1. Optimal Excitation of Multi-transmitter Wireless Power Transfer System without Receiver Sensors
- Author
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Prasad Jayathurathnage, Fu Liu, Department of Electronics and Nanoengineering, Aalto-yliopisto, and Aalto University
- Subjects
010302 applied physics ,Physics ,business.industry ,020208 electrical & electronic engineering ,Transmitter ,Electrical engineering ,Coupling estimation ,02 engineering and technology ,Function (mathematics) ,01 natural sciences ,Multiple transmitter ,Power (physics) ,Position (vector) ,Electromagnetic coil ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Wireless power transfer ,business ,Excitation ,Voltage - Abstract
openaire: EC/H2020/736876/EU//VISORSURF The optimal excitation of multi-transmitter wireless power transfer systems is dependent on the position of the receiver (Rx), To maximize the output power and efficiency, the transmitter (Tx) coils closer to the Rx should have higher currents compared to the ones farther away. This paper presents a simple approach to determine the optimal excitation of individual Tx without using any measurement at the Rx side. The Tx coils are arranged to be uncoupled from adjacent Tx coils. In this configuration, the optimal current distribution in each Tx coil is a function of the mutual inductances of each Tx-Rx coil pair, which can be evaluated by analyzing the voltage measurements at Tx coils. The proposed approach is experimentally verified using a laboratory prototype.
- Published
- 2019
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