Patent ID: 11945317
Assignee: ABB E-MOBILITY B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 8:
9. 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 and a first temperature sensing arrangement configured to provide first temperature detection signals indicative of operating temperatures of said transmitter-side coil sub-system;
one or more transmitter-side controllers adapted to control operation of said transmitter-side power sub-system and said transmitter-side coil sub-system;
a receiver-side coil sub-system comprising a receiver coil inductively coupleable with said transmitter coil and a second temperature sensing arrangement configured to provide second temperature detection signals indicative of operating temperatures of said receiver-side coil sub-system, said receiver-side coil sub-system being adapted to exchange an AC power with said transmitter-side coil sub-system; and
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;
one or more receiver-side controllers adapted to control operation of said receiver-side coil sub-system and receiver-side power subsystem, said transmitter side and receiver side controllers adapted to mutually communicate through a wireless communication channel,
wherein said method is operable by a control architecture comprising said transmitter-side and receiver-side controllers, said method for controlling said second DC power received by said battery as a function of the operating temperatures measured by said first and second temperature sensing arrangements, said method comprising:
receiving and processing, by a first control arrangement of said control architecture, at least one of said first and second temperature detection signals and a first power reference signal for said second DC power;
providing, by said first control arrangement, a second power reference signal for said second DC power;
calculating, by said first control arrangement, said second power reference signal by correcting said first power reference signal based on at least one of said first and second temperature detection signals;
controlling, by a second control arrangement, said second DC power received by said battery;
receiving, by said second control arrangement, said second reference power signal from said first control arrangement and
processing, by said second control arrangement, said second power reference signal and providing a first control signal to control operation of said first rectifying stage and said DC-Bus stage, thereby controlling the second DC power received by said battery.