Optimum design of highly efficient magnet assisted reluctance motor

Permanent magnet motors have attracted a lot of attention for their potential energy saving. However, they are only used for certain applications because of expensive magnets. This paper discusses the optimum design of the low cost and highly efficient magnet assisted reluctance motors with a minimu...

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Bibliographic Details
Published inConference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248) Vol. 4; pp. 2296 - 2301 vol.4
Main Authors Murakami, H., Honda, Y., Sadanaga, Y., Ikkai, Y., Morimoto, S., Takeda, Y.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Copper
Costs
Induction generators
Magnetic flux
Permanent magnet motors
Reluctance generators
Reluctance motors
Rotors
Synchronous motors
Torque
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Summary:Permanent magnet motors have attracted a lot of attention for their potential energy saving. However, they are only used for certain applications because of expensive magnets. This paper discusses the optimum design of the low cost and highly efficient magnet assisted reluctance motors with a minimum amount of magnets. The motor considered in this study is a multi-flux barrier reluctance motor with assisted permanent magnets. The configuration by which permanent magnets are embedded to the innermost side of the rotor to obtain maximum output with the minimum amount of magnets was evaluated through simulation and experiments with a prototype motor. As a result, we established a method for designing motors capable of realizing the same efficiency as permanent magnet motors with only one-fourth the amount of magnets. In our experiments, we achieved a high efficiency of 94.4% with a 750 W motor.
ISBN:0780371143
9780780371149
ISSN:0197-2618
2576-702X
DOI:10.1109/IAS.2001.955944