Five-phase PM BLDC drives are a viable solution for safety-critical applications in road traction and aeronautics sectors. A common supply technique for these drives consists in the injection of square-wave currents into the motor phases, synchronized with the flat-top portion of the back-emf to produce both constant torque and maximum torque per ampere. In practice, the currents deviate from the ideal shape during the phase commutations, which further affects the torque characteristics of the drives. This paper analyzes the current behavior during the phase commutations for the five-phase PM BLDC drives as they exhibit some differences with respect to the three-phase counterpart. Then it uses the outcomes of the current analysis to derive the effective torque developed and the torque ripple exhibited by the drive as a function of the motor speed. The base speed of the drive is also determined. Throughout the paper, the differences from the well-known operation of the three-phase PM BLDC drives are pointed out.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Commutation effects on motor current and torque in five-phase PM BLDC drives


    Beteiligte:


    Erscheinungsdatum :

    01.10.2014


    Format / Umfang :

    271205 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Inverter commutation techniques for five-phase synchronous motor drives

    PRAMOD PRERIT / ZHANG ZHE / ARAFAT A K M | Europäisches Patentamt | 2020

    Freier Zugriff

    INVERTER COMMUTATION TECHNIQUES FOR FIVE-PHASE SYNCHRONOUS MOTOR DRIVES

    PRAMOD PRERIT / ZHANG ZHE / ARAFAT AKM | Europäisches Patentamt | 2020

    Freier Zugriff

    BLDC motor commutation position optimization strategy based on bus current

    Zhang, Qian / Feng, Ming | British Library Online Contents | 2016


    Control of Two 3-Phase BLDC Motor Drives Using a Five-Leg Inverter

    Gonna, Gowthami / P, Rajeevan P | IEEE | 2023