Sensorless vector control of an induction motor fed by a PWM inverter through an output LC filter

Janne Salomäki, Marko Hinkkanen, Jorma Luomi

    Research output: Contribution to journalArticleScientificpeer-review

    9 Citations (Scopus)

    Abstract

    The paper presents a speed sensorless vector control method for an induction motor that is supplied by a PWM inverter through an output LC filter. The system states are estimated by an adaptive full-order observer, and no additional voltage, current or speed measurements are needed. The rotor speed adaptation is based on the estimation error of the inverter output current. Quasi-steady-state analysis is used to illustrate the speed adaptation, and the stability is analyzed using a linearized model. Simulation and experimental results show that it is possible to achieve performance comparable to that of a drive without the LC filter.
    Original languageEnglish
    Pages (from-to)430-437
    JournalIEEJ Transactions on Industry Applications
    Volume126-D
    Issue number4
    Publication statusPublished - Apr 2006
    MoE publication typeA1 Journal article-refereed

    Keywords

    • induction motor
    • LC filter
    • observer
    • sensorless
    • vector control

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