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Converter station pole control system inter-electrode and inter-station communication redundancy apparatus and inter-electrode and inter-station communication method

A technology of polar control system and redundant device, applied in circuit devices, emergency protection circuit devices, parts of emergency protection devices, etc. Reliability of HVDC Transmission System and Other Issues

Active Publication Date: 2017-05-10
QUJING BUREAU OF SUPERVOLTAGE POWER TRANSMISSION CHINA SOUTHERN POWER GRID
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the inter-station communication of the pole control system of the high-voltage direct current transmission converter station in the control and protection system of the high-voltage and ultra-high-voltage direct current transmission projects that has been put into operation has not realized a completely redundant design. Redundancy design flaws are nothing more than guaranteeing the reliability of HVDC transmission system operation

Method used

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  • Converter station pole control system inter-electrode and inter-station communication redundancy apparatus and inter-electrode and inter-station communication method
  • Converter station pole control system inter-electrode and inter-station communication redundancy apparatus and inter-electrode and inter-station communication method
  • Converter station pole control system inter-electrode and inter-station communication redundancy apparatus and inter-electrode and inter-station communication method

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Embodiment 1

[0025] The present invention proposes a redundant inter-pole and inter-station communication device of the pole control system of a converter station, which is applied to a DC high voltage or UHV control and protection system. The inter-pole and inter-station communication redundancy device of the pole control system of a converter station includes There are two parts, the duty system and the backup system. Each pole includes the main channel and the backup channel. The duty system includes the first duty communication board, the backup system includes the first backup communication board, and the duty system also includes the second duty communication board.

[0026] Specifically, both the first on-duty communication board and the second on-duty communication board include a first communication port and a second communication port, and the inter-station communication of the pole control system uses the first communication port of the first on-duty communication board as the fir...

Embodiment 2

[0038] The present invention also proposes a method for inter-pole and inter-station communication using the above-mentioned inter-pole and inter-station communication redundancy device of the pole control system of the converter station. The method includes:

[0039] Step 1. Make sure that when the on-duty system is running normally, the backup system will be switched to the test state when the preset failure occurs. Conditions such as failures are switched to test status. The preset fault conditions here include serious faults, emergency faults or other faults that need to be switched over for maintenance.

[0040] Step 2, the inter-station communication is completed through the first communication port of the first on-duty communication board as the first channel and through the first communication port of the second on-duty communication board as the second channel. Taking the NR1127A communication board as the specific manifestation of the first on-duty communication boa...

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Abstract

The invention brings forward a converter station pole control system inter-electrode and inter-station communication redundancy apparatus, which is applied to a DC high voltage or super high voltage control protection system. , The converter station pole control system inter-electrode and inter-station communication redundancy apparatus comprises an on-duty system and a standby system. Each pole includes a main channel and a standby channel. The on-duty system comprises a first on-duty communication board card. The standby system comprises a first standby communication board card. The on-duty system also comprises a second on-duty communication board card. New communication board cards are additionally adopted and corresponding communication channels are arranged adaptively, so a communication redundancy design is effectively improved, and the reliability of running of a high voltage DC power transmission system is improved. The invention also brings forward an inter-electrode and inter-station communication method on the basis of the above apparatus.

Description

technical field [0001] The invention relates to the field of high-voltage direct current transmission, in particular to a communication redundant device between poles and stations of a pole control system of a converter station and a communication method between poles and stations of a pole control system of a converter station. Background technique [0002] The pole control system of the converter station is the core of the control and protection system of the high-voltage and ultra-high DC transmission project. Inter-electrode communication and inter-station communication of the pole control system are of great significance to the stable and reliable operation of the pole control system. Redundant communication between two sets of pole control systems is an important link to ensure 100% availability of the pole control system. Rely on inter-pole communication to complete the bipolar power control mode, coordinate bipolar power distribution, rely on inter-station communicat...

Claims

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Application Information

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IPC IPC(8): H02H1/00H02H7/26
CPCH02H1/0069H02H7/261
Inventor 杜天成李国艮李超夏子军丁汉林肖耀辉张杰
Owner QUJING BUREAU OF SUPERVOLTAGE POWER TRANSMISSION CHINA SOUTHERN POWER GRID
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