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Protection system and method based on information fault tolerance

A genetic algorithm and substation technology, applied in the field of power system automation, can solve problems such as not effectively utilizing the power system, achieve the effect of ensuring safe implementation and improving fault tolerance

Inactive Publication Date: 2016-12-07
STATE GRID CORP OF CHINA +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the wide-area relay protection algorithm using a single type of information is too simple to use regional information, and does not effectively use the overall advantage that all electrical quantities in the power system are interconnected

Method used

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  • Protection system and method based on information fault tolerance
  • Protection system and method based on information fault tolerance
  • Protection system and method based on information fault tolerance

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0041] The embodiment of the present invention proposes a figure 1 Shown is a schematic diagram of the area protection control system of the present invention. It can be seen from the figure that the system includes an in-situ protection device, an intelligent interface, a merging unit, a station area protection device, an area protection device, an in-situ protection device, an merging unit, an intelligent interface and a station The domain protection device is connected through Ethernet, and the station domain protection device is connected with the regional protection device through a regional communication network.

[0042] The station domain protection device is connected to the substation to receive the electrical quantity information of the nodes ...

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Abstract

The invention provides a protection system and method based on information fault tolerance. The method comprises the following steps: acquiring electric quantity information of a node in a transformer substation to perform the first initial judgment; fusing the electric quantity information of the transformer substation and the electric quantity information of an adjacent transformation substation, and then performing the fault evaluation using a genetic algorithm, thereby performing the second initial judgment; judging whether the results of the first initial judgment and the second initial judgment are consistent, determining that the transformer substation is in fault if judging that the results of the first initial judgment and the second initial judgment are consistent.

Description

technical field [0001] The invention belongs to the field of electric power system automation, and in particular relates to a protection system and method based on information fusion. Background technique [0002] The power system is undoubtedly one of the most important parts of modern life, and a stable power system is the guarantee for people to live and work. With the development of communication technology, the area protection control technology of power system has gradually become one of the research focuses of the existing power system. With the improvement of communication technology and network technology and the popularization of optical fiber in substations, the real-time performance and low bit error rate of telecontrol communication are guaranteed, but it is still unavoidable that some information will be lost after the transmission information passes the communication verification. After analysis, it was found that the causes of such information loss accidents...

Claims

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Application Information

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IPC IPC(8): H02H7/26G06Q50/06
CPCH02H7/261G06Q50/06
Inventor 李俊刚刘星胡源奇魏勇刘虎李鹤翟浩冲孔晓民胡宝
Owner STATE GRID CORP OF CHINA
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