Because of its environmentally friendly, highly efficient, and multifunctional, the new hybrid EMU will have a broad space for development. Hybrid EMU ESS links lithium battery and intermediate DC bus together, bidirectional energy flow, its load is nonlinear, time-varying, and other characteristics. This work establishes the equivalent small-signal model of ESS based on the Thevenin equivalent circuit model of the power lithium battery. On this basis, choose a right charge and discharge control strategy according to the complicated working condition of the hybrid EMU ESS, and the voltage and current double-closed-loop controller is designed. The simulation shows that the system controller is robust and suitable for the complex working condition application of the ESS.


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    Title :

    The Control Strategy Research of Hybrid EMU Energy Storage System


    Contributors:
    He, Wenhui (author) / Jia, Xiaoguang (author) / Jin, Zheming (author) / Diao, Lijun (author) / Liu, Zhigang (author)


    Publication date :

    2014


    Size :

    10 Seiten





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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