A typical traction system that does not have a storage battery device for a direct-current power unit of a main circuit cannot ensure exciting energy necessary upon activation of an induction generator. Thus, there is a problem that the typical traction system cannot use a small, inexpensive, and highly reliable induction generator as a power generator. A railway vehicle traction system includes an induction generator to be driven by an engine, a first power converter for converting alternating-current power output from the induction generator into direct-current power, a smoothing capacitor for smoothing the direct-current power output from the first power converter, a second power converter for converting the direct-current power output from the smoothing capacitor serving as a direct-current voltage source into alternating-current power and driving an electric motor, storage battery means for supplying power to an on-vehicle control device, and a contactor that is connected between the storage battery means and the smoothing capacitor. By closing the contactor, the smoothing capacitor is charged by the storage battery means, and whereby a current is supplied to the induction generator in order to start an operation of generating power using power charged in the smoothing capacitor.
Railway vehicle traction system
Schienenfahrzeugantriebssystem
Système de traction d'un véhicule ferroviaire
2018-10-03
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
Railway vehicle traction transmission system and railway vehicle
European Patent Office | 2022
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