Characterisation of the mechanical motor parameters for a permanent magnet synchronous motor using induced torque harmonics

    Research output: Chapter in Book/Report/Conference proceedingConference Paper published in Proceedings

    Abstract

    Determination of mechanical motor parameters is often desirable for accurate control of permanent magnet synchronous motors. A good example where these parameters are needed is when the torque is reconstructed from velocity measurements as in [3]. The method proposed in this paper allows the determination of the mechanical motor parameters while the motor is operating. This is done by inducing torque harmonics at frequencies that are not excited by the normal operation of the motor and measuring the velocity response. By using the reference current waveform methods described in [6] this excitation can be done without the use of a torque sensor. Results show that the determined moment of inertia varies by a standard deviation of less than 1 % over the operating range. The viscous friction, once normalised by the velocity and torque setpoints also varies by a standard deviation of less than 1%. The accuracy of this method has been further demonstrated by comparing the torque reconstructed using the determined parameters with the measured torque.
    Original languageEnglish
    Title of host publicationMagnet synchronous motor using induced torque harmonics
    Subtitle of host publicationProceedings of AUPEC 2007
    Place of PublicationPerth
    PublisherIEEE, Institute of Electrical and Electronics Engineers
    Pages-
    Number of pages5
    Publication statusPublished - 2007
    EventAUPEC 07. Australasian Universities Power Engineering Conference - Perth
    Duration: 9 Dec 200712 Dec 2007

    Conference

    ConferenceAUPEC 07. Australasian Universities Power Engineering Conference
    Period9/12/0712/12/07

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  • Cite this

    Heins, G., De Boer, F., & Vafi, S. (2007). Characterisation of the mechanical motor parameters for a permanent magnet synchronous motor using induced torque harmonics. In Magnet synchronous motor using induced torque harmonics: Proceedings of AUPEC 2007 (pp. -). IEEE, Institute of Electrical and Electronics Engineers.