FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors

Since line-start synchronous permanent magnet motors (LSPMs) entered the market, they have attracted research interest toward counterpart induction motors of low power-ratings. This paper reports an investigation of line-start synchronous reluctance motors (LS-SynRMs). LS-SynRMs has not been investi...

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Main Authors: Un-Jae Seo, Dong-Jun Kim, Pil-Wan Han, Yon-Do Chun
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/24/11673
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author Un-Jae Seo
Dong-Jun Kim
Pil-Wan Han
Yon-Do Chun
author_facet Un-Jae Seo
Dong-Jun Kim
Pil-Wan Han
Yon-Do Chun
author_sort Un-Jae Seo
collection DOAJ
description Since line-start synchronous permanent magnet motors (LSPMs) entered the market, they have attracted research interest toward counterpart induction motors of low power-ratings. This paper reports an investigation of line-start synchronous reluctance motors (LS-SynRMs). LS-SynRMs has not been investigated as much as LSPMs have. A motor needs to maximize rotor saliency to achieve high efficiency and a high power-factor. This results in complicated rotor geometry because the rotor cage and multiple flux barriers share the same rotor space. This paper provides an approximate method based on steady state torque analysis by which to estimate the critical inertia of a LS-SynRM. A finite element analysis (FEA)-aided analytical approach to the approximation of steady state torque is proposed to replace the more typical approach based on equivalent circuit parameters. The critical inertia resulting from the proposed method is compared to the results obtained using the FEA.
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spelling doaj.art-196df02c0c314428bc3691c6be2929982023-11-23T03:36:32ZengMDPI AGApplied Sciences2076-34172021-12-0111241167310.3390/app112411673FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance MotorsUn-Jae Seo0Dong-Jun Kim1Pil-Wan Han2Yon-Do Chun3Electric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, KoreaElectric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, KoreaElectric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, KoreaElectric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, KoreaSince line-start synchronous permanent magnet motors (LSPMs) entered the market, they have attracted research interest toward counterpart induction motors of low power-ratings. This paper reports an investigation of line-start synchronous reluctance motors (LS-SynRMs). LS-SynRMs has not been investigated as much as LSPMs have. A motor needs to maximize rotor saliency to achieve high efficiency and a high power-factor. This results in complicated rotor geometry because the rotor cage and multiple flux barriers share the same rotor space. This paper provides an approximate method based on steady state torque analysis by which to estimate the critical inertia of a LS-SynRM. A finite element analysis (FEA)-aided analytical approach to the approximation of steady state torque is proposed to replace the more typical approach based on equivalent circuit parameters. The critical inertia resulting from the proposed method is compared to the results obtained using the FEA.https://www.mdpi.com/2076-3417/11/24/11673Super Premium Efficiencyline start motorcritical inertiaSynRMIE4
spellingShingle Un-Jae Seo
Dong-Jun Kim
Pil-Wan Han
Yon-Do Chun
FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors
Applied Sciences
Super Premium Efficiency
line start motor
critical inertia
SynRM
IE4
title FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors
title_full FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors
title_fullStr FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors
title_full_unstemmed FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors
title_short FE-Aided Synchronization Analysis of Line-Start Synchronous Reluctance Motors
title_sort fe aided synchronization analysis of line start synchronous reluctance motors
topic Super Premium Efficiency
line start motor
critical inertia
SynRM
IE4
url https://www.mdpi.com/2076-3417/11/24/11673
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AT yondochun feaidedsynchronizationanalysisoflinestartsynchronousreluctancemotors