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Protection function verification system and verification method of final circuit breaker in DC project

A technology of final circuit breaker and protection function, applied in the field of final circuit breaker protection function verification system of DC engineering

Active Publication Date: 2020-11-20
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a verification system for the final circuit breaker protection function of a DC project to solve the technical problem of full-scene coverage inspection of the circuit breaker protection program

Method used

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  • Protection function verification system and verification method of final circuit breaker in DC project
  • Protection function verification system and verification method of final circuit breaker in DC project
  • Protection function verification system and verification method of final circuit breaker in DC project

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Embodiment

[0034] refer to figure 1 As shown, the DC project final circuit breaker protection function verification system provided by this embodiment includes a control terminal 1, a transceiver terminal 2, a bus terminal 3 and an upper management device 4.

[0035] Wherein, the control terminal 1 is connected to the upper management device 4 (also called upper management software) in the PC (computer) through wired RS232 (speed 115200bit / s), so as to receive the control commands sent by the upper management device 4 and The command is sent to the transceiver terminal 2 within 10ms through wireless transmission, and can be sent to 30 transceiver terminals 2 to realize the extensive and fast transmission of control commands and ensure the efficiency and accuracy of verification. At the same time, the control terminal 1 is also used to receive self-management information reported by the transceiver terminal 2, and upload the self-management information to the upper-layer management device...

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Abstract

The invention discloses a DC project final circuit breaker protection function verification system and a verification method. The system comprises a control terminal, a transceiver terminal, a bus terminal and an upper management device. There are more external circuit breakers in the existing control panel cabinets, and the state of circuit breakers may change, which leads to a lot of software input parameters of circuit breakers. Before this, it is difficult to verify the correctness of the software program function in the control panel cabinet by manual way. Through this system, the traversal test under various conditions can be realized, and the correctness of the control panel cabinet software can be verified from the realization.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a protection function verification system and verification method for the final circuit breaker of a DC project. Background technique [0002] Finally, the circuit breaker protection can block the DC in time when the AC side of the DC system loses the current loop, so as to avoid overvoltage in the AC field and damage the equipment. The last circuit breaker includes the following two situations: 1. If the running converter loses connection with the AC field after a certain circuit breaker is disconnected, causing the DC current to lose its path, then this circuit breaker is the last circuit breaker of the converter 2 . When there is only one AC line left in the current loop, this is the last line. If the last line loses connection with the AC field after a certain circuit breaker is opened, causing the DC current to lose its path, then this circuit breaker is the last ci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/44G06F21/71G06F13/42
CPCG06F13/4282G06F21/44G06F21/71
Inventor 何竞松彭光强王海军卢志良国建宝杨光源
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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