Circuit design of compensation for contactless power system of AUV

Owing to the separate structure, low coupling coefficient and limited power factor of the contactless power system of AUV(Autonomous Underwater Vehicle), it is necessary to apply compensation circuits for maximizing power factor and increasing the efficiency of power transmission. In deep sea, the magnetic core of this system would deviate with the impact of water flow, on which condition the coupling coefficient may change, power factor of system decreases and power transmission is affected. This paper discusses the impacts of water flow to various compensation circuits, and proposes the common method of designing the compensation circuit for contactless underwater power system of AUV.