Integrated flexible arc extinguishing method of single-phase grounding fault of power distribution network

A single-phase ground fault and distribution network technology, applied in the field of distribution network, can solve the problems of single function, inconvenient expansion of arc suppression capacity, and high cost

Active Publication Date: 2020-05-08
FUZHOU UNIV
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide an integrated flexible arc suppression method for single-phase ground faults in distribution net

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
  • Integrated flexible arc extinguishing method of single-phase grounding fault of power distribution network
  • Integrated flexible arc extinguishing method of single-phase grounding fault of power distribution network
  • Integrated flexible arc extinguishing method of single-phase grounding fault of power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0066] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0067] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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 an integrated flexible arc extinguishing method of a single-phase grounding fault of a power distribution network. Multiple functions of arc extinguishing of the single-phasegrounding fault of the power distribution network, active power and reactive power control of a load and the like are realized by using multi-level converter integration. Independent control of activepower, reactive power and zero-sequence power is achieved through current decoupling control under a rotating coordinate system. The control of the active power and the reactive power of the load isrealized by utilizing an instantaneous power theory, and the control of zero-sequence power is realized by a flexible arc extinguishing algorithm of the single-phase grounding fault. For problems thatan existing active arc extinguishing device is single in function; and cost performance is low due to high cost, in the invention, the same set of power electronic equipment has the multiple functions of active power control, reactive power control, single-phase grounding fault arc extinguishing and the like, utilization efficiency of the power electronic equipment is greatly improved, capacity expansion is easy, and dispersion localization of grounding fault arc extinguishing and reactive power compensation can be realized.

Description

technical field [0001] The invention relates to the field of distribution networks, in particular to an integrated flexible arc suppression method for single-phase grounding faults in a distribution network. Background technique [0002] With the development of urbanization, a large number of active loads and reactive loads are connected, and the distribution network continues to extend, making the structure of the distribution network increasingly complex. The probability of faults in the distribution network is greatly increased, and single-phase ground faults account for more than 70% of the total faults in the distribution network. Single-phase grounding faults can easily be transformed into arcing ground faults, resulting in overvoltage and short-circuit between phases. At this time, fast and reliable arc suppression can effectively avoid fault expansion and ensure the safety of personnel and equipment. As more and more power electronic equipment is connected to the d...

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): H02H9/08H02J3/00H02J3/18
CPCH02H9/08H02J3/00H02J3/1821Y02E40/30
Inventor 郭谋发郭彩虹郑泽胤杨耿杰高伟
Owner FUZHOU UNIV
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