The present invention aims at suppressing the ripples of discharge and charge currents generated via switching control of a power semiconductor device in a battery. The object of the present invention can be achieved by providing a power converter comprising an inverter, an AC load driven by the inverter, a battery absorbing a regeneration electric power of the AC load, and a DC-DC converter controlling the electric power absorbed by the battery, wherein a capacitor for absorbing current ripples superposed in the DC-DC converter is connected in parallel with the battery, and wherein the inductance of the electric wiring disposed between the capacitor and the DC-DC converter is set to be smaller than the inductance of the electric wiring disposed between the battery and the DC-DC converter.
Power converter and power converter of rolling stock
Leistungswandler und Leistungswandler für Schienenfahrzeug
Convertisseur de puissance et convertisseur de puissance de véhicule ferroviaire
25.12.2019
Patent
Elektronische Ressource
Englisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
Power converter, electric rolling stock and method for controlling sequence test
Europäisches Patentamt | 2017
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