To address the issues existing in current multi-load wireless power transfer(WPT)systems

such as the requirement for multiple sets of transmitter circuits

the need to switch compensation topologies

and low system efficiency

a dual-load simultaneous wireless power transfer system based on dual-frequency resonant compensation was proposed. The HMW-PWM control method was adopted to achieve independent power control of the system. First

a dual-frequency magnetically coupled wireless power transfer system structure was designed

and the basic principle of the system was analyzed. Subsequently

an equivalent circuit model of the system was established

and the simultaneous power supply characteristics of the system were analyzed. Then

a dual-frequency resonant compensation network and its parameter design method were proposed

a magnetically coupled mechanism was designed

the influence of the coupling coefficient of the two receiver coils on energy distribution was analyzed

a system simulation model was established

and the system efficiency was analyzed. Finally

an 80 W experimental platform was built to verify the theoretical analysis. Experimental results show that the proposed system successfully achieves simultaneous power supply for dual loads and realizes independent power control(IPC)

with a system transmission efficiency of 94.8%. The system is compatible with different operating frequency requirements

featuring independent power transmission channels and advantages of a simple structure

small volume

and high efficiency.