On-line monitoring method for power quality of coal mine power supply system

A technology of power quality and power supply system, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., to achieve the effects of high monitoring accuracy, intuitive display, and synchronous testing

Inactive Publication Date: 2013-12-11
江苏广识电气有限公司
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a method for on-line monitoring of power quality in a coal mine power supply system. The method realizes the monitoring and data sharing of the power quality of the whole mine b...

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
  • On-line monitoring method for power quality of coal mine power supply system
  • On-line monitoring method for power quality of coal mine power supply system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing.

[0013] Such as figure 1 Shown, the present invention comprises the following steps:

[0014] (1) Based on the coal mine smart substation, that is, the coal mine ground and underground substations have been built with smart substations. The ground and underground smart substations include two layers, the process layer and the interval layer, and the control center is built on the ground as the station control of each smart substation. The power quality monitoring substation of the ground smart substation and the underground integrated protection measurement and control device (including the power quality monitoring and analysis function) are responsible for monitoring the power quality of each smart substation. management, such as figure 2 shown;

[0015] (2) The process layer merging unit of the ground intelligent substation samples voltage and current information, and ...

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 achieving on-line monitoring of the ground and underground integrated power quality based on an intelligent coal mine substation system. The method solves the problem that the underground power quality can not be monitored in the past, and achieves all-parameter measurement analysis of the power quality of a ground and underground integrated coal mine total-system power grid. Moreover, the synchronous test of the power quality of switches of the whole grid is achieved, and the method has the advantages of being simple and easy to implement, high in monitoring accuracy and visual in display, and truly achieving overall on-line monitoring of the power quality of the coal mine power supply system.

Description

technical field [0001] The invention relates to an online power quality monitoring method, in particular to a method for realizing online monitoring of coal mine surface and underground integrated power quality based on a coal mine intelligent substation system, and belongs to the technical field of power quality improvement in coal mine power supply systems. Background technique [0002] Coal mines have higher and higher requirements for power quality while the demand for power is increasing. The quality of power quality directly affects the safety of coal mine production. The access of a large number of nonlinear loads and the nonlinear characteristics of the coal mine grid itself make the pollution of the coal mine grid more and more serious. Among the many indicators included in the power quality, voltage deviation, voltage fluctuation, and harmonics are the key points for the power quality control of the coal mine grid. focus. The monitoring results of power quality ar...

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): G01R31/00
Inventor 袁朋生孟献仪王浩先
Owner 江苏广识电气有限公司
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