Electromagnetic Design of High-Power and High-Speed Permanent Magnet Synchronous Motor Considering Loss Characteristics

Wen Ji, Fei Ni, Dinggang Gao, Shihui Luo, Qichao Lv and Dongyuan Lv
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Wen Ji: Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China
Fei Ni: Maglev Transportation Engineering R&D Center, Tongji University, Shanghai 201804, China
Dinggang Gao: Maglev Transportation Engineering R&D Center, Tongji University, Shanghai 201804, China
Shihui Luo: Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, China
Qichao Lv: Shanghai Aerospace Control Technology Institute, Shanghai 201109, China
Dongyuan Lv: Shanghai Aerospace Control Technology Institute, Shanghai 201109, China

Energies, 2021, vol. 14, issue 12, 1-19

Abstract: The motor is an important part of the flywheel energy storage system. The flywheel energy storage system realizes the absorption and release of electric energy through the motor, and the high-performance, low-loss, high-power, high-speed motors are key components to improve the energy conversion efficiency of energy storage flywheels. This paper analyzes the operating characteristics of the permanent magnet synchronous motor/generator (PMSG) used in the magnetically levitated flywheel energy storage system (FESS) and calculates the loss characteristics in the drive and power generation modes. Based on this, the electromagnetic part of the motor is optimized in detail. Aiming at this design, this paper calculates the loss characteristics of driving and power generation modes in detail, including its winding loss, core loss, rotor eddy current loss and mechanical loss. The calculation results show that the design meets the loss requirements. It can reduce the no-load loss of the permanent magnet synchronous motor at high speed and improve the energy conversion efficiency, which gives this system practical application prospects.

Keywords: magnetic levitation flywheel energy storage system; permanent magnet synchronous motor; electromagnetic design; loss characteristics (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
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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