Torque density and efficiency improvements of a switched reluctance motor without rare-earth material for hybrid vehicles

Akira Chiba; Yuichi Takano; Motoki Takeno; Takashi Imakawa; Nobukazu Hoshi; Masatsugu Takemoto; Satoshi Ogasawara

doi:10.1109/TIA.2011.2125770

Torque density and efficiency improvements of a switched reluctance motor without rare-earth material for hybrid vehicles

Akira Chiba, Yuichi Takano, Motoki Takeno, Takashi Imakawa, Nobukazu Hoshi, Masatsugu Takemoto, Satoshi Ogasawara

Research output: Contribution to journal › Article › peer-review

234 Citations (Scopus)

Abstract

A machine design of a switched reluctance motor having competitive torque and efficiency as well as compactness with respect to an interior permanent-magnet (IPM) synchronous motor (IPMSM) in a hybrid electric vehicle (Toyota Prius 2003) has been investigated. A torque of 400 N ·m is set as a target with an outer diameter of 269 mm with an axial length of 156 mm, including coil end lengths. In addition, a 50-kW field weakening capability must be competitive to the IPMSM. The highest efficiency of 95% is also aimed. Stator and rotor structures and iron material are investigated. Test machines are built. Static and light load tests are carried out.

Original language	English
Article number	5728864
Pages (from-to)	1240-1246
Number of pages	7
Journal	IEEE Transactions on Industry Applications
Volume	47
Issue number	3
DOIs	https://doi.org/10.1109/TIA.2011.2125770
Publication status	Published - May 2011
Externally published	Yes

Keywords

Efficiency
hybrid vehicles
switched reluctance motor (SRM)
torque density

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1109/TIA.2011.2125770

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title = "Torque density and efficiency improvements of a switched reluctance motor without rare-earth material for hybrid vehicles",

abstract = "A machine design of a switched reluctance motor having competitive torque and efficiency as well as compactness with respect to an interior permanent-magnet (IPM) synchronous motor (IPMSM) in a hybrid electric vehicle (Toyota Prius 2003) has been investigated. A torque of 400 N ·m is set as a target with an outer diameter of 269 mm with an axial length of 156 mm, including coil end lengths. In addition, a 50-kW field weakening capability must be competitive to the IPMSM. The highest efficiency of 95% is also aimed. Stator and rotor structures and iron material are investigated. Test machines are built. Static and light load tests are carried out.",

keywords = "Efficiency, hybrid vehicles, switched reluctance motor (SRM), torque density",

author = "Akira Chiba and Yuichi Takano and Motoki Takeno and Takashi Imakawa and Nobukazu Hoshi and Masatsugu Takemoto and Satoshi Ogasawara",

note = "Funding Information: Manuscript received October 2, 2010; accepted November 3, 2010. Date of publication March 10, 2011; date of current version May 18, 2011. Paper 2010-EMC-378, presented at the 2010 IEEE Energy Conversion Congress and Exposition, Atlanta, GA, September 12–16, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Electric Machines Committee of the IEEE Industry Applications Society. This work conducted as a part of the Li-EAD project supported by the New Energy and Industrial Technology Development Organization (NEDO) in Japan. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2011",

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doi = "10.1109/TIA.2011.2125770",

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AU - Hoshi, Nobukazu

AU - Takemoto, Masatsugu

AU - Ogasawara, Satoshi

N1 - Funding Information: Manuscript received October 2, 2010; accepted November 3, 2010. Date of publication March 10, 2011; date of current version May 18, 2011. Paper 2010-EMC-378, presented at the 2010 IEEE Energy Conversion Congress and Exposition, Atlanta, GA, September 12–16, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Electric Machines Committee of the IEEE Industry Applications Society. This work conducted as a part of the Li-EAD project supported by the New Energy and Industrial Technology Development Organization (NEDO) in Japan. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

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AB - A machine design of a switched reluctance motor having competitive torque and efficiency as well as compactness with respect to an interior permanent-magnet (IPM) synchronous motor (IPMSM) in a hybrid electric vehicle (Toyota Prius 2003) has been investigated. A torque of 400 N ·m is set as a target with an outer diameter of 269 mm with an axial length of 156 mm, including coil end lengths. In addition, a 50-kW field weakening capability must be competitive to the IPMSM. The highest efficiency of 95% is also aimed. Stator and rotor structures and iron material are investigated. Test machines are built. Static and light load tests are carried out.

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Torque density and efficiency improvements of a switched reluctance motor without rare-earth material for hybrid vehicles

Abstract

Keywords

ASJC Scopus subject areas

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