High speed multi-phase machine has drawn widely attention towards the development of electrification due to its high power density and fault tolerant capability. A 50 kW high speed nine-phase permanent magnet synchronous machine has been designed for more electric aircraft, of which the fundamental frequency is up to 2 kHz. Analysis in terms of stability, parameter sensitivity, system stiffness, transient and steady-state responses are carried out to compare the conventional proportional-integral (PI) and the complex vector current controllers. Simulation results show that the combination of complex vector current controller with virtual resistance and the improved anti-windup scheme is the best choice in all test aspects. What is more, by using the double sampling technique, the current THD is maintained less than 10% at the desired operation points when the switching frequency to fundamental frequency ratio ($R$) is above 10, and the system stability is maintained when the $R$ is only 5.


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    Title :

    Optimised Current Loop Design for a High Speed Nine-Phase Permanent Magnet Synchronous Machine in More Electric Aircraft: A Case Study


    Contributors:
    Tang, Mi (author) / Huang, Zhen (author) / Wang, Bo (author) / Lang, Xiaoyu (author) / Velmurugan, Ganeish (author) / Yang, Tao (author) / Gerada, Chris (author) / Zanchetta, Pericle (author)


    Publication date :

    2021-06-21


    Size :

    2923731 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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