According to one embodiment, a magnet flux amount estimation device includes a magnetic pole position detector (8) configured to detect a magnetic pole position of a permanent magnet synchronous motor (7) including a permanent magnet within a rotor; an inductance-equivalent value determination module (10) configured to determine an inductance-equivalent value of a d-axis corresponding to a determined magnetic pole direction; and a magnet flux amount estimator (11) configured to calculate an estimation value of a magnet flux amount of the permanent magnet, based on the inductance-equivalent value.


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    Title :

    Magnet flux amount estimation device, abnormal demagnetize determination device, synchronous motor driving device, and electric motor car


    Additional title:

    Magnetflussschätzungsvorrichtung, Vorrichtung zur Bestimmung von anormaler Entmagnetisierung, Synchronmotoransteuerungsvorrichtung und elektrisches Kraftfahrzeug
    Dispositif d'estimation de quantité de flux magnétique, dispositif de détermination de démagnétisation anormale, dispositif d'entraînement de moteur synchrone et véhicule à moteur électrique


    Contributors:
    YASUI KAZUYA (author) / TANIGUCHI SHUN (author) / KANO MASARU (author)

    Publication date :

    2019-12-18


    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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