This paper presents a fast and reliable fault diagnosis and fault-tolerant approach for grid current and dc-link voltages sensor faults in the single-phase cascaded H-bridge rectifiers (SPCHBR). Firstly, a state observer with the mixed logic dynamic (MLD) model is established for obtaining the observed sensor signals and system residuals. And then normalized residuals are generated to diagnose and isolate single or multiple sensor faults online by comparing different residuals with thresholds. Moreover, fault-tolerant control is realized by redesigning the observer gain and substituting the observed values for the measured values. The proposed approach can accomplish the accurate location of the faulty sensors and system reconfiguration within half of the current fundamental period. The effectiveness and availability of the proposed approach has been verified by MATLAB/Simulink.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Sensor Fault Diagnosis and Fault-Tolerant Approach Based on State Observer for Single-Phase Cascaded H-Bridge Rectifiers


    Beteiligte:
    Xie, Dong (Autor:in) / Wang, Huimin (Autor:in) / Ge, Xinglai (Autor:in)


    Erscheinungsdatum :

    2019-05-01


    Format / Umfang :

    681374 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Fault Diagnosis and Active Fault Tolerant Control for Near Space Vehicle Based on Adaptive Observer

    Xu, Y. / Jiang, B. / Ren, Z. et al. | British Library Conference Proceedings | 2010


    Fault Diagnosis and Active Fault Tolerant Control for Near Space Vehicle Based on Adaptive Observer

    Xu, Y. / Jiang, B. / Ren, Z. et al. | British Library Conference Proceedings | 2010


    Fault diagnosis and system reconfiguration strategy of single-phase cascaded inverter

    Wang, Yi / He, Xiaoqiong / Han, Pengcheng et al. | IEEE | 2017


    Fault tolerant control based on active fault diagnosis

    Niemann, Hans Henrik | BASE | 2005

    Freier Zugriff