Research on Transmission Characteristics of MCR-WPT Systems Based on Chaotic Sparrow Search Algorithm

To solve the problem of low transmission efficiency in the magnetic coupled resonant wireless power transfer (MCR-WPT) system, a parameter design method based on chaotic sparrow search algorithm is proposed to optimize the transmission efficiency of the system. The circuit model of the two-coil MCR-WPT system is established, and the relationships among output power, transmission efficiency, frequency, coupling coefficient and load resistance are derived. The influence of frequency, coupling coefficient and load resistance on the output power and transmission efficiency of the system is studied and analyzed by the control variable method. The sparrow search algorithm is improved by using chaotic reverse learning strategy, and the three parameters were optimized by the improved algorithm, and the system parameter values corresponding to the optimal solution are obtained. Simulation results show that the transmission efficiency of the optimized MCR-WPT system can reach up to 91%.