Design Method for Flux-Concentrating Permanent-Magnet Traction Machine Based on Voltage-Parameter Map

Ki-Doek Lee, Jeong-Jong Lee, Myung-Hwan Yoon and Joon-Sung Park
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Ki-Doek Lee: Intelligent Mechatronics Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Seongnam-si 13509, Korea
Jeong-Jong Lee: Intelligent Mechatronics Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Seongnam-si 13509, Korea
Myung-Hwan Yoon: Intelligent Mechatronics Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Seongnam-si 13509, Korea
Joon-Sung Park: Intelligent Mechatronics Research Center, Korea Electronics Technology Institute, Gyeonggi-do, Seongnam-si 13509, Korea

Energies, 2021, vol. 14, issue 17, 1-21

Abstract: A voltage-parameter map (VP-Map) is proposed for predicting the performance of electric vehicles (EVs) and hybrid EVs (HEVs), which varies with respect to the parameters in a variable load and flux-weakening range, and determining the design parameters. Through this, the maximum torque that can be generated at the maximum speed, the input current for generation of the rated torque, and whether the vehicle is operable with a light load are predicted, and the design parameters suitable for the 120-kW class interior permanent-magnet (PM) synchronous motor for HEVs, which is the target electric motor of this study, are determined. A flux-concentrating PM synchronous motor (FCPMSM) is proposed that can be designed using the desired design parameters depending on the degree of the flux concentration. The validity of the VP-Map was verified by analyzing the characteristics of three types of FCPMSMs with different parameter combinations, and a PM synchronous motor for an EV having a high output, high efficiency, and high-power factor was designed. Lastly, the requirements were checked, and the analysis was validated by testing the designed motor.

Keywords: interior permanent-magnet synchronous motor (IPMSM); traction motor; electric vehicle (EV); hybrid electric vehicle (HEV); voltage-parameter map (VP-Map); power density; power factor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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