A wireless power transfer (WPT) system for an electrical vehicle (EV) may include a ground assembly (GA) having a GA transmitter coil, a vehicle assembly (VA) having a VA receiver coil magnetically coupled to the GA transmitter coil, a compensation strategy stage including a parallel-series compensation network to obtain a voltage VVA in the VA receiver coil proportional to an effective current Ip_rms in the GA transmitter coil, a rectifier in the VA to obtain a continuous voltage Vdc_VA, and a control strategy stage with a voltage control loop and a current control loop. The control strategy stage may provide a control command to regulate voltage in the VA to adjust the continuous voltage Vdc_VA based on a reference DC link voltage. A DC link of a conductive charger of the EV may be regulated with the adjusted continuous voltage Vdc_VA during an inductive charging process of the EV. The rectifier may be connected to the DC link of the conductive charger of the EV.
WIRELESS POWER TRANSFER SYSTEMS FOR ELECTRIC VEHICLES
2020-08-06
Patent
Electronic Resource
English
IPC: | 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 / 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 / H04B TRANSMISSION , Übertragung |
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