Power transmission line fault location system based on PMU (phasor measurement unit) and method

A transmission line, fault location technology, applied in fault location, system integration technology, information technology support system, etc.

Active Publication Date: 2018-12-28
NORTHEASTERN UNIV
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional algorithm based on fault information collection, analysis and location, the impedance parameter of the entire transmission line is taken as a known quantity, and the error of the line parameter often affects the accuracy of fault point locati

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 transmission line fault location system based on PMU (phasor measurement unit) and method
  • Power transmission line fault location system based on PMU (phasor measurement unit) and method
  • Power transmission line fault location system based on PMU (phasor measurement unit) and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0087] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0088] This embodiment takes the EEE 39 power generation and transmission system as an example, and uses the transmission line fault location system and method based on the PMU device of the present invention to perform fault location on the power transmission system.

[0089] A transmission line fault location system based on a PMU device, such as figure 1 As shown, including data monitoring layer and fault location layer;

[0090] The data monitoring layer, on the premise of dividing the transmission system according to the zero injection point and ensuring that the entire transmission system meets the principle of fault observability, classifies and stores the measuremen...

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 provides a power transmission line fault location system based on a PMU (phasor measurement unit) and a method, and relates to the technical field of power system fault location. The system comprises a data monitoring layer for classifying and storing measurement information acquired by the PMU and performing fault monitoring, and a fault location layer for analyzing a type of a fault and locating a fault point. The fault location method of the system comprises the steps of allowing the data monitoring layer to judge the fault of a power transmission line and upload relevant nodedata of the faulty power transmission line to the fault location layer, allowing the fault location layer to process the relevant node data of the faulty line to accomplish location of the fault point, calculating an equivalent node where a PMU node is arranged to obtain a position of the fault point, and performing iterative calculation to reduce a calculation error. The power transmission linefault location system based on the PMU and the method solve the problem in synchronism of the measurement information and achieve the quick and effective location and calculation of the fault of the power transmission system.

Description

technical field [0001] The invention relates to the technical field of power system fault location, in particular to a transmission line fault location system and method based on a PMU device. Background technique [0002] As the power system becomes more and more complex, its stability is becoming more and more important. Once the transmission line fails, it will cause the entire system to oscillate, and serious failures may even lead to the collapse of the entire regional or even larger power system. In traditional protection, the action area of ​​quick-break protection often cannot cover the entire transmission line that needs to be protected, and in backup protection at all levels, there are problems such as complicated setting process of protection and delay in action. Therefore, the lines in the transmission system appear In the event of a fault, it is very important to be able to collect, store and analyze the fault information and accurately locate the fault point un...

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): G01R31/08
CPCG01R31/085Y02E40/70Y02E60/00Y04S10/22Y04S10/52
Inventor 肖军陈东野杨珺张化光刘鑫蕊孙秋野黄博南杨东升王智良汪刚
Owner NORTHEASTERN 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