The traction drive system without industrial frequency transformer is the trend and effective lightweight solution of high-speed train in the future. Cascade H-bridge rectifier has become the preferred solution for the front end of this technology due to its modular structure and simple control. In this paper, the working principle of single-phase cascaded H-bridge rectifier is analyzed, and an improved transient direct current control method without phase-locked loop (PLL) is proposed. The command current signal is calculated by the relation of instantaneous power to voltage and current in the two-phase stationary coordinate system to realize the tracking control of the grid current to the voltage. On this basis, aiming at the DC-link voltage imbalance caused by unbalanced loads, a voltage balancing control method without PLL is proposed. Simulation results show the effectiveness of the proposed method.


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    Titel :

    Transient Direct Current Control of Single-Phase Cascaded H-Bridge Rectifier Without Phase-Locked Loop


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Jia, Limin (Herausgeber:in) / Qin, Yong (Herausgeber:in) / Liu, Baoming (Herausgeber:in) / Liu, Zhigang (Herausgeber:in) / Diao, Lijun (Herausgeber:in) / An, Min (Herausgeber:in) / Ding, Juxia (Autor:in) / Li, Qunzhan (Autor:in)

    Kongress:

    International Conference on Electrical and Information Technologies for Rail Transportation ; 2019 ; Qingdao, China October 25, 2019 - October 27, 2019



    Erscheinungsdatum :

    2020-04-08


    Format / Umfang :

    9 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch