulation results show that when the motor is running at a low speed, the proposed pulse-induced high-frequency voltage signal injection method exhibits a higher accuracy of rotor position and speed estimation. The passive controller can suppress the fluctuation of the motor starting speed and demonstrates a better ability to resist load disturbance.

Keywords: SPMSM; surface-mounted permanent magnet synchronous motor; passivity-based; high-frequency injection; position sensorless control.

DOI: 10.1504/IJEHV.2022.125263

International Journal of Electric and Hybrid Vehicles, 2022 Vol.14 No.1/2, pp.112 - 133

Received: 09 Apr 2021
Accepted: 05 May 2021

Published online: 05 Sep 2022 *

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