Research on Wireless Power Transmission System Based on Non-Uniform Switchable Transmitting Coil Array

Wireless power transmission technology significantly enhances the flexibility and safety of power delivery to loads, eliminating the limitations imposed by cables. To address system performance issues that arise from positional offsets in mobile load power supply, this paper proposes a wireless power transmission system utilizing a non-uniform, switchable transmitting coil array. The study begins by developing a transmission topology based on this innovative coil array design, providing a foundation for improved performance in dynamic load conditions. Secondly, considering the state of the multi-charge switching switch, a unified circuit model with free switching of multiple transmitting coils is established. Furthermore, the anti-offset characteristics of the system under different transmitter coil array switching control are studied, and the effects of different switching modes on system efficiency are compared and analyzed. The flexibility of the system to different load access positions can be improved by adjusting the switching mode.