High voltage ship shore power source grid-connection system

Abstract

The invention relates to a high voltage ship shore power source grid-connection system which includes a high voltage incoming cabinet, an output voltage cabinet, an inductor, a feed high voltage cabinet, and a high voltage ship shore power source which is connected to the same grid. The high voltage incoming cabinet has an incoming end which is connected to the high voltage of a port power distribution station. The high voltage incoming cabinet has an outgoing end which is connected to the high voltage ship shore power source. The high voltage ship shore power source has an output end which is connected to the output high voltage cabinet. The output high voltage cabinet is connected to the inductor. The inductor is connected to the feed high voltage cabinet. According to the invention, based on actual power usage of an anchored ship, the system can automatically be connected to the high voltage ship shore power source, and addresses the problem of insufficient power supply of the small-capacity high voltage ship power supply of the anchored single ship.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a high-voltage ship shore power grid-connected system. Background technique [0002] With the environmental protection laws of various countries, especially European and American countries and some Asian countries must stop the use of shore power for ship auxiliary power generation after berthing ships, the Chinese government and various local governments have also issued relevant regulations and support and subsidy policies. Encourage the use of shore power for ships calling at ports. In recent years, the ship shore power project has developed rapidly and vigorously. Ship shore power has been used in ports of all sizes across the country. However, at present, high-voltage ship shore power supplies at home and abroad are mainly concentrated in small and medium capacities. Ocean-going ships consume a lot of electricity when they dock at the dock. The power supply of ships...

AI Technical Summary

Problems solved by technology

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a high-voltage ship shore power grid-connected system. The invention performs automatic grid-connection of the high-voltage ship shore power power supply according to the actual power consumption of the berthing ship, and solves the problem of single power supply to the berthing ship. The problem of insufficient power supply capacity of the small-capacity high-voltage ship power supply of the port ship, the present invention adopts double closed-loop control of voltage and frequency, collects and adjusts various parameters in real time, and solves the problem that the high-voltage ship power supply is automatically connected to the grid to achieve parallel operation

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