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 0:
1. A power transfer system for exchanging electric power between an electric power system and a battery of an electric vehicle 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 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;
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; and
one or more receiver-side controllers adapted to control operation of said receiver-side coil sub-system and receiver-side power sub-system, said transmitter-side and receiver-side controllers adapted to mutually communicate through a wireless communication channel,
wherein said transmitter-side and receiver-side controllers implement a control architecture including control arrangements adapted to control said second DC power received by said battery as a function of the operating temperatures measured by said first and second temperature sensing arrangements,
wherein said control architecture comprises:
a first control arrangement adapted to:
receive and process at least one of said first and second temperature detection signals and a first power reference signal for said second DC power;
provide a second power reference signal for said second DC power; and
calculate 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; and

a second control arrangement adapted, to control said second DC power received by said battery, to:
receive said second reference power signal from said first control arrangement and
process said second power reference signal and provide a first control signal to control operation of said first rectifying stage and said DC-Bus stage, thereby controlling said second DC power received by said battery.