A horizontal marine grounding electrode arranged around the island

A grounding electrode, horizontal technology, applied in the field of horizontal marine grounding electrode, can solve the problems of great marine life influence, affecting operation reliability, high operation and maintenance cost, and achieve flexible layout, easy maintenance and even potential distribution. Effect

Active Publication Date: 2021-09-17
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the current ocean grounding pole scheme usually arranges the diversion center on the coast. In order to reduce the impact on shore equipment and facilities, the pole is introduced into the deep sea area through a long submarine cable. The pole is generally not Fixed, it will move with the seabed current, which will affect the reliability of operation. It must be salvaged ashore during maintenance and overhaul. The operation is difficult and the operation and maintenance cost is high. The exposed pole will also affect marine life.

Method used

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  • A horizontal marine grounding electrode arranged around the island
  • A horizontal marine grounding electrode arranged around the island

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 and figure 2 As shown, an ocean-level ground electrode arranged around an island in this embodiment mainly includes a feed electrode 1 and a power distribution device 4 .

[0023] The power distribution device 4 is arranged on the isolated island 6 as a diversion center, and mainly includes reactors, switches, switches, busbars, monitoring devices, etc., which are existing technologies, and are used to distribute current to each feed electrode 1, here No longer.

[0024] The isolated island 6 is used as the grounding pole site, and it is chosen to be far away from the densely populated areas such as ports and vacation beaches. The onshore converter station and the isolated island 6 are connected by a hi...

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Abstract

The invention discloses a marine horizontal grounding electrode arranged around an island, which comprises a grounding electrode power distribution device and a grounding electrode feeder electrode; It is laid horizontally on the seabed around the isolated island, and is electrically connected to the grounding electrode power distribution device. The invention uses an independent island as the ground electrode site, arranges the diversion center on the island, and fixes the feed electrode in the submarine channel around the island, which solves the problems of difficult land site selection and inconvenient installation and maintenance of the ocean ground electrode, and has the advantages of safety The advantages of reliability and easy maintenance.

Description

technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a horizontal marine grounding electrode used for UHV direct current transmission around the island. Background technique [0002] At present, dozens of high-voltage direct current transmission lines have been formed in my country, and the receiving ends are relatively concentrated, mainly in the Yangtze River Delta and Pearl River Delta regions, where the population is dense and the land resources are tight. In addition, the earth return grounding pole currently used has a great impact on the environment of surrounding facilities, resulting in serious DC bias in surrounding substations and excessive pipe-to-ground voltage in some oil and gas pipelines. It has caused great difficulties in the site selection of the new DC grounding electrode, which seriously restricted the implementation of the project. [0003] For this reason, the marine grounding electrode techno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66
CPCH01R4/66
Inventor 熊纽高嘉周全王立平
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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