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

Accurate power grid safety risk assessment method

A technology for power grid security and risk assessment, used in data processing applications, instruments, calculations, etc.

Inactive Publication Date: 2015-11-18
STATE GRID CORP OF CHINA +2
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the analysis of a series of large-scale power outages in recent years, it can be seen that the traditional safety assessment methods (including deterministic stability analysis and probabilistic assessment methods) have shortcomings.

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
  • Accurate power grid safety risk assessment method
  • Accurate power grid safety risk assessment method
  • Accurate power grid safety risk assessment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] By analyzing the data contained in OPEN3000, OMS and other systems, it reflects the safe operation of regional substations.

[0039] The safety risk indicators for evaluating substations are mainly: the equipment operation rate of the substation (switch arrangement, equipment outage); ) and subsequent insurance changes. Among them, the calculation of equipment operation rate is based on the equipment status data in EMS, the calculation of equipment over limit rate is based on the equipment over limit and remote signal over limit data in EMS, and the calculation of equipment defect rate and relay protection change is based on equipment defects and relay protection in OMS. Save the changed data.

[0040] The platform mainly conducts risk assessment on 220KV substations, 110KV substations, 35KV substations and important users. The power maintenance risk of important users is comprehensively analyzed according to the risk assessment scores of relevant substations. Among ...

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 discloses an accurate power grid safety risk assessment method, comprising: employing an analytic hierarchy process to perform hierarchy on risk factors; employing the analytic hierarchy process to calculate the weight of each risk factor to system influence; utilizing a D-S evidence theory to correct the weight definition of the analytic hierarchy process; utilizing the evidence theory to combine rules and fuse evidences; and performing hierarchy on the safety effect of each risk factor according to a fused basic reliability partition function to finally obtain a system safety effect level. The accurate power grid safety risk assessment method is accurate and effective, and facilitates assessment.

Description

[0001] This application is a divisional application with application number: 201510412517.6, application date: 2015.7.14, and title "Evaluation Method for Power Grid Security Risk". technical field [0002] The invention relates to a network security risk assessment method. Background technique [0003] In recent years, the continuous development of China's economy has injected new vitality into the development of the power industry. The demand for electricity continues to increase, the structure and scale of the power grid are increasing, and the complex characteristics of the power system are becoming increasingly obvious. This puts forward higher requirements and challenges for the security and stability control of modern power systems. Under the bright prospect of vigorously developing the smart grid, people are more confident in ensuring the safe and stable operation of the power system. However, people have to face the fact that the risk of large-scale blackout in the...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 张乐黄峰张晓沛王鹏於耘新岑新李烽范春阳
Owner STATE GRID CORP OF CHINA
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