Efficiency Improvement in Capacitive Wireless Charging Through Modeling and Topology Optimization

Abstract

: This paper dwells upon the most essential mechanisms on optimising the performance of Capacitive Wireless Power Transfer (CWPT) systems in order to overcome slack time in variable coupling capacitances, dielectric losses, and parasitic parameters in mid to high-frequency conditions. An optimization scheme that combines structure, circuit and control is formed. Arbitrative differences between series, parallel and LCC hybrid topologies of compensation in terms of anti-detuning capability, steady-state performance, and load adaptability are examined by comparing the possible scope of efficiency prediction techniques like equivalent circuit modeling, electromagnetic field simulation and data-driven modeling. The results of the experiment and simulation of the multi-plate structures, composite dielectrics, electric field focusing and adaptive control are summarized. The findings show that the optimal compensation topology with frequency-adaptive control can increase the average system efficiency with 5 to 15 percent relative to the traditional designs. Multi-plate array and low loss dielectrics would improve the stability of coupling and misalignment very much. In conclusion, the research identifies that multi-physics co-design, wide-bandgap semiconductors, and online control as controlled by artificial intelligence can all be regarded as fundamental vectors to high-efficiency CWPT systems.