Analysis of an adaptive observer for sensorless control of interior permanent magnet synchronous motors

Antti Piippo, Marko Hinkkanen, Jorma Luomi

    Research output: Contribution to journalArticleScientificpeer-review

    169 Citations (Scopus)

    Abstract

    This paper deals with a speed and position estimation method for the sensorless control of permanent magnet synchronous motors. The method is based on a speed-adaptive observer. The dynamics of the system are analyzed by linearizing both the motor model and the observer, and the observer gain is selected to give improved damping and noise suppression. At low speeds, the observer is augmented with a signal injection technique, providing stable operation down to zero speed. The experimental results, obtained using a 2.2-kW interior magnet motor, are in agreement with the results of the analysis.
    Original languageEnglish
    Pages (from-to)570-576
    JournalIEEE Transactions on Industrial Electronics
    Volume55
    Issue number2
    DOIs
    Publication statusPublished - 31 Jan 2008
    MoE publication typeA1 Journal article-refereed

    Keywords

    • adaptive observers
    • motion control
    • permanent magnet motors
    • stability analysis

    Fingerprint

    Dive into the research topics of 'Analysis of an adaptive observer for sensorless control of interior permanent magnet synchronous motors'. Together they form a unique fingerprint.

    Cite this