Power grid running safety risk quantification method

A security risk and quantitative method technology, applied in the field of power grid risk quantification, can solve problems such as difficult to meet the assessment, strong subjectivity, and inaccurate risk assessment results

Inactive Publication Date: 2015-03-04
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In the existing technology, qualitative methods are mainly used for problem-based risk assessment of the power grid, which has problems such a...

Method used

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  • Power grid running safety risk quantification method
  • Power grid running safety risk quantification method
  • Power grid running safety risk quantification method

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Embodiment Construction

[0072] The present invention is described in detail below in conjunction with accompanying drawing:

[0073] Such as figure 1 As shown, the present invention provides a method for quantifying power grid operation safety risks, comprising the following steps:

[0074] S1, establish a risk quantification model;

[0075] The risk quantification model provides an assessment basis for the risk assessment link of the whole risk management process, and the risk quantification model requires a set of professional algorithms and data to provide technical support for the risk quantification platform. Among them, the risk quantification algorithm adopts the continuous multiplication model, and the data uses the power grid equipment fault database, the grid annual fault statistics table and the third-party fault statistics table as the basis for the risk quantification model to carry out risk quantification.

[0076] In the present invention, the risk quantification algorithm adopted by...

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Abstract

The invention provides a power grid running safety risk quantification method. The method comprises establishing a risk quantification model, wherein the power grid value risk is equal to consequence value*probability value; determining the category of influence factor items required to participate in risk quantification estimation to obtain the weighted value among all influence factor sub-items contained by each screened influence factor item; selecting the corresponding influence factor sub-items from each influence factor items participating in risk quantification estimation, multiplying the selected influence factor sub-items to obtain a probability value, multiplying the probability value by a consequence value to obtain the power grid risk value during the occurring of the dangerous factors of the power grid, and obtaining the power grid grade according to the power grid risk value. By the aid of the method, high risk quantification scientificity and accuracy is provided, and risks can be quantified reasonably to be used as the object measurement basis for guiding actual power generation.

Description

technical field [0001] The invention belongs to the technical field of power grid risk quantification, and in particular relates to a power grid operation safety risk quantification method. Background technique [0002] In recent years, my country's power grid has developed rapidly, and all walks of life in the society have higher and higher requirements for the safe and stable operation of the power grid. Once the power grid fails, the economic losses and social impact caused by it will become greater and greater. Therefore, an effective risk assessment of the power grid is carried out, that is, a risk assessment based on hazard factors that exists within a period of time caused by equipment outages, platform tests, equipment abnormalities, etc.; then, on the basis of the risk assessment, each unit formulates Power grid risk control measures within the scope of jurisdiction, including technical measures and organizational measures, etc., reduce the severity of the consequen...

Claims

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Application Information

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IPC IPC(8): G06Q50/06
CPCG06Q10/0635G06Q50/06
Inventor 郭殿奎王凤萍王春龙刘伟刘海龙李文静
Owner STATE GRID CORP OF CHINA
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