Abstract:

This paper analyzes the generation power of the driving electric motor in the underway replenishment system. Based on the comparison of technical characteristics of battery, superconducting coil, flywheel and Supercapacitor, choses the Supercapacitor energy storage system to recoverying and utilizing of generation power. The author discusses the design and application of Supercapacitor energy storage system , calculate the basic design parameters . In the underway replenishment process, The distance of the supply ship and the receiving ship is changing, The electric motor of alongside replenishment equipment is repeatedly switched between the power-driven and the power-generated mode. The motor in the power-generated state feedback large generation power to the inverter DC bus, affect the normal work of the replenishment system and pollute the power grid. The Supercapacitor has high power density, high charge and discharge power, long service life and wide operating temperature range, ideally suited for use in the equipments that recoverying and releasing power repeatedly,for reducing system power and the pollution to the grid, also save energy.

Key words: supercapacitor, energy storage, alongside replenishment