基于扰动观测器的内置式PMSM无传感器控制

doi:10.16180/j.cnki.issn1007-7820.2020.01.011

Abstract

Abstract:

For the sensorless control of the IPMSM based on the observer in the two-phase stationary coordinate system, thereare problems including coupling of electrical angle estimation error, the cross-axis inductance and load torque, and complicated electrical angle compensation. In order to solve these problems,the sensorless control of IPMSM was carried out by using the original inductance parameters of the motor in the synchronous rotating coordinate system in this study. By establishing the vector mathematical model of PMSM, the influence of the original parameters of IPMSM on the estimation of back EMF was analyzed when the electrical angle estimation error existed. The conclusion of the method verified the theoretical feasibility of the method. The simulation was conducted by MATTSB/Simulink, and the targeted experiments were performed. The results showed that the proposed algorithm did not require electrical angle compensation, and could track the rotor position and speed of the motor under the disturbance condition.

Key words: interior permanent magnet synchronous motor, disturbanceobserver, sensorlesscontrol, phase-locked loop, synchronous rotating coordinate system, vector control.

CLC Number:

TM341

HUANG Song,LI Haijian,SHI Wei. Interior PMSM Sensorless Control Based on Disturbance Observer[J].Electronic Science and Technology, 2020, 33(1): 57-62.

Figures/Tables 6

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Table 1

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参数含义	取值	参数含义	取值
极对数p	4	额定电压V_DC/V	72
定子电阻R/Ω	0.011	额定电流I/A	57
d轴电感L_d/mH	0.3	额定转矩T/N.m	11
q轴电感Lq/mH	0.457	额定功率P/kW	4.2
转动惯量J/(kg.m²)	8.32×10^-3	额定转速n_base/rpm	2500

Interior PMSM Sensorless Control Based on Disturbance Observer

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