Abb Schweiz Ag

Roman Bosshard

Johann Kolar

Francisco Canales

Beat Guggisberg

Guanghai Gong

An exemplary inductive power transfer system having a transmitter coil and a receiver coil. A transmitter-side power converter having a mains rectifier stage powering a transmitter-side dc-bus and controlling a transmitter-side dc-bus voltage U. A transmitter-side inverter stage with a switching frequency fsupplies the transmitter coil with an alternating current. A receiver-side power converter having a receiver-side rectifier stage that rectifies a voltage induced in the receiver coil and powering a receiver-side dc-bus and a receiver-side charging converter controlling a receiver-side dc-bus voltage U. Power controllers that determine from a power transfer efficiency of the power transfer, reference values U*, U* for the transmitter and receiver side dc-bus voltages. An inverter stage switching controller controls the switching frequency fto reduce losses in the transmitter-side inverter stage.

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Aarau, Switzerland

Roman Bosshard