Analysis and design of full-order flux observers for sensorless induction motors

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


    This paper deals with the flux estimation for sensorless induction motor drives. The linearized model of the speed-adaptive full-order flux observer is applied to help choosing the observer gain and the speed-adaptation gains. It is shown that the linearized model reveals potential instability problems that are difficult to find by other means. An observer gain and a method to vary the speed-adaptation gains in the field-weakening region are proposed. Experimental results show stable operation in a very wide speed range.
    Original languageEnglish
    Title of host publication28th Annual Conference of the IEEE Industrial Electronics Society
    Subtitle of host publicationInternational Conference on Industrial Electronics, Control and Instrumentation (IECON'2002)
    Place of PublicationSevilla, Spain
    Publication statusPublished - 5 Nov 2002
    MoE publication typeA4 Article in a conference publication


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