Dynamic data compression and decompression method of communication process of wide-area measurement system

A technology of wide-area measurement system and communication process, which is applied in the field of real-time dynamic monitoring system of electric power system, can solve problems such as low transmission efficiency, multiple storage spaces, and high pressure on communication bandwidth, so as to improve data transmission rate, reduce data transmission volume, The effect of reducing the overall data volume

Active Publication Date: 2018-11-16
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large number of nodes in the entire network, the transmission rate (such as 100 frames per second) and the relatively slow change of most real-time data in the distribution network, there is a large amount of redundant data in the transmission process, and the transmission efficiency is low. Therefore, it is a technology worth studying to compress and transmit dynamic data and realize fast and lossless decompression.

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
  • Dynamic data compression and decompression method of communication process of wide-area measurement system
  • Dynamic data compression and decompression method of communication process of wide-area measurement system
  • Dynamic data compression and decompression method of communication process of wide-area measurement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0046] The structure of the wide-area measurement system is as follows figure 1 As shown, the distribution network PDC is connected to the master station system, and the distribution network PDC includes lines 1, 2, 3, ..., line 1 is connected to PMU device 11, PMU device 12, ..., PMU device 16 in sequence, and line 2 is connected to PMU device 21 , PMU device 22 , . . . , PMU device 26 , and so on, generally, the number of PMUs connected to a local PDC is limited, not too many, far less than 256.

[0047] The specific steps of a method for dynamic data compression and decompression in the communication process of...

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 dynamic data compression and decompression method of a communication process of a wide-area measurement system. According to the method, by researching a real-time dynamic data transmission protocol, a phasor measurement unit end selects complete data format transmission at an integral-second time and selects compressed data format transmission at a non-integral-second time, the phasor measurement unit end voltage compression process comprises DC_IDCODE compression, century second SOC compression, phasor data compression, frequency offset compression, frequency changerate compression, analog compression and digital compression, the phasor measurement unit end transmits a data frame to a data concentrator end, the data concentrator end identifies the format of thedata frame by detecting the format of the data frame transmitted by the phasor measurement unit end, and a compressed data frame is decompressed by reading a configuration frame and the data frame ofa previous moment and thus is restored to a data frame conforming to the transmission protocol.

Description

technical field [0001] The invention relates to the field of real-time dynamic monitoring systems of electric power systems, and more specifically relates to a method for compressing and decompressing dynamic data in the communication process of a wide-area measurement system. Background technique [0002] With climate change, a large number of new energy sources are connected to the grid, and the grid is facing more and more new challenges. The security, stable operation and real-time monitoring of the grid are becoming more and more important. At the same time, as my country's power grid develops toward intelligence, more and more intelligent equipment has begun to be put into the actual operation of the power grid, such as the phasor measurement unit (PMU). The phasor measurement unit is a device for the measurement and output of synchronized phasors and dynamic recording. Its core includes the synchronization phasor measurement based on the standard clock signal, the abi...

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): H04L1/00
CPCH04L1/0002H04L1/0007H04L1/0079H04L1/0083
Inventor 谢伟祝鑫张勇方陈时志雄朱敏陶维青
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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