A High Anti-Offset Wireless Power Transfer Method for Rotary Steerable Systems

In order to solve the problem of large output power fluctuation caused by coil offset when the WPT system is working and further improve the anti-offset performance of the WPT system, a double-coupled LCC-S topology wireless power transfer system is designed. Through the magnetic coupling mechanism composed of two transmitting coils and a receiving coil, when the coil position deviation is 36%, the mutuality
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change amplitude is about 10%, so as to achieve constant voltage output and anti-offset requirements.