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Regional power grid reference risk online acquisition method and system

A technology for regional power grids and acquisition methods, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems of high risk error rate in manual statistics, heavy workload of dispatchers, etc., and achieve the effect of reliable and accurate power grid risk assessment

Inactive Publication Date: 2020-08-28
GUIZHOU POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to today's technology, the workload of the dispatcher is heavy, and the error rate of manual statistical risk is high. In order to assess the risk of the power grid more reliably and accurately, the research and application of the online acquisition method of the baseline risk of the regional power grid has become extremely valuable

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  • Regional power grid reference risk online acquisition method and system
  • Regional power grid reference risk online acquisition method and system
  • Regional power grid reference risk online acquisition method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 1 and Figure 12 , the first embodiment of the online acquisition method for regional power grid benchmark risk provided by the present invention: an online acquisition method for regional power grid benchmark risk, comprising:

[0038] Obtain power flow results before equipment failure;

[0039] Obtain power flow results after equipment failure;

[0040] Call the healing program to judge whether the power flow acquisition result is converged;

[0041] Compare the power flow results before the equipment failure and the power flow results after the equipment failure, and obtain the results converted into accident event levels, so as to realize the online acquisition of the grid benchmark risk.

[0042]Among them, the power flow results before the equipment failure are obtained are as follows:

[0043] Based on any optional fault condition, including tripping of any section of busbar, tripping of any transformer, tripping of any AC line, tripping of double-...

Embodiment 2

[0079] see Figure 3-11 , as in image 3 A 110kV substation's "single substation is completely lost, all voltage level busbars are completely lost" condition is taken as an example to describe the present invention in detail, which is the second embodiment of the online acquisition method for the regional power grid benchmark risk provided by the present invention:

[0080] 1) if Figure 4 to Figure 7 As shown, before the equipment fails, the power flow is obtained from the DAT network frame file, and the total load of the network frame, line power flow, equipment overload information, and whether the obtained results are converged are obtained;

[0081] 2) if Figure 8 to Figure 9 As shown in , click on the faulty device set to obtain the power flow again;

[0082] 3) if Figure 10 As shown in , it is judged whether the DAT grid file is converged, and if it is not converged, the healing program is invoked until the DAT grid file converges, and the previous step is repeate...

Embodiment 3

[0088] see figure 2 , the first embodiment of the regional power grid benchmark risk online acquisition system provided by the present invention: an online regional power grid benchmark risk acquisition system, including:

[0089] An acquisition module 100, configured to acquire power flow results before equipment failure and power flow results after equipment failure;

[0090] Calling module 200, used to call the healing program to judge;

[0091] The transformation and extraction module 300 is used to obtain and convert into a series of accident event level results according to the accident event level criteria, and extract the maximum value of the accident event level results as the final accident event level of this risk, so as to realize the online grid benchmark risk Obtain.

[0092] Further, the calling module 200 includes:

[0093] A mobilization unit is used to realize the invocation of the healing program;

[0094] The judging unit is used to judge whether the D...

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Abstract

The invention discloses a regional power grid reference risk online obtaining method. The method comprises the steps of obtaining a power flow result before an equipment fault; obtaining a power flowresult after equipment failure; calling a healing program to judge whether the DAT file is converged or not; comparing the power flow result before the equipment fault with the power flow result afterthe equipment fault, obtaining an accident event level result, and achieving the online obtaining of a power grid reference risk; meanwhile, the invention discloses a regional power grid reference risk on-line acquisition system, and the system comprises an acquisition module which is used for acquiring a power flow result before an equipment fault and a power flow result after the equipment fault; a calling module which is used for calling a healing program for judgment; and a conversion and extraction module which is used for obtaining and converting the accident event grade into a series of accident event grade results according to the accident event grade criterion, and extracting the maximum value of the accident event grade results as the final accident event grade of the risk, so that the online obtaining of the power grid reference risk is realized, and the purpose of risk early warning is achieved.

Description

technical field [0001] The invention relates to the technical field of power grid risk acquisition, in particular to a method and system for online acquisition of regional power grid benchmark risks. Background technique [0002] With the development of the times, people's demand for power resources is increasing, which leads to increasing pressure on the power transmission of the power grid. In order to ensure the sustainable transmission of power, it has become an indispensable and important link to do a good job in early warning of power grid risks. [0003] According to today's technology, the workload of the dispatcher is heavy, and the error rate of manual statistical risk is high. In order to assess the risk of the power grid more reliably and accurately, the research and application of the online acquisition method of the baseline risk of the regional power grid has become extremely valuable. Contents of the invention [0004] The purpose of this section is to outl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06
Inventor 林成肖辅盛罗艳何立新王庭刚李慧敏周智海卞苏波陈子敬高浩张诗琪粟景邹欣侯鹏远
Owner GUIZHOU POWER GRID CO LTD
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