An AC motor drive control device including: an inverter INV, having a plurality of switching elements subjected to on-off control, for converting a DC voltage to an AC voltage with a desired frequency to drive an AC motor 6; a motor opening contactor MMK connected between the inverter INV and the AC motor 6; a switching operation beforehand detection unit 55 for detecting a switching operation of the motor opening contactor MMK prior to the contact or detach of main contacts and outputting a switching operation beforehand detection signal; and a control unit 10A having an inverter control unit 70 for performing the on-off control for the plurality of switching elements and switching control for the motor opening contactor MMK, and controlling the inverter INV based on the switching operation beforehand detection signal.
DRIVE CONTROL DEVICE OF ALTERNATING-CURRENT MOTOR
ANTRIEBSSTEUERVORRICHTUNG FÜR EINEN WECHSELSTROMMOTOR
DISPOSITIF DE COMMANDE DE PILOTAGE D'UN MOTEUR À COURANT ALTERNATIF
2016-10-12
Patent
Electronic Resource
English
IPC: | H01H Elektrische Schalter , ELECTRIC SWITCHES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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