Multi-dimensional evaluation-based power transmission line risk evaluation system and evaluation method thereof

A risk assessment system and technology for transmission lines, applied in the directions of instruments, data processing applications, resources, etc., can solve the problems of inaccurate results of risk assessment of transmission lines, errors and missing data recorded without considering risk factors, etc., so as to improve the efficiency of power supply. , prevention and power outage accidents, the effect of reducing power outage accidents

Inactive Publication Date: 2017-03-22
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in the risk assessment of transmission lines, the risk assessment method of two-dimensional evaluation is mostly used, that is, the assessment method of simply multiplying the probability of risk occurrence and the after-event impact as a risk index. Although this method can evaluate the size of the risk, However, this method does not take into account the unpredictability of the description information of the risk factors, such as error and lack of recorded data, and the possibility that the fault of the transmission line unit will cause the fault of the next-level line. The possibility of a first-level line fault actually exists in actual operation
If these two phenomena are ignored, the results of transmission line risk assessment will not be accurate enough

Method used

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  • Multi-dimensional evaluation-based power transmission line risk evaluation system and evaluation method thereof
  • Multi-dimensional evaluation-based power transmission line risk evaluation system and evaluation method thereof
  • Multi-dimensional evaluation-based power transmission line risk evaluation system and evaluation method thereof

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Embodiment 1

[0112] Embodiment 1 (the embodiment of the evaluation system of the present invention):

[0113] Depend on figure 1 As can be seen from the shown embodiment 1, the transmission line risk assessment system based on multi-dimensional evaluation is characterized in that it consists of each unit monitoring subsystem (I) of the transmission line, each unit multi-dimensional evaluation subsystem (II), each unit risk index calculation and It consists of a sorting subsystem (III), a comprehensive risk assessment system for transmission lines (IV), and a computer (V).

[0114] The monitoring subsystem of each unit of the transmission line consists of a basic monitoring module (1), a tower monitoring module (2), a ground wire monitoring module (3), an insulator string monitoring module (4), a fitting monitoring module (5), a grounding It consists of a device monitoring module (6), ancillary facility monitoring module (7), and a channel environment monitoring module (8); each component ...

Embodiment 2

[0119] Embodiment 2 (the embodiment of evaluation method of the present invention,)

[0120] The transmission line under test is a certain level of tower transmission line of 220kV overhead transmission line.

[0121] Using the system described in Embodiment 1, it is sufficient to follow the operation of the technical solution 2 in the summary of the invention above.

[0122] Calculate the weight of the multidimensional evaluation criteria according to the AHP, and use the expert scoring system to score the mutual importance of the multidimensional evaluation criteria, as shown in the attached Figure 4 shown.

[0123] The weight of multidimensional evaluation criteria can be calculated by calling the standard AHP package: W=(0.10,0.36,0.18,0.36).

[0124] The expert system is called to monitor the data samples of each unit of the transmission line, and the multi-dimensional evaluation grades are rated from four dimensions, and then, through the statistics of the statistical...

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Abstract

The present invention relates to a multi-dimensional evaluation-based power transmission line risk evaluation system and an evaluation method thereof. The evaluation system comprises a monitoring subsystem for each unit of a power transmission line, a multi-dimensional evaluation subsystem for each unit of the power transmission line, a risk index calculating and sorting subsystem for each unit of the power transmission line, a power transmission line comprehensive risk evaluation system and a computer. According to the technical points of the evaluation method, a multi-dimensional evaluation method for each unit of the power transmission line is constructed in four aspects: namely the fault occurrence possibility of a unit event, the fault severity of the unit event on the line at the same level, the error code unpredictability of the unit monitoring information, and the fault possibility of the unit event on the line at the next level. Furthermore, the operation risk state of the power transmission line at each level can be comprehensively evaluated. Based on the system and the method, the risk state of each unit of the power transmission line can be timely found out and accurately judged. Moreover, the overall operation risk state of the power transmission line at each level can be comprehensively and overally reflected.

Description

technical field [0001] The invention relates to a transmission line risk assessment system and an assessment method based on multidimensional assessment. It is applicable to the risk assessment of each component unit of the transmission line and the overall risk assessment of the transmission line. Background technique [0002] The transmission line is an important part of the power system and the lifeblood of the power transmission system. Its main function is to transmit electrical energy. Compared with the system, it is a single facility, but its operating status will have a major impact on the operating reliability of the entire system. From a practical point of view, for the operation and maintenance personnel of transmission lines, they can more accurately assess the risks of transmission lines, obtain the operating status of transmission lines, arrange maintenance personnel reasonably, and take risk control measures for corresponding locations. Ensure safe and reli...

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 黄欢赵立进黄良曾华荣毛先胤杜昊龚庆武乔卉刘栋谭思
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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