The invention relates to a power conversion topology (1) for charging a HV-battery (4) and/or a LV-battery (5) of an electric vehicle (2). The power conversion topology (1) comprises a three-winding transformer (8) for connection to a utility grid (3), to the HV-battery (4) and to the LV-battery (5). In addition, the power conversion topology (1) comprises a GR-rectifier (9) and a GR-capacitor (7) on the GR-side; an HV-rectifier (10), an HV-filter (11) and an HV-capacitor (12) on the HV-side; and an LV-rectifier (13) and an LV-filter (14) on the LV-side.According to the invention, the power conversion topology (1) comprises an auxiliary inductor (15) connected between the LV-rectifier (13) and the LV-filter (14). In addition, the power conversion topology (1) comprises a blocking circuit (16) with a transformer (17) and a diode (18) connected between the auxiliary inductor (15) and the GR-capacitor (7) or the HV-capacitor (12).The invention also relates to a method (21) for operating the power conversion topology (1).
POWER CONVERSION TOPOLOGY
LEISTUNGSUMWANDLUNGSTOPOLOGIE
TOPOLOGIE DE CONVERSION DE PUISSANCE
20.03.2024
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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