Abstract Three-level inverters are increasingly used in high-voltage and high-power applications. The fault diagnosis problem of the IGBTs gets highly attention considering to the safety and reliability of the system. Therefore, the IGBT open-circuit fault diagnosis of the three-level neutral point clamped (NPC) inverter is discussed in this paper. The output voltage of the inverter is analyzed when open-circuit fault occurs under open-loop condition. An improved algorithm is proposed based on the former results, which can be applied in the fault diagnosis of the open-circuit IGBTs in the closed-loop control system. The experimental results show that the proposed method can locate the fault IGBTs accurately and quickly with one open-circuit IGBTs.


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    Titel :

    IGBT Open-Circuit Fault Diagnosis for Closed-Loop System of Three-Level NPC Inverters


    Beteiligte:
    Zhang, Ming (Autor:in) / Guo, Yuanbo (Autor:in) / Huang, Kai (Autor:in) / Li, Lin (Autor:in) / Zhang, Xiaohua (Autor:in)


    Ausgabe :

    1st ed. 2016


    Erscheinungsdatum :

    01.01.2016


    Format / Umfang :

    9 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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