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.
Magnet flux amount estimation device, abnormal demagnetize determination device, synchronous motor driving device, and electric motor car
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
2019-12-18
Patent
Electronic Resource
English
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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