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Method for assessing comprehensive risks of power transmission line in multiple meteorological disasters

A transmission line, comprehensive risk technology, applied in the direction of instruments, data processing applications, forecasting, etc., to achieve the effect of reasonable calculation methods

Inactive Publication Date: 2018-09-14
HUIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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  • Description
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Problems solved by technology

[0003] In order to overcome at least one of the above-mentioned defects in the prior art, the present invention provides a comprehensive risk assessment method for transmission lines under multiple meteorological disasters, and establishes a comprehensive risk assessment model for overhead transmission lines under multiple meteorological disasters. Provides a reference method and means for solving the problem of comprehensive risk assessment of the line when it occurs simultaneously

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  • Method for assessing comprehensive risks of power transmission line in multiple meteorological disasters
  • Method for assessing comprehensive risks of power transmission line in multiple meteorological disasters
  • Method for assessing comprehensive risks of power transmission line in multiple meteorological disasters

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Embodiment Construction

[0038] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

[0039] 1. Calculation of line comprehensive trip rate

[0040] The embodiment of the present invention is further described in conjunction with 10 overhead transmission lines with a voltage level of 220kV of Huizhou Power Supply Bureau of China Southern Power Grid Corporation. The statistics of the trip index probability of the 10 lines are shown in Table 1.

[0041] Table 1 Probabil...

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Abstract

The invention relates to the technical field of risk assessment of electric power systems and specifically relates to method for assessing comprehensive risks of a power transmission line in multiplemeteorological disasters. The method for assessing comprehensive risks of the power transmission line in multiple meteorological disasters comprises the following steps: comprehensive trip-out risk probability of a power transmission line is obtained; the comprehensive trip-out risk probability is used for determining risk probability of reclosing success, risk probability of reclosing failure andsuccessful forced power transmission and risk probability of reclosing failure and unsuccessful forced power transmission; probability of comprehensive fault risks of the power transmission line is determined; according to a comprehensive coefficient of influence factors, probability of comprehensive risks of the power transmission line is determined; according to a risk and harm value, the comprehensive risks of the power transmission line are determined. Via the method, the comprehensive risks of the line are assessed, and pertinent prediction and theory support can be provided for a commander of an electric power system.

Description

technical field [0001] The invention relates to the technical field of power system risk assessment, and more specifically, relates to a method for comprehensive risk assessment of transmission lines under multiple meteorological disasters. Background technique [0002] In the case of multiple meteorological disasters on the transmission line, different transmission lines have different risk levels under different meteorological disasters. Establish a risk assessment model for transmission lines under multiple meteorological disasters to provide targeted predictions and theoretical support for the power grid command system. is of great significance. Contents of the invention [0003] In order to overcome at least one of the above-mentioned defects in the prior art, the present invention provides a comprehensive risk assessment method for transmission lines under multiple meteorological disasters, and establishes a comprehensive risk assessment model for overhead transmissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/0635G06Q50/06
Inventor 朱凌陈涛威郭佳才徐大勇李鸿文赖育庭王晓光陈峰陈伟鑫
Owner HUIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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