Two-stage power distribution double-loop network system of ship main power station

A dual-ring network and power station technology, which is applied in the direction of power network operating system integration, information technology support systems, electrical components, etc., can solve problems such as safe and reliable power supply for ships, and achieve the effects of facilitating cable laying, improving economy, and improving reliability.

Active Publication Date: 2016-07-06
JIANGSU ZHENJIANG SHIPYARD GROUP
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Problems solved by technology

[0011] The purpose of the present invention is to provide a two-level power distribution double-ring network system for the main power station of a ship, which solves the problems that the existing technology cannot fully satisfy the safety and reliability of ship power supply, energy saving and emission reduction, cost reduction and efficiency increase

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  • Two-stage power distribution double-loop network system of ship main power station
  • Two-stage power distribution double-loop network system of ship main power station

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Embodiment Construction

[0023] The two-level power distribution double-ring network system of the ship's main power station is an innovative design for the electrical main wiring on the supply side of the ship power grid. Line ring.

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, the dotted line between the cabinets of the high-voltage cabinet indicates that it is a completely separated power distribution cabinet, and the withdrawable switchgear of each cabinet is equipped with a mechanical interlock device that is effective in both the working position and the disconnected position ("five defenses" function: a. Prevent the disconnecting contact from being accidentally pulled and closed with load; b. Prevent the circuit breaker (or high-voltage load switch) from being closed before the live grounding switch and the grounding switch are not opened; c. Prevent mistaken entry into th...

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Abstract

The invention discloses a two-stage power distribution double-loop network system of a ship main power station, namely the system comprises a primary power distribution unit and secondary power distribution unit. The primary power distribution unit is a high-voltage power distribution unit, and the secondary power distribution unit is a low-voltage power distribution unit. A high-voltage power distribution line and a low-voltage power distribution line are loop lines. The two-stage power distribution double-loop network system performs functions of improving power supply reliability and improving power supply capability of the main power station in an emergency. In the second power distribution unit, a low-voltage power generator set is utilized for supplying a standby main power supply. When the primary power distribution unit fails caused by any reason, the secondary power distribution unit can satisfy an electric power consumption requirement in navigation of the ship, thereby ensuring high navigation safety. When high-voltage power generators in the primary power distribution unit fail totally, low-voltage main power generators in the secondary power distribution unit can supply standby high-voltage main power supply to a high-voltage power distribution cabinet through boosting by a main power distribution transformer, thereby sustaining normal equipment operation of the power distribution unit in each load area. Compared with a traditional low-voltage ship power supply line, the two-stage power distribution double-loop network system of the ship main power station has advantages of facilitating energy saving and emission reduction, improving voltage quality, reducing damage caused by shortcircuit and facilitating cable laying.

Description

technical field [0001] The invention relates to a two-stage power distribution double-ring network system for a main power station of a ship, and belongs to the technical field of ship power supply devices. Background technique [0002] The ship's main power station is an important device for generating and distributing electric energy in the ship's power system. It consists of a generator and its prime mover, switchboard, transformer and auxiliary equipment. [0003] The International Convention for the Safety of Life at Sea (SOLAS) issued by the International Maritime Organization (IMO) and the ship construction regulations issued by the maritime departments of various countries have a series of regulations and requirements for the ship's power system in order to ensure the safety of ships at sea. The regulations stipulate that each ship must be equipped with a main power supply, which should be composed of at least two mutually independent generator sets. The capacity of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46H02J9/08
CPCH02J3/46H02J9/08Y02B70/30Y04S20/20
Inventor 陈家兴温莉夏进周洋
Owner JIANGSU ZHENJIANG SHIPYARD GROUP
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