High-low voltage output ship shore power supply device

Abstract

The invention discloses a high-low voltage output ship shore power supply device which comprises a high-voltage input switch cabinet, a low-voltage input switch cabinet, a phase-shifting transformer cabinet, a unit cabinet, a filtering cabinet, an isolation transformer, a high-voltage output switch cabinet, a low-voltage output switch cabinet, a grid-connected cabinet and a control cabinet. The phase-shifting transformer cabinet is connected to the high-voltage input switch cabinet and the low-voltage input switch cabinet; the unit cabinet is connected to the phase-shifting transformer cabinet; the filtering cabinet is connected to the unit cabinet; the isolation transformer cabinet is connected to the filtering cabinet; the output of the isolation transformer is connected to the low-voltage output switch cabinet and the high-voltage output switch cabinet; the grid-connected cabinet is connected to the low-voltage output switch cabinet and the high-voltage output switch cabinet; and the control cabinet can control the high-voltage input switch cabinet, the low-voltage input switch cabinet, the high-voltage output switch cabinet, the low-voltage output switch cabinet, the grid-connected cabinet and the unit cabinet. The device has the advantages of good power supply system adaptability and safe and stable grid-connected splitting.

Description

technical field [0001] The invention relates to the technical field of ship power supply, in particular to a ship shore power supply device with high and low voltage output. Background technique [0002] With the vigorous development of modern shipping, more and more ships are docking at coastal ports. When the ship is docked at the port, the ship uses its own diesel generator to generate electricity for the use of electrical equipment on board. This power supply method not only increases the limited fossil energy consumption, but also emits a large amount of air pollutants and greenhouse gases, which has a very adverse impact on today's deteriorating environment. [0003] In order to solve the power supply problem during the docking of ships and reduce pollution, shore power supply technology has emerged as the times require. It uses the power grid of the port for power supply, and finally generates an output that meets the power demand of the ship through the shore power...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in the existing shore power supply device, on the one hand, the shore power supply and the ship power grid are connected and disconnected through the ship's own energy management system. , frequency instability, severe and even trigger the protection equipment on board, causing ship power outage accident; A high and low voltage output ship shore power supply device for the problem

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