MOTOR CONSTANT CALCULATING METHOD FOR PM MOTOR, AND MOTOR CONSTANT CALCULATING DEVICE

A motor constant calculating method for a PM motor according to the present invention includes a voltage applying step of applying an applied voltage including a DC component and a plurality of frequency components to a PM motor, a motor current detecting step of detecting a motor current flowing de...

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Bibliographische Detailangaben
Hauptverfasser: NISHIZONO, Masaru, TAZAWA, Toru
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A motor constant calculating method for a PM motor according to the present invention includes a voltage applying step of applying an applied voltage including a DC component and a plurality of frequency components to a PM motor, a motor current detecting step of detecting a motor current flowing depending on the applied voltage applied in the voltage applying step, and a motor constant calculating step of calculating a motor constant of the PM motor based on the applied voltage and the motor current.