Coastal electricity system for supplying power to ship, and electrical system for ship

A technology of electrical system and power system, applied in the field of electrical system, can solve the problems of huge structure of shore power system equipment, adverse effects of power grid, high cost of electricity, etc., to reduce the layout space of the wharf, reduce the number of cables, and save electricity costs Effect

Inactive Publication Date: 2016-07-06
国能浙江宁海发电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the shore power system equipment is huge, the structure is complex and cumbersome, the cos

Method used

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  • Coastal electricity system for supplying power to ship, and electrical system for ship
  • Coastal electricity system for supplying power to ship, and electrical system for ship

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Embodiment

[0037] see figure 1 , figure 2 , the present embodiment provides a shore power system for supplying power to ships and an electrical system 2 for ships 3 using the shore power system for power supply. The shore power system includes two isolation transformer 11, six shore power boxes 12, a current direction protection device and an ECS.

[0038] The input end of the isolation transformer 11 is used to connect the power supply output end 13 of the utility power of the thermal power plant, and the output end of the isolation transformer 11 is used to connect the shore power box 12 .

[0039] The isolation transformer 11 of this embodiment may adopt a 1:1 transformer, and use the isolation transformer 11 to perform voltage regulation and safety isolation. In order to affect the impact on the switch on the ship 3 when the shore power system supplies power, the short-circuit current of the high-voltage cable on the ship can be reduced by using a high-impedance isolation transfor...

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PUM

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Abstract

The invention discloses a coastal electricity system for supplying power to ships, and an electrical system for ships. The coastal electricity system comprises at least one isolation transformer with an automatic voltage regulating function, at least one costal power box and a control system, wherein the input end of the isolation transformer is used for connection with the power output end of factory power of a thermal power plant, the output end of the isolation transformer is used for connection with the coastal power box; the coastal power box is used for connection with power supply interfaces of the ships through cables and connection with electrical signal interfaces of the ships through signal lines; and the control system is used for receiving electrical signals of the ships, transmitted by the coastal power box and coastal power box information, and according to the electrical signals and the coastal power box information, controlling the coastal power box so as to conduct or break connection between the power supply interfaces and the power output end. The coastal electricity system provided by the invention has the advantages of being simple in structure and easy to operate, saving electricity bills for the ships and being safe and reliable.

Description

technical field [0001] The present application relates to a shore power system for supplying power to ships and an electrical system for ships. Background technique [0002] Shore power supply technology means that when the ship is in port, the generator power supply on the ship is disabled, and the shore power of the (port area) wharf supplies power to the electrical equipment on the ship through cables. The study of shore power supply technology in ports has very positive significance for energy saving and emission reduction, and the construction of green ports. It is an important measure to solve the pollution of port waters caused by ships docking due to the power generation on board. [0003] As a technology that can reduce port pollutant emissions, marine shore power projects are receiving more and more attention. However, the existing shore power system has huge equipment and complex structure, high electricity cost, poor safety and easy to cause adverse effects on t...

Claims

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Application Information

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IPC IPC(8): H02J9/06
Inventor 邬金海邓晓峰刘卫国张旭王兴光丰暴周志刚
Owner 国能浙江宁海发电有限公司
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