Novel Speed Observer-Based Sensorless Control Strategy Without Signal Injection for PMSMs Over Low-Speed Range

Yunshu Liu; Xiaodong Zhang; Bo Yang; Chao Gong; Jingfeng Wang; Xiaofeng Ding; Shuangxia Niu

doi:10.1109/TIE.2024.3522488

Novel Speed Observer-Based Sensorless Control Strategy Without Signal Injection for PMSMs Over Low-Speed Range

Yunshu Liu, Xiaodong Zhang, Bo Yang, Chao Gong, Jingfeng Wang, Xiaofeng Ding, Shuangxia Niu

Research output: Journal article publication › Journal article › Academic research › peer-review

1 Citation (Scopus)

Abstract

This article proposes a novel speed observer-based sensorless control strategy for permanent magnet synchronous motors (PMSMs) operating in the low-speed range. First, a stable sliding mode observer (SMO) is used to identify the motor's real-time speed and the rotor position is calculated through integration. Second, an innovative pre-positioning method is developed to obtain the initial rotor position at standstill. Unlike traditional high-frequency signal injection-based sensorless control, the proposed method is suitable for both interior and surface-mounted PMSMs, and it avoids the negative impacts of high-frequency signals on control accuracy and electromagnetic noise. Finally, experiment is conducted on a surface-mounted PMSM prototypes to validate the proposed techniques.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	IEEE Transactions on Industrial Electronics
DOIs	https://doi.org/10.1109/TIE.2024.3522488
Publication status	Published - 6 Jan 2025

Keywords

Low speed
permanent magnet synchronous motor (PMSM)
sensorless control
sliding mode observer (SMO)

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

More information

10.1109/TIE.2024.3522488

Cite this

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title = "Novel Speed Observer-Based Sensorless Control Strategy Without Signal Injection for PMSMs Over Low-Speed Range",

abstract = "This article proposes a novel speed observer-based sensorless control strategy for permanent magnet synchronous motors (PMSMs) operating in the low-speed range. First, a stable sliding mode observer (SMO) is used to identify the motor's real-time speed and the rotor position is calculated through integration. Second, an innovative pre-positioning method is developed to obtain the initial rotor position at standstill. Unlike traditional high-frequency signal injection-based sensorless control, the proposed method is suitable for both interior and surface-mounted PMSMs, and it avoids the negative impacts of high-frequency signals on control accuracy and electromagnetic noise. Finally, experiment is conducted on a surface-mounted PMSM prototypes to validate the proposed techniques.",

keywords = "Low speed, permanent magnet synchronous motor (PMSM), sensorless control, sliding mode observer (SMO)",

author = "Yunshu Liu and Xiaodong Zhang and Bo Yang and Chao Gong and Jingfeng Wang and Xiaofeng Ding and Shuangxia Niu",

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AU - Liu, Yunshu

AU - Zhang, Xiaodong

AU - Yang, Bo

AU - Gong, Chao

AU - Wang, Jingfeng

AU - Ding, Xiaofeng

AU - Niu, Shuangxia

PY - 2025/1/6

Y1 - 2025/1/6

N2 - This article proposes a novel speed observer-based sensorless control strategy for permanent magnet synchronous motors (PMSMs) operating in the low-speed range. First, a stable sliding mode observer (SMO) is used to identify the motor's real-time speed and the rotor position is calculated through integration. Second, an innovative pre-positioning method is developed to obtain the initial rotor position at standstill. Unlike traditional high-frequency signal injection-based sensorless control, the proposed method is suitable for both interior and surface-mounted PMSMs, and it avoids the negative impacts of high-frequency signals on control accuracy and electromagnetic noise. Finally, experiment is conducted on a surface-mounted PMSM prototypes to validate the proposed techniques.

AB - This article proposes a novel speed observer-based sensorless control strategy for permanent magnet synchronous motors (PMSMs) operating in the low-speed range. First, a stable sliding mode observer (SMO) is used to identify the motor's real-time speed and the rotor position is calculated through integration. Second, an innovative pre-positioning method is developed to obtain the initial rotor position at standstill. Unlike traditional high-frequency signal injection-based sensorless control, the proposed method is suitable for both interior and surface-mounted PMSMs, and it avoids the negative impacts of high-frequency signals on control accuracy and electromagnetic noise. Finally, experiment is conducted on a surface-mounted PMSM prototypes to validate the proposed techniques.

KW - Low speed

KW - permanent magnet synchronous motor (PMSM)

KW - sensorless control

KW - sliding mode observer (SMO)

UR - https://www.scopus.com/pages/publications/85214790499

U2 - 10.1109/TIE.2024.3522488

DO - 10.1109/TIE.2024.3522488

M3 - Journal article

AN - SCOPUS:85214790499

SN - 0278-0046

SP - 1

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JO - IEEE Transactions on Industrial Electronics

JF - IEEE Transactions on Industrial Electronics

ER -

Novel Speed Observer-Based Sensorless Control Strategy Without Signal Injection for PMSMs Over Low-Speed Range

Abstract

Keywords

ASJC Scopus subject areas

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