Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions

Permanent magnet synchronous machines (PMSMs) are widely used in electric vehicles due to their high power density, high efficiency, etc. Core losses account for a significant component of the total loss in PMSMs. Therefore, it is necessary to carefully consider it when designing PMSMs according to...

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Main Authors: Guohui Yang, Shuo Zhang, Chengning Zhang
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/20/7232
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author Guohui Yang
Shuo Zhang
Chengning Zhang
author_facet Guohui Yang
Shuo Zhang
Chengning Zhang
author_sort Guohui Yang
collection DOAJ
description Permanent magnet synchronous machines (PMSMs) are widely used in electric vehicles due to their high power density, high efficiency, etc. Core losses account for a significant component of the total loss in PMSMs. Therefore, it is necessary to carefully consider it when designing PMSMs according to actual scientific research project applications. This paper extracts the characteristic operating points of the PMSMs under different operating conditions at different speeds. Then a harmonic analysis of air-gap flux density, phase current, core loss was completed, and detailed comparative analysis was performed. A novel method for comprehensively analyzing the stator core loss of PMSMs for vehicles is proposed, which reveals the law of the core loss of the PMSM under Maximum-Torque-Per-Ampere (MTPA) and Space Vector Pulse Width Modulation (SVPWM). The method was verified by a prototype experiment where the actual core loss of PMSMs was measured to verify the correctness of the method. This research provides a reference for accurately predicting core loss during the forward design of PMSMs and completing core loss evaluation for existing PMSMs.
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spelling doaj.art-8de15e3a18da47d9a3aeb2aba08aef2a2023-11-20T17:24:54ZengMDPI AGApplied Sciences2076-34172020-10-011020723210.3390/app10207232Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating ConditionsGuohui Yang0Shuo Zhang1Chengning Zhang2National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Haidian District, Beijing 100081, ChinaNational Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Haidian District, Beijing 100081, ChinaNational Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, No. 5 Zhongguancun South Street, Haidian District, Beijing 100081, ChinaPermanent magnet synchronous machines (PMSMs) are widely used in electric vehicles due to their high power density, high efficiency, etc. Core losses account for a significant component of the total loss in PMSMs. Therefore, it is necessary to carefully consider it when designing PMSMs according to actual scientific research project applications. This paper extracts the characteristic operating points of the PMSMs under different operating conditions at different speeds. Then a harmonic analysis of air-gap flux density, phase current, core loss was completed, and detailed comparative analysis was performed. A novel method for comprehensively analyzing the stator core loss of PMSMs for vehicles is proposed, which reveals the law of the core loss of the PMSM under Maximum-Torque-Per-Ampere (MTPA) and Space Vector Pulse Width Modulation (SVPWM). The method was verified by a prototype experiment where the actual core loss of PMSMs was measured to verify the correctness of the method. This research provides a reference for accurately predicting core loss during the forward design of PMSMs and completing core loss evaluation for existing PMSMs.https://www.mdpi.com/2076-3417/10/20/7232permanent magnet synchronous machinescore lossflux densityMaximum-Torque-Per-AmpereSpace Vector Pulse Width Modulationharmonic analysis
spellingShingle Guohui Yang
Shuo Zhang
Chengning Zhang
Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions
Applied Sciences
permanent magnet synchronous machines
core loss
flux density
Maximum-Torque-Per-Ampere
Space Vector Pulse Width Modulation
harmonic analysis
title Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions
title_full Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions
title_fullStr Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions
title_full_unstemmed Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions
title_short Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions
title_sort analysis of core loss of permanent magnet synchronous machine for vehicle applications under different operating conditions
topic permanent magnet synchronous machines
core loss
flux density
Maximum-Torque-Per-Ampere
Space Vector Pulse Width Modulation
harmonic analysis
url https://www.mdpi.com/2076-3417/10/20/7232
work_keys_str_mv AT guohuiyang analysisofcorelossofpermanentmagnetsynchronousmachineforvehicleapplicationsunderdifferentoperatingconditions
AT shuozhang analysisofcorelossofpermanentmagnetsynchronousmachineforvehicleapplicationsunderdifferentoperatingconditions
AT chengningzhang analysisofcorelossofpermanentmagnetsynchronousmachineforvehicleapplicationsunderdifferentoperatingconditions