Fault self-recovery system and method for multi-contact complex power distribution network

A distribution network failure and complex technology, applied in the field of intelligent distribution network, can solve the problems of shortening the fault self-healing time, and achieve the effect of shortening the fault self-healing time, reducing the impact, and reducing the transmission energy consumption load

Pending Publication Date: 2022-05-24
国网浙江省电力有限公司平湖市供电公司 +2
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem in the prior art that the energy storage equipment and new energy electric energy distributed in various parts of the power grid are not fully utilized to further improve the fault self-healing ability of the distribution network, and provides a multi-connection complex distribution network fault self-healing Healing system and method, the distribution network is divided into substations, distribution nodes, energy storage, and power terminals for mesh connection, and the energy storage is used to assist distribution network power supply recovery to improve the self-healing ability of distribution network faults , shorten the fault self-healing time

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
  • Fault self-recovery system and method for multi-contact complex power distribution network
  • Fault self-recovery system and method for multi-contact complex power distribution network
  • Fault self-recovery system and method for multi-contact complex power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Example one, as Figure 4 Shown is a schematic diagram of a distribution area connection of part of the distribution network of the present invention, wherein Z1 to Z3 respectively represent three distribution areas, A1 to A3 respectively represent three distribution nodes, and B(i, j) represent A power terminal, E1 represents the energy storage station. The lines within the same distribution area are represented by solid lines, and the connecting lines across areas are represented by dashed lines.

[0066] when Figure 4 When the power consumption terminal B(1,1) in the power distribution system fails, the power distribution node A1 is disconnected, and the power distribution area Z1 is isolated. At this time, the fault point is located. Due to the failure of the power terminal B(1,1), the sub-intelligent device W(1,1) at the power-consuming terminal detects the fault information, and the fault current flows, and sends the fault to other sub-intelligent devices and t...

Embodiment 2

[0068] Example two, as Figure 5 Shown is another schematic diagram of the connection of distribution areas of part of the distribution network of the present invention, wherein Z1 to Z5 respectively represent five distribution areas, A1 to A5 respectively represent five distribution nodes, and B(i, j) represent one Power terminals, E1 and E2 represent energy storage stations. The lines within the same distribution area are represented by solid lines, and the connecting lines across areas are represented by dashed lines. The energy storage station is directly connected to the power consumption terminal through which three or more lines pass.

[0069] when Figure 5 When the power distribution node A1 in the system fails, the power distribution node A1 is disconnected, and the power distribution area Z1 is isolated. At this time, the fault point is located. Due to the failure of the power distribution node A1, the total intelligent device W1 will detect the fault information...

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 fault self-healing system and method for a multi-contact complex power distribution network, and the system comprises at least two transformer substations, each transformer substation is connected with a plurality of power distribution nodes, and the power distribution nodes are connected with adjacent power distribution nodes. The power distribution nodes, the power utilization terminals powered by the power distribution nodes, the power distribution nodes and lines among the power utilization terminals form a power distribution area, and at least one line in the power distribution area is connected with one line in the adjacent power distribution area. The fault self-healing method comprises the steps of power distribution node disconnection, power distribution fault positioning, non-fault branch power supply recovery, fault isolation and fault branch power supply recovery. The power distribution network is divided into the transformer substation, the power distribution nodes, the energy storage library and the power utilization terminal for mesh connection, the energy storage library is used for assisting power supply recovery of the power distribution network to improve the fault self-healing capability of the power distribution network, and the fault self-healing time is shortened.

Description

technical field [0001] The invention relates to the technical field of intelligent distribution network, in particular to a fault self-healing system and method for a multi-contact complex distribution network. Background technique [0002] The power distribution network is located at the end of the power system and plays an important role in connecting the power system and consumers and distributing electrical energy. With economic development and social progress, users have put forward higher requirements for the safe operation and reliable power supply of the distribution network. Therefore, the intelligent distribution network developed with the existing technology has become a hot research direction at present. An important feature of the smart distribution network is that it can perform active self-healing control after a fault, and complete fault isolation and power supply recovery in non-fault areas. [0003] "A self-healing control method for distributed faults in...

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): H02H7/28H02J13/00H02J3/38
CPCH02H7/28H02J13/00004H02J13/00006H02J13/0004H02J3/38
Inventor 方景辉沈红峰陈超姚强龚利武张健潘白浪张炜徐克吴韬顾一星朱晓晨吴湘源陆翔沈美勤邓子龙
Owner 国网浙江省电力有限公司平湖市供电公司
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