An electric vehicle controller 50 includes an inverter 11 that drives a motor 12 by receiving power supplied from an overhead line 1, a brake chopper circuit 8 that includes a switching device 6 and a braking resistor 7 and is connected in parallel with the inverter 11, a voltage detector 9 that detects a bus voltage applied to DC buses 4a and 4b, and a control unit 13 that performs power consumption control of causing the braking resistor 7 to consume regenerative power supplied from the motor 12 and overvoltage suppression control of suppressing the bus voltage from being excessive. The control unit 13 controls the switching device 7 such that a second duty ratio used at the time of performing the overvoltage suppression control is lower than a first duty ratio used at the time of performing the power consumption control.
CONTROL DEVICE FOR ELECTRIC ROLLING STOCK
STEUERUNGSVORRICHTUNG FÜR ELEKTRISCHES ROLLMATERIAL
DISPOSITIF DE COMMANDE POUR MATÉRIEL ROULANT ÉLECTRIQUE
2019-04-03
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 |