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Power grid operation safety risk evaluation method

A technology for power grid operation and risk assessment, applied in complex mathematical operations, instruments, data processing applications, etc., can solve problems such as low evaluation level, poor objectivity and accuracy

Active Publication Date: 2017-10-20
STATE GRID XINJIANG ELECTRIC POWER CO ECONOMIC TECH RES INST +3
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Problems solved by technology

[0007] In view of the above analysis, the present invention aims to provide a risk assessment method for power grid operation safety to solve the problem of poor objectivity and accuracy of existing assessment methods, resulting in low assessment levels

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Embodiment Construction

[0032] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principle of the present invention.

[0033] A specific embodiment of the present invention discloses a risk assessment method for grid operation safety, such as figure 1 , including the following steps:

[0034] Step S1. Determine the evaluation index set U={U 1 ,U 2 ,...,U m} and comment set V={V 1 ,V 2 ,...,V n}, where m represents the number of evaluation indicators in the evaluation index set, and n represents the number of comments in the comment set. The evaluation index set is a two-level index system.

[0035] Establish an evaluation index set according to the pre-determined grid safety operation risk indicators (such as figure 2 ), specifically including three first-level...

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Abstract

The invention relates to a power grid operation safety risk evaluation method. The method comprises the following steps: an evaluation index set and a comment set are determined; a fuzzy relation matrix for secondary indexes in the evaluation index set is built; weights of primary indexes and secondary indexes are determined respectively, and weight vectors of the primary indexes and the secondary indexes are obtained respectively; the product of the weight vectors of the secondary indexes and the secondary index fuzzy relation matrix is calculated, and a comprehensive evaluation fuzzy vector of the primary indexes is obtained; and the product of the comprehensive evaluation fuzzy vector of the primary indexes and the weight vectors of the primary indexes is calculated, a power grid operation risk comprehensive evaluation vector is obtained, and the grade of a comment corresponding to the maximum value in the power grid operation risk comprehensive evaluation vector is regarded as a final evaluation result. The safety risk evaluation accuracy and the objectivity can be improved, and safe and stable operation of the power grid are ensured.

Description

technical field [0001] The invention relates to the technical field of risk assessment of power grids, in particular to a risk assessment method for power grid operation safety. Background technique [0002] In recent years, with the development of social production, the electricity demand of the whole society is in a steady growth trend. The power grid shoulders the important task of providing and transmitting electric energy for the whole society. With the development of networking and the expansion of power supply areas, the safe and stable operation of the power grid has also been greatly challenged. In addition, with the advancement of the reform of the power system, the deregulation of the power sales side provides users with more choices for using electric energy, and also makes power users put forward higher requirements for power quality and reliability of power supply. [0003] However, the operation security of the power grid is affected by many aspects such as n...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F17/16
CPCG06F17/16G06Q10/0635G06Q50/06
Inventor 妙旭娟朱明明刘金朋赵学花马宁荣高升李昌陵辛璐
Owner STATE GRID XINJIANG ELECTRIC POWER CO ECONOMIC TECH RES INST
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