针对煤矿井下绞车供电问题,设计了一种长距离自动巡检绞车无线供电系统,重点介绍了该系统的无线供电模式,并通过理论分析得出系统的输出功率、输出效率随原边线圈内阻的增大而减小,随逆变器开关频率的增大而增加;根据该结论及井下绞车长距离导轨的实际情况,设计了分段供电模式。仿真与实验结果验证了该系统的可行性。 Aiming at the power supply problem of coal mine winch, a wireless power supply system for long-distance automatic inspection winch was designed. The wireless power supply mode of the system was mainly introduced. The output power of the system was obtained through theoretical analysis. Increases with the increase of the switching frequency of the inverter. According to the conclusion and the actual situation of the long-distance guide rail of underground winch, the section power supply mode is designed. Simulation and experimental results verify the feasibility of the system.