The present paper illustrates a fault-tolerant control (FTC) scheme against line current sensor failures in direct torque control (DTC) of induction motor (IM) drives using space vector pulse width modulation (SVPWM) technique. In this paper, the current sensor fault has been detected using a third-difference operator (TDO). Further, the fault isolation and reconfiguration of the system are achieved using an AND-OR latch-based decision-making technique. The proposed method employs a current estimator in stationary reference $(\alpha- \beta)$ frame and a soft switch is used for feeding the estimated currents over actual currents to the DTC-SVPWM controller in case of current sensor faults. This renders the design of the FTC scheme novel, simple, and independent of control regime. MATLAB/ Simulink is used to simulate the proposed scheme and its performance and effectiveness are verified in hardware domain using the dSPACE-1103 based 5.5 kW IM drive experimental setup.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Fault-Tolerant Strategy against Current Sensor Failures for DTC-SVPWM based Induction Motor Drives


    Contributors:


    Publication date :

    2023-08-09


    Size :

    938286 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English







    Fault tolerant permanent magnet DC motor drives

    WOO JULIUS M / PRAMOD PRERIT / ISLAM MOHAMMED R | European Patent Office | 2020

    Free access