Surface permanent magnet (SPM) machines are appealing candidates for traction applications because of high power density and high efficiency. Rare-earth magnets deliver high performance but raise concerns about material supply dependability, particularly if they use heavy rare-earth materials. This paper presents the design of a high-performance SPM machine without any heavy rare-earth material that is optimized specifically for a current-source inverter (CSI) traction drive. This machine is designed for a constant-power speed ratio (CPSR) of 3. A genetic algorithm has been performed to achieve a target of 50 kW/L active power density at speeds up to 20,000 rpm. Operation at a peak line-to-line voltage of 800 V can be achieved using 1200 V power devices with a safety margin. The predicted electromagnetic and rotor structural performance characteristics are presented using both analytical and finite element analysis (FEA) results.


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    Title :

    Design of High Power Density 100 kW Surface Permanent Magnet Machine with No Heavy Rare Earth Material Using Current Source Inverter for Traction Application


    Contributors:
    Feng, Wenda (author) / Ding, Hao (author) / Chen, Feida (author) / Lee, Sangwhee (author) / Chen, Ken (author) / Jahns, Thomas (author) / Sarlioglu, Bulent (author)


    Publication date :

    2021-06-21


    Size :

    1320603 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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