Control of induction motor drives equipped with small DC-link capacitance

Marko Hinkkanen, Lennart Harnefors, Jorma Luomi

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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    Abstract

    The paper deals with control of induction motor drives equipped with a diode rectifier and a small DC-link capacitance. Neither an AC choke nor a DC choke is used. It is necessary to use DC-link stabilization control if the mains inductance is not very low. Conventional DC-link stabilization controllers rely on the current controller. If no input choke is used, however, the natural frequency of the DC link is higher than the current-control bandwidth, and the conventional stabilization methods cannot be used. This paper proposes a control algorithm based on direct manipulation of the stator voltage reference. Furthermore, a recently proposed field-weakening controller is modified to better suit the oscillating DC-link voltage. Design recommendations for the proposed scheme are presented. Simulation results of a 110-kW drive show that the proposed scheme stabilizes the DC link and the dynamic performance is comparable with that of the conventional drive.
    Original languageEnglish
    Title of host publication12th European Conference on Power Electronics and Applications (EPE2007)
    Number of pages10
    ISBN (Electronic)9789075815108
    DOIs
    Publication statusPublished - 2 Sep 2007
    MoE publication typeA4 Article in a conference publication
    EventEuropean Conference on Power Electronics and Applications - Aalborg, Denmark
    Duration: 2 Sep 20075 Sep 2007
    Conference number: 12

    Publication series

    NameEuropean Conference on Power Electronics and Applications
    ISSN (Print)2325-0313

    Conference

    ConferenceEuropean Conference on Power Electronics and Applications
    Abbreviated titleEPE-ECCE Europe
    CountryDenmark
    CityAalborg
    Period02/09/200705/09/2007

    Keywords

    • control of drive
    • converter control
    • induction motor

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