A dynamic model of an x-by-wire actuator applicable in e.g. Electronic Power Steering, Brake-by-Wire or Electronic Parking Brake is presented. The actuator includes PMSM (Permanent Magnet Synchronous Machine), inverter, controller and a simplified mechanical load model. The PMSM is approximated by a set of differential equations describing each coil or each phase, with the possibility to simulate winding short circuit faults. A three-leg inverter model is designed, where all transistors and diodes inside may have separate short circuit or open circuit condition to simulate inverter faults. A field-oriented torque and speed cascade controller is implemented. In 'one fault at one time' failure condition, simulation results from model with independent coil equations and independent phase equations are investigated.


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    Title :

    Fault model of an inverter-fed PM motor for x-by-wire systems


    Additional title:

    Fehlermodell eines über einen Umrichter gespeisten Dauermagnetmotors für elektronisch gesteuerte Fahrzeuge (X-by-Wire)


    Contributors:
    Feng, L. (author) / Rentschler, A. (author) / Binder, A. (author) / Paweletz, A. (author)


    Publication date :

    2006


    Size :

    6 Seiten, 13 Bilder, 3 Tabellen, 3 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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