In order to monitor the state of permanent magnet(PM) in PMSM, a design strategy of adaptive observer is proposed. The observer is built bases on the theory of Popov's hyper-stability theory. Then the influences of parameter variations on the PM flux linkage estimation are investigated. It is shown that the q-axis inductance Lq mismatch has the most serious influence on the flux estimation. To reduce the sensitivity of Lq, a flux adaptive observer combined with Lq is proposed in this paper. Experimental results verify the effect of this method.


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    Title :

    Permanent magnet flux linkage adaptive observer for permanent magnet synchronous motor


    Contributors:
    Qiu, Tengfei (author) / Wen, Xuhui (author) / Zhao, Feng (author) / Wang, Yongxing (author)


    Publication date :

    2014-08-01


    Size :

    779404 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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