Magnet Eddy Current Loss and Thermal Analysis of a Dual-Permanent-Magnet-Excited Machines

Qifang Lin; Shuangxia Niu; Fengbin Cai; Weinong Fu; Liku Shang

doi:10.1109/JESTPE.2021.3052905

Magnet Eddy Current Loss and Thermal Analysis of a Dual-Permanent-Magnet-Excited Machines

Qifang Lin, Shuangxia Niu, Fengbin Cai, Weinong Fu, Liku Shang

The Hong Kong Polytechnic University

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

7 Citations (Scopus)

Abstract

This article investigates the eddy current loss mechanism of a dual-permanent-magnet-excited machines (DPMM). Based on the flux modulation effect, abundant harmonics are induced in the air gap of DPMM. The harmonics of air-gap flux density due to rotor permanent magnets (PMs), stator PMs, and armature reaction are investigated qualitatively and separately. Then, the orders, frequency, and rotation speed of the harmonics are deduced theoretically. The harmonics that contribute to the eddy current losses are deduced accordingly. Finally, the loss distribution of the proposed DPMM is estimated through simulation and the thermal field of the proposed motor is analyzed. A prototype is fabricated to validate the analysis. Temperature rise of both stator and rotor PMs under rated load condition is measured through experiment.

Original language	English
Pages (from-to)	3793-3804
Number of pages	12
Journal	IEEE Journal of Emerging and Selected Topics in Power Electronics
Volume	10
Issue number	4
DOIs	https://doi.org/10.1109/JESTPE.2021.3052905
Publication status	Published - 1 Aug 2022

Keywords

Dual permanent magnet (PM)
eddy current loss
harmonic analysis
temperature rise

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

More information

10.1109/JESTPE.2021.3052905

Cite this

@article{49f09a62c076454fb92e05ae61250fc9,

title = "Magnet Eddy Current Loss and Thermal Analysis of a Dual-Permanent-Magnet-Excited Machines",

abstract = "This article investigates the eddy current loss mechanism of a dual-permanent-magnet-excited machines (DPMM). Based on the flux modulation effect, abundant harmonics are induced in the air gap of DPMM. The harmonics of air-gap flux density due to rotor permanent magnets (PMs), stator PMs, and armature reaction are investigated qualitatively and separately. Then, the orders, frequency, and rotation speed of the harmonics are deduced theoretically. The harmonics that contribute to the eddy current losses are deduced accordingly. Finally, the loss distribution of the proposed DPMM is estimated through simulation and the thermal field of the proposed motor is analyzed. A prototype is fabricated to validate the analysis. Temperature rise of both stator and rotor PMs under rated load condition is measured through experiment.",

keywords = "Dual permanent magnet (PM), eddy current loss, harmonic analysis, temperature rise",

author = "Qifang Lin and Shuangxia Niu and Fengbin Cai and Weinong Fu and Liku Shang",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2022",

month = aug,

day = "1",

doi = "10.1109/JESTPE.2021.3052905",

language = "English",

volume = "10",

pages = "3793--3804",

journal = "IEEE Journal of Emerging and Selected Topics in Power Electronics",

issn = "2168-6777",

publisher = "IEEE",

number = "4",

}

TY - JOUR

T1 - Magnet Eddy Current Loss and Thermal Analysis of a Dual-Permanent-Magnet-Excited Machines

AU - Lin, Qifang

AU - Niu, Shuangxia

AU - Cai, Fengbin

AU - Fu, Weinong

AU - Shang, Liku

PY - 2022/8/1

Y1 - 2022/8/1

N2 - This article investigates the eddy current loss mechanism of a dual-permanent-magnet-excited machines (DPMM). Based on the flux modulation effect, abundant harmonics are induced in the air gap of DPMM. The harmonics of air-gap flux density due to rotor permanent magnets (PMs), stator PMs, and armature reaction are investigated qualitatively and separately. Then, the orders, frequency, and rotation speed of the harmonics are deduced theoretically. The harmonics that contribute to the eddy current losses are deduced accordingly. Finally, the loss distribution of the proposed DPMM is estimated through simulation and the thermal field of the proposed motor is analyzed. A prototype is fabricated to validate the analysis. Temperature rise of both stator and rotor PMs under rated load condition is measured through experiment.

AB - This article investigates the eddy current loss mechanism of a dual-permanent-magnet-excited machines (DPMM). Based on the flux modulation effect, abundant harmonics are induced in the air gap of DPMM. The harmonics of air-gap flux density due to rotor permanent magnets (PMs), stator PMs, and armature reaction are investigated qualitatively and separately. Then, the orders, frequency, and rotation speed of the harmonics are deduced theoretically. The harmonics that contribute to the eddy current losses are deduced accordingly. Finally, the loss distribution of the proposed DPMM is estimated through simulation and the thermal field of the proposed motor is analyzed. A prototype is fabricated to validate the analysis. Temperature rise of both stator and rotor PMs under rated load condition is measured through experiment.

KW - Dual permanent magnet (PM)

KW - eddy current loss

KW - harmonic analysis

KW - temperature rise

UR - http://www.scopus.com/inward/record.url?scp=85099731518&partnerID=8YFLogxK

U2 - 10.1109/JESTPE.2021.3052905

DO - 10.1109/JESTPE.2021.3052905

M3 - Journal article

AN - SCOPUS:85099731518

SN - 2168-6777

VL - 10

SP - 3793

EP - 3804

JO - IEEE Journal of Emerging and Selected Topics in Power Electronics

JF - IEEE Journal of Emerging and Selected Topics in Power Electronics

IS - 4

ER -

Magnet Eddy Current Loss and Thermal Analysis of a Dual-Permanent-Magnet-Excited Machines

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this