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Temporary communication method and microwave relay-opgw optical fiber communication link between a substation under construction and an established substation or grid node

A technology for substations and nodes, applied in optical fiber transmission, circuit devices, electrical components, etc., can solve the problems affecting the security and reliable operation of the power grid communication network, the interruption of OPGW communication optical fibers, and the limited time for joint commissioning. influence, effect

Active Publication Date: 2017-02-08
STATE GRID FUJIAN ELECTRIC POWER CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, due to the construction time node arrangement of power transmission and transformation projects, the communication professional OPGW optical fiber can only enter the substation under construction at the "last moment" 1 to 2 days before the substation will be put into operation and power transmission, resulting in The whole process of joint commissioning of equipment and devices related to secondary professional relay protection, dispatching automation and other related services is very tight and limited, and it has become a "stuck neck" node for infrastructure projects to be put into production and power transmission on schedule
[0003] At present, most power transmission substation projects are switched from the original lines to new substations. There are many lines crossing lines of different voltage levels during the construction of line interruptions, and the construction time of power outages is long. This often results in long-term interruptions of OPGW communication optical fibers and open loops of communication networks during operation, which seriously affects Safe and reliable operation of grid communication network

Method used

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  • Temporary communication method and microwave relay-opgw optical fiber communication link between a substation under construction and an established substation or grid node

Examples

Experimental program
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Embodiment 1

[0020] A method of temporary communication between the substation under construction and the substation that has been built as shown in Figure 1. 1. The terrain near the 220kV Wudian substation in Fuzhou is selected to be relatively high, and there is no barrier between the 220kV Wudian substation under construction. 220kV Linzhong-Shangjing transmission line #39 iron tower with good condition and OPGW optical fiber connection box, 2. Provide SDH digital microwave equipment at both ends of one hop and configure two STM-1 optical interface units. 3. In 220kV Wu The SDH digital microwave equipment antenna and outdoor unit are installed in an unobstructed outdoor high place between the #39 iron tower of the 220kV middle radial line in the Diandian substation. The outdoor unit of the SDH digital microwave equipment is connected to the electrical port of the indoor optical unit of the microwave equipment through a coaxial cable , the optical interface unit of microwave equipment is ...

Embodiment 2

[0023] A microwave relay-OPGW optical fiber communication link, including SDH digital microwave equipment at both ends of a hop and two optical interface units, the SDH digital microwave equipment antenna and outdoor unit of the 110kV Moshi substation in Fuqing under construction are installed on the iron tower of the 110kV Moshi substation At high places (relative commanding heights / grid nodes), the outdoor unit is connected to the indoor optical interface unit through the coaxial cable, and the indoor optical interface unit is connected to the existing SDH optical interface through the optical fiber jumper. The SDH digital microwave equipment antenna and outdoor unit at the other end are installed on the high roof (relative commanding height) of Jingyang power supply station (grid node) in Fuqing City near the 110kV Moshi substation under construction, and the SDH digital microwave equipment outdoor unit on the roof of Jingyang power supply station The coaxial cable is connec...

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Abstract

The invention discloses a temporary communication method between a transformer substation under construction and a built transformer substation or a power grid node and a microwave relay-optical fiber composite overhead ground wire (OPGW) optical fiber communication link. A microwave relay communication method is temporarily added between the transformer substation under construction and the built transformer substation or the power grid node according to circumstances, so that the microwave relay- OPGW optical fiber communication link is formed. A PGW optical drawing-in 'last kilometer' problem is solved, and the method and the link have the advantages of simplicity, practicability, investment conservation, quickness in construction and the like.

Description

technical field [0001] The invention relates to a communication link construction, in particular to a temporary communication method and a microwave relay-OPGW optical fiber communication link between a substation under construction and an existing substation or grid node. Background technique [0002] For a long time, due to the construction time node arrangement of power transmission and transformation projects, the communication professional OPGW optical fiber can only enter the substation under construction at the "last moment" 1 to 2 days before the substation will be put into operation and power transmission, resulting in The time for joint commissioning of equipment and installations for secondary professional relay protection, dispatch automation and other related services is very tight and limited, and it has become a "stuck neck" node for infrastructure projects to be put into production and power transmission on schedule. [0003] At present, most power transmissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25H02J13/00
CPCY02B90/20Y04S40/124
Inventor 吴飞龙
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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