A method for determining a rotor position of an electric motor, an elevator and an electrical converter unit are presented. The method comprises supplying a first excitation signal to the electric motor, determining a first response signal generated in the motor in response to the first excitation signal, determining, based on the first response signal, an electrical angle of a direct axis of the motor with respect to a stationary reference frame, supplying a second excitation signal to the motor, wherein the second excitation signal is based on the determined electrical angle, determining a second response signal generated in the motor in response to the second excitation signal, and determining the rotor position based on the second response signal.


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    Title :

    METHOD FOR DETERMINING ROTOR POSITION OF ELECTRIC MOTOR, ELEVATOR AND ELECTRICAL CONVERTER UNIT


    Contributors:

    Publication date :

    2020-09-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B66B Aufzüge , ELEVATORS / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen



    METHOD FOR DETERMINING ROTOR POSITION OF ELECTRIC MOTOR, ELEVATOR AND ELECTRICAL CONVERTER UNIT

    KAUPPINEN TUUKKA / STOLT LAURI / PAAKKINEN MIKKO | European Patent Office | 2020

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    METHOD FOR DETERMINING ROTOR POSITION OF ELECTRIC MOTOR, ELEVATOR AND ELECTRICAL CONVERTER UNIT

    KAUPPINEN TUUKKA / STOLT LAURI / PAAKKINEN MIKKO | European Patent Office | 2022

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    Method for determining rotor position of electric motor, elevator and electrical converter unit

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