Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Danger assessment method of power grid blackout based on generalized extreme value theory and analytic hierarchy process

An analytic hierarchy process and generalized extreme value technology, applied in the field of risk assessment of power grid blackout accidents, can solve the problems of inability to compare horizontally and lack of classification

Active Publication Date: 2018-05-29
广东电网有限责任公司惠州供电局
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot effectively conduct horizontal comparisons of similar accidents in different regions, and lacks a clear classification of the severity of accident consequences

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Danger assessment method of power grid blackout based on generalized extreme value theory and analytic hierarchy process
  • Danger assessment method of power grid blackout based on generalized extreme value theory and analytic hierarchy process
  • Danger assessment method of power grid blackout based on generalized extreme value theory and analytic hierarchy process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] 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.

[0049] Such as figure 1 As shown, a risk assessment method for power grid blackout accidents based on generalized extreme value theory and analytic hierarchy process includes the following steps:

[0050] S1: Extract sample data of load loss;

[0051] S2: Select an appropriate extreme value distribution model;

[0052] S3: Estimate the parameters of the generalized extreme value di...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a danger assessment method of power grid blackout based on generalized extreme value theory and analytic hierarchy process, which relates to the technical field of electric power system risk assessment. The method comprises the steps of S1 extracting the sample data of load loss; S2 selecting an appropriate extreme value distribution model; S3 conducting parameter estimationof the generalized extreme value distribution model by means of genetic binary particle swarm optimization based on effective population; S4 analyzing the accident probability of load loss; S5 establishing evaluation index and calculating weight vector by means of analytic hierarchy process; S6 calculating the danger index of load loss. The method is advantageous in that the same type of accidents which happen in different areas can undergo parallel comparison; a clear accident result seriousness grade evaluation index can be established.

Description

technical field [0001] The invention relates to the technical field of power system risk assessment, and more specifically, relates to a method for assessing the risk of power grid blackout accidents based on generalized extremum theory and analytic hierarchy process. Background technique [0002] Extreme value theory is a statistical analysis theory that studies accidents that will have a great impact once they occur. At present, extreme value theory has been gradually applied to the analysis of power systems. It includes the following aspects: using different extreme value distribution methods to calculate the icing return period of the regional power grid; based on the extreme value model, analyzing the failure probability of transmission lines in different periods. Once the power grid load loss accident occurs, it will not only have a significant impact on the power supply company and the society, but also a large-scale blackout accident obeys the power law distribution...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06G06N3/12
CPCG06N3/126G06Q10/04G06Q10/0639G06Q50/06
Inventor 陈涛威朱凌张素明赖育庭徐大勇陈峰李鸿文张琴彭东明陈伟鑫
Owner 广东电网有限责任公司惠州供电局
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com