Online Inductance Identification and Sensorless Control of PMSM Based on a Novel High-Frequency Square-Wave Injection

Permanent magnet synchronous motors are subject to harsh and complex operating environments and have high requirements for low-speed stability. To address the problems of motor inductance distortion and the difficulty of sensorless control at low speed, this paper first analyzes the shortcomings of...

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Published inInternational Conference on Industrial Mechatronics and Automation (Online) pp. 1659 - 1664
Main Authors Xu, Shihan, Zhu, Yuan, Meng, Ling, Xu, Shihua, Yang, Kewen
Format Conference Proceeding
LanguageEnglish
Published IEEE 04.08.2024
Subjects
Accuracy
Automation
Hafnium
high-frequency square-wave injection
Inductance
inductance identification
Mechatronics
Permanent magnet motors
PMSM
Sensorless control
Online AccessGet full text
ISSN2152-744X
DOI10.1109/ICMA61710.2024.10633132

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Abstract Permanent magnet synchronous motors are subject to harsh and complex operating environments and have high requirements for low-speed stability. To address the problems of motor inductance distortion and the difficulty of sensorless control at low speed, this paper first analyzes the shortcomings of the conventional square-wave injection method. Then, in order to achieve d- and q-axis incremental inductance and cross-coupling inductance identification by the same injection and simultaneously realize sensorless control, a novel high-frequency voltage injection wave and the separation method of self-excited and coupled-excited currents are proposed. The verification is carried out on the simulation platform and the permanent magnet synchronous motor test bench. The results show that under acceleration and deceleration as well as current variation, inductance identification and angle tracking can be realized accurately and quickly.
AbstractList Permanent magnet synchronous motors are subject to harsh and complex operating environments and have high requirements for low-speed stability. To address the problems of motor inductance distortion and the difficulty of sensorless control at low speed, this paper first analyzes the shortcomings of the conventional square-wave injection method. Then, in order to achieve d- and q-axis incremental inductance and cross-coupling inductance identification by the same injection and simultaneously realize sensorless control, a novel high-frequency voltage injection wave and the separation method of self-excited and coupled-excited currents are proposed. The verification is carried out on the simulation platform and the permanent magnet synchronous motor test bench. The results show that under acceleration and deceleration as well as current variation, inductance identification and angle tracking can be realized accurately and quickly.
Author Zhu, Yuan
Xu, Shihua
Yang, Kewen
Meng, Ling
Xu, Shihan
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  organization: Tongji University,School of Automotive Studies,Shanghai,China,201804
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  givenname: Shihua
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  organization: Jiangling Motors Co., Ltd.,Jiangxi,China,330001
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  givenname: Kewen
  surname: Yang
  fullname: Yang, Kewen
  organization: Jiangling Motors Co., Ltd.,Jiangxi,China,330001
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Snippet Permanent magnet synchronous motors are subject to harsh and complex operating environments and have high requirements for low-speed stability. To address the...
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StartPage 1659
SubjectTerms Accuracy
Automation
Hafnium
high-frequency square-wave injection
Inductance
inductance identification
Mechatronics
Permanent magnet motors
PMSM
Sensorless control
Title Online Inductance Identification and Sensorless Control of PMSM Based on a Novel High-Frequency Square-Wave Injection
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