Patent ID: 11919406
Assignee: ABB E-MOBILITY B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 12:
13. A method for controlling a power transfer system for exchanging electric power between an electric power system and a battery of an electric vehicle, said power transfer system comprising:
a transmitter-side power sub-system comprising a first rectifying stage electrically coupleable with said electric power system, a DC-bus stage electrically coupled with said first rectifying stage and adapted to provide a first DC power and an inverter stage electrically coupled with said DC-bus stage and adapted to receive said first DC power and provide a first AC power;
a transmitter-side coil sub-system electrically coupled with said inverter stage and adapted to receive said first AC power, said transmitter-side coil sub-system comprising a transmitter coil adapted to receive a first AC current;
a receiver-side coil sub-system comprising a receiver coil inductively coupleable with said transmitter coil, said receiver-side coil sub-system being adapted to exchange an AC power with said transmitter-side coil sub-system;
a receiver-side power sub-system comprising a second rectifying stage electrically coupled with said receiver-side coil sub-system and adapted to exchange a second AC power with said receiver-side coil sub-system, said second rectifying stage being electrically coupleable with said battery and adapted to provide a second DC power to said battery;
said method comprising controlling the second DC power received by said battery and providing fast responsive control functionalities of the first DC power provided by said DC-bus stage by controlling operation of at least one of said first rectifying stage and said DC-bus stage,
wherein the method further comprises:
controlling, via a first control arrangement, the first DC power received by said DC-bus stage by receiving and processing, via the first control arrangement, a first signal indicative of desired values for said first DC power and a first detection signal indicative of measured values of said first DC power and by providing a first control signal to control operation of at least one of said first rectifying stage and said DC-bus stage based on the first signal and the first detection signal; and
controlling, via a second control arrangement, the second DC power received by said battery by receiving and processing, via the second control arrangement, a second signal indicative of desired values for said second DC power and a second detection signal indicative of measured values of said second DC power and providing said first signal based on the second signal and the second detection signal.