Research on miniaturized power transmission system of ROV

Abstract

As the basic guarantee for power distribution, navigation control, motion control and underwater operation of ROV, power transmission system provides energy security for ROV. Reasonable power transmission system design is an important guarantee for ROV comprehensive performance. In the design of the power transmission system, the high-voltage and power-frequency transmission has the characteristics of small transmission current but large volume of underwater transformer. The medium-voltage and medium-frequency transmission has the characteristics of small volume but low transmission efficiency of the underwater transformer. In order to reduce the energy loss caused by the long-distance transmission of medium-voltage and medium-frequency power electricity in the armored cable, reduce the volume of the underwater transformer, and solve the conflict between the efficiency and the volume, this paper presents an ROV power transmission method based on matrix transformation. This method conducts the long-distance transmission in the armored cable by the high-voltage and power-frequency method so as to reduce transmission loss. By increasing the transmission frequency in the underwater end, the volume of the underwater transformer is reduced under the condition of ensuring the transmission efficiency. In this way, the space occupied by the transformer on the ROV can be reduced to meet the application requirements of the ROV underwater transformer device with small volume, high power and efficient transmission.