Power system safety determination method

A power system and judgment method technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as network failures, achieve wide adaptability, intuitively measure system security, and good calculability

Inactive Publication Date: 2017-01-25
CHINA ELECTRIC POWER RES INST +3
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If these arcs fail, all directed paths from the st

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
  • Power system safety determination method
  • Power system safety determination method
  • Power system safety determination method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0078] use figure 2 The middle and simple system is taken as an example. There are 5 nodes in the system. For the sake of simplicity, it is assumed that there are only lines in the system. The calculated reliability results further illustrate the implementation steps of this method. It is assumed that the failure rate of all single-circuit lines is 0.1 times per year. The recovery time is 0.005 hours / time.

[0079] 1. Number each point, from 1 to 5, and number each line, from X 1 to x 6 . Let 1 and 2 be the power point, and 5 be the load point.

[0080] Make a Network Incidence Matrix

[0081] C = 0 x 1 0 x 2 x 3 x 1...

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 relates to a power system safety determination method, comprising: determining the type of each element included a power system and topological structure of the power system, and sorting reliability historical data; determining a minimum path set of the topological structure of the power system; determining a minimum cut set of the topological structure of the power system; determining, through the minimum cut set, a power system reliability index in connection with the reliability historical data; in connection with element reliability historical data, using calculated unavailability of elements with lowest reliability in the power system as a determination threshold, and comparing the power system reliability index with the determination threshold to determine whether power system safety is satisfactory or not; the technical scheme provided herein makes considerations for the influence of faults of various elements upon system safety, such as breakers, disconnectors, busbars, and circuitry, and the method is suitable for discovering weak links of a power system to improve safety and provide beneficial support for power grid planning decision.

Description

technical field [0001] The invention relates to a judging method in the field of power system simulation and calculation, and specifically designs a power system safety judging method. Background technique [0002] Power grid reliability analysis is the basis of risk assessment and can provide a basis for decision-making such as power system planning, maintenance, operation, and control. With the increasing scale and complexity of modern power systems, and the continuous improvement of users' requirements for power quality, especially the promulgation of the "Regulations on Emergency Response and Investigation and Handling of Power Safety Accidents" issued by the State Council of the People's Republic of China Order No. 599, the power system security The reliability puts forward higher requirements, and the reliability of the power system has attracted people's attention. [0003] The reliability evaluation method based on topology structure is a relatively common analysis ...

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): G06Q50/06
Inventor 张鑫宋云亭李媛媛吉平董晓晶周宗川吴威胡臻达林毅林章岁陈湘申旭辉唐晓骏郑超罗红梅李惠玲
Owner CHINA ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap