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Automatic recovery method for power loss of shipping grid

A technology of automatic recovery and power grid, applied in the field of ship power system

Active Publication Date: 2012-01-11
SHANGHAI SHIP & SHIPPING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide an automatic recovery method for ship power grid failure. The uniqueness and on-demand of the network group

Method used

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  • Automatic recovery method for power loss of shipping grid
  • Automatic recovery method for power loss of shipping grid
  • Automatic recovery method for power loss of shipping grid

Examples

Experimental program
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Embodiment Construction

[0017] Such as figure 1 As shown, this is the circuit structure diagram of the ship power station system. In this embodiment, 4 units (respectively Unit 1, Unit 2, Unit 3, and Unit 4) are used. Each unit consists of a controller 101, a main switch 102 and a generator 103. One end of the main switch 102 is connected to the grid bus 200, and the other end is connected to the generator 103; the controller 101 has a grid voltage input terminal, a closing command output terminal, One interlock signal output terminal and three interlock signal input terminals, the closing command output terminal is connected to the main switch 102, and the interlock signal output terminal is connected to the interlock signal input terminals of other units.

[0018] Such as figure 2 As shown, once the controller 101 in each unit detects the power failure of the power grid, it sends a start command to the generator 103 in the unit. After the generator 103 is started successfully, the controller 101 read...

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PUM

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Abstract

The invention discloses an automatic recovery method for power loss of a shipping grid, comprising the processes that a plurality of sets compete to start when the grid loses power; and any one of the machine groups issues an instruction of switching on and issues a signal of interlocking after starting, wherein any one of sets determines whether to execute the instruction of switching on or not according to whether the signal of interlocking issued by other sets is received when issuing the instruction of switching on; the set executes the self instruction of switching on when not receiving the signal of interlocking issued by other sets; and the et cancels the instruction of switching on of the set when receiving the signal of interlocking issued by other sets and issues the instructionof switching on again according to the priority of self set and the set issuing the signal of interlocking. The automatic recovery method for power loss of the shipping grid ensures the rapidity of power loss treatment of the shipping electric fence, solves the problem of simultaneous switching on of the plurality of sets, and ensures the unicity and on-call of a switching-on net casting machine group.

Description

Technical field [0001] The invention belongs to the technical field of ship power systems, and in particular relates to a method for restoring a ship's power grid from power loss. Background technique [0002] Ship power system can be divided into four parts: power generation, transmission, distribution and load. The power generation part is mainly to provide electrical energy for ships. It usually consists of main power station, emergency power station (used on civil ships), storage battery (optional) and shore power ( Used when docking) composition. When the ship is navigating normally, the main power station supplies power to all electrical equipment. When the main power station fails and the main busbar loses power, the main switchboard sends a power loss signal to the emergency switchboard, starts the emergency power station, and sends the emergency load powered by. When the ship docks, the shore power supplies power to the ship's load. [0003] When the main power station ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
Inventor 李勇
Owner SHANGHAI SHIP & SHIPPING RES INST