Method for evaluating power supply reliability of power distribution network

A distribution network, reliability technology, applied in data processing applications, instruments, calculations, etc., to achieve accurate and comprehensive reliability assessment

Inactive Publication Date: 2015-05-13
STATE GRID CORP OF CHINA +4
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although foreign countries have relatively mature theories and rich experience, it is difficult to directly learn from the development

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
  • Method for evaluating power supply reliability of power distribution network
  • Method for evaluating power supply reliability of power distribution network
  • Method for evaluating power supply reliability of power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0025] A distribution network power supply reliability evaluation method, characterized in that it comprises the following steps:

[0026] Step 1. Read in the original data and save the original network structure; the original data includes: equipment forced outage rate, unplanned outage time, planned outage rate, and planned maintenance time.

[0027] Step 2. For each power grid equipment, enumerate and store corresponding fault events;

[0028] Step 3: Search the transformer to obtain the blackout area caused by the fault, perform fault state simulation, and distinguish recoverable and non-recoverable power supply areas;

[0029] Step 4. For each fault event in the recoverable power supply area, obtain the load transfer path through load transfer path analysis; if no recoverable path is found in the recoverable power supply area, leave the faulty recoverab...

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 a method for evaluating the power supply reliability of a power distribution network and belongs to the field of power distribution network power supply. The method includes: reading the original data firstly and enumerating corresponding fault events for grid equipment; searching a transformer to obtain power supply interrupted regions caused by faults, conducting fault state simulation and distinguishing the recoverable power supply region from the unrecoverable power supply region; for each fault event of the recoverable power supply region, acquiring the load transferring path through the load transferring path analysis; conducting load flow calculation, if the load flow is overload and the load transferring is not successful, acquiring a new load transferring path; and calculating the reliability index of each load point and the whole power distribution network according to the recoverable power supply region and the unrecoverable power supply region after faults. The method can more accurately and comprehensively evaluate the power supply reliability of the power distribution network so that the level which the urban power grid can reach in the aspect of the power supply ability, the present problems and the development prospect can be deeply realized.

Description

technical field [0001] The invention belongs to the field of distribution network power supply, in particular to a distribution network power supply reliability evaluation method. Background technique [0002] The urban power grid is an important infrastructure of the city and an important material guarantee for the development of the national economy and social progress. [0003] In recent years, the urban power grid has undergone large-scale construction and transformation, and the power supply capacity, reliability and quality of power supply have been significantly improved. With the rapid development of China's national economy, the growth of power load has accelerated significantly, and the development of urban power grids is facing new opportunities and challenges. The assessment of power supply capacity of power grids is an essential part of power grid planning. [0004] Domestic research on the evaluation system of power grid planning has just started, and there is...

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
CPCG06Q50/06
Inventor 李琥谈健归三荣韩俊史静王娜刘涌廖祖金袁秋实
Owner STATE GRID CORP OF CHINA
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