Research on TOGI‐EFLL flux observer for IPMSM sensorless control

Abstract For the purpose of enhancing the performance of interior permanent magnet synchronous motors (IPMSMs) sensorless control, a flux observer based on a third‐order generalized integrator with enhanced frequency‐locked loop (TOGI‐EFLL) is introduced in this paper. Compared with the traditional...

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Main Authors: Xue Hao, Yutao Luo
Format: Article
Language:English
Published: Wiley 2024-11-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12735
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author Xue Hao
Yutao Luo
author_facet Xue Hao
Yutao Luo
author_sort Xue Hao
collection DOAJ
description Abstract For the purpose of enhancing the performance of interior permanent magnet synchronous motors (IPMSMs) sensorless control, a flux observer based on a third‐order generalized integrator with enhanced frequency‐locked loop (TOGI‐EFLL) is introduced in this paper. Compared with the traditional second‐order generalized integrator with frequency‐locked loop (SOGI‐FLL), the proposed TOGI‐EFLL can effectively mitigate the direct current (DC) bias stemming from non‐ideal factors, such as the inverter non‐linearities and detection errors, without introducing additional parameters. Initially, the active flux observer model and the limitations of the conventional SOGI‐FLL are presented. Subsequently, the proposed flux observer based on TOGI‐EFLL has been intensively investigated. Furthermore, the design of the damping factor and the digital implementation of the algorithm are developed to ensure seamless integration into digital systems. Finally, the effectiveness of the proposed sensorless control strategy is validated through the comprehensive experimental results.
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publishDate 2024-11-01
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spelling doaj-art-8d8590a11ca64aeaa27ca8e94bd6940a2025-08-20T02:26:14ZengWileyIET Power Electronics1755-45351755-45432024-11-0117141806181910.1049/pel2.12735Research on TOGI‐EFLL flux observer for IPMSM sensorless controlXue Hao0Yutao Luo1The School of Mechanical and Automotive Engineering South China University of Technology Guangzhou ChinaThe School of Mechanical and Automotive Engineering South China University of Technology Guangzhou ChinaAbstract For the purpose of enhancing the performance of interior permanent magnet synchronous motors (IPMSMs) sensorless control, a flux observer based on a third‐order generalized integrator with enhanced frequency‐locked loop (TOGI‐EFLL) is introduced in this paper. Compared with the traditional second‐order generalized integrator with frequency‐locked loop (SOGI‐FLL), the proposed TOGI‐EFLL can effectively mitigate the direct current (DC) bias stemming from non‐ideal factors, such as the inverter non‐linearities and detection errors, without introducing additional parameters. Initially, the active flux observer model and the limitations of the conventional SOGI‐FLL are presented. Subsequently, the proposed flux observer based on TOGI‐EFLL has been intensively investigated. Furthermore, the design of the damping factor and the digital implementation of the algorithm are developed to ensure seamless integration into digital systems. Finally, the effectiveness of the proposed sensorless control strategy is validated through the comprehensive experimental results.https://doi.org/10.1049/pel2.12735AC motor drivesfrequency locked loopsobserverssensorless machine controlsynchronous motor drives
spellingShingle Xue Hao
Yutao Luo
Research on TOGI‐EFLL flux observer for IPMSM sensorless control
IET Power Electronics
AC motor drives
frequency locked loops
observers
sensorless machine control
synchronous motor drives
title Research on TOGI‐EFLL flux observer for IPMSM sensorless control
title_full Research on TOGI‐EFLL flux observer for IPMSM sensorless control
title_fullStr Research on TOGI‐EFLL flux observer for IPMSM sensorless control
title_full_unstemmed Research on TOGI‐EFLL flux observer for IPMSM sensorless control
title_short Research on TOGI‐EFLL flux observer for IPMSM sensorless control
title_sort research on togi efll flux observer for ipmsm sensorless control
topic AC motor drives
frequency locked loops
observers
sensorless machine control
synchronous motor drives
url https://doi.org/10.1049/pel2.12735
work_keys_str_mv AT xuehao researchontogiefllfluxobserverforipmsmsensorlesscontrol
AT yutaoluo researchontogiefllfluxobserverforipmsmsensorlesscontrol