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Method and system for associating information of protection time asynchronization fault of two ends of circuit

A fault information system and fault information technology, applied in the fault location and other directions, can solve the problems of difficulty in matching fault information at both ends of the fault line, the failure information system cannot achieve the same fault information matching, and time asynchrony, etc., to achieve fast and effective fault information. Matching function, high reliability, the effect of ensuring reliability

Active Publication Date: 2015-04-01
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0008] Based on the above analysis, it can be seen that when the relay protection fault information system processes the fault information sent by the sub-stations, due to the time asynchrony between the sub-stations, it is difficult to match the fault information at both ends of the fault line. When a fault occurs, the existing fault information system cannot achieve information matching for the same fault

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  • Method and system for associating information of protection time asynchronization fault of two ends of circuit
  • Method and system for associating information of protection time asynchronization fault of two ends of circuit

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0026] Such as figure 1 As shown, the present invention is based on the information association method of complex faults when the two ends of the transmission line are not synchronized, including the following steps:

[0027] Step S11: Obtain the protection start information sent by the relay protection fault information system, start timing from the first protection start information received, within a preset time (for example, it can be set to 5 minutes by default, or other times, specific can be set according to actual needs), if there is only one protection start information, it is judged as a single fault, and step S12 is performed; if there are multiple protection start information, it is judged as continuous fault, and step S16 is performed;

[0028] Step S12: When i...

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Abstract

The invention discloses a method and a system for associating information of protection time asynchronization fault of two ends of a circuit. The method comprises the following steps: firstly, judging whether fault information is a single fault or a fault which happens continuously for multiple times, classifying and settling the fault information according to different fault situations, performing time sequencing on the fault information and calculating the fault time, and finally matching according to double standards of the fault time sequence and the fault time. By adopting the method and the system, the accuracy of the fault information matching result can be ensured.

Description

technical field [0001] The invention relates to the technical field of relay protection of power systems, in particular to a fault information association method when the protection times at both ends of a line are not synchronized, and a fault information association system when the protection times at both ends of a line are not synchronized. Background technique [0002] The relay protection and fault information system serves as a platform for field device information collection, sorting and analysis, and is a professional technical support system for relay protection. The sub-station of the fault information system at the plant station collects the normal operation, abnormal alarm and fault information of intelligent electronic equipment such as relay protection and fault recorder, and sends them to the main station system at the dispatching end after preliminary processing, so as to realize the on-site two The monitoring of the running status of the sub-system devices ...

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Application Information

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IPC IPC(8): G01R31/08
Inventor 焦邵麟陈志光曾耿晖张智锐王峰李一泉段刚杨东王立鼎秦红霞徐延明许君德
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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