Reduced-order flux observers with stator-resistance adaptation for speed-sensorless induction motor drives

Marko Hinkkanen, Lennart Harnefors, Jorma Luomi

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

    28 Citations (Scopus)

    Abstract

    This paper deals with reduced-order flux observers with stator-resistance adaptation for speed-sensorless induction motor drives. A general analytical solution for the stabilizing observer gain is given. The gain has two free positive parameters (which may depend on the operating point), whose selection significantly affects the damping, convergence rate, robustness, and other properties of the observer. The general stability conditions for the stator-resistance adaptation are derived. An observer design is proposed that yields a robust and well-damped system and requires a minimal amount of tuning work. The proposed observer design is experimentally tested using a 45-kW induction motor drive; stable operation at very low speeds under different loading conditions is demonstrated.
    Original languageEnglish
    Title of host publicationIEEE Energy Conversion Congress and Expo (ECCE 2009)
    Pages155-162
    Number of pages8
    ISBN (Electronic)978-1-4244-2893-9
    DOIs
    Publication statusPublished - 20 Sep 2009
    MoE publication typeA4 Article in a conference publication
    EventIEEE Energy Conversion Congress and Exposition - San Jose, United States
    Duration: 20 Sep 200924 Sep 2009

    Publication series

    NameIEEE Energy Conversion Congress & Exposition
    ISSN (Print)2329-3721
    ISSN (Electronic)2329-3748

    Conference

    ConferenceIEEE Energy Conversion Congress and Exposition
    Abbreviated titleECCE
    CountryUnited States
    CitySan Jose
    Period20/09/200924/09/2009

    Keywords

    • flux observer
    • induction machine
    • speed sensorless
    • stability conditions
    • stator resistance estimation

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  • Cite this

    Hinkkanen, M., Harnefors, L., & Luomi, J. (2009). Reduced-order flux observers with stator-resistance adaptation for speed-sensorless induction motor drives. In IEEE Energy Conversion Congress and Expo (ECCE 2009) (pp. 155-162). (IEEE Energy Conversion Congress & Exposition). https://doi.org/10.1109/ECCE.2009.5316367