Periodic waveform sampling data compression system and method for electric power system

A waveform synchronization and data sampling technology, which is applied in electrical digital data processing, special data processing applications, electrical components, etc., can solve the problems that the data is not recorded and the sampling rate cannot be too high

Active Publication Date: 2009-07-15
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem in the threshold trigger recording method existing in the prior art that the data when the power failure occurs is not recorded because the trigger setting is wrong or the storage space is not enough, and t

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
  • Periodic waveform sampling data compression system and method for electric power system
  • Periodic waveform sampling data compression system and method for electric power system
  • Periodic waveform sampling data compression system and method for electric power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention is described in detail below in conjunction with accompanying drawing:

[0020] see figure 1 A schematic structural diagram of the power system periodic waveform synchronous sampling data compression system in the power system periodic waveform synchronous sampling data compression system and method of the present invention. Such as figure 1 As shown, the power system periodic waveform synchronous sampling data compression system includes: a synchronous sampling unit, a comparator, a synchronous frequency multiplication unit, a time scale generator, a data processing unit and an encoding unit, wherein the comparator is respectively connected to the The timing generator is connected to the synchronous frequency multiplication unit, and the synchronous frequency multiplication unit is connected to the timing generator and the synchronous sampling unit respectively, and the synchronous sampling unit and the timing generator are connected to the synch...

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 present invention relates to a compression system and method for electrical power system periodic waveform synchronous sampling data, wherein the system comprises a synchronous sampling unit, a comparator, a synchronous frequency doubling unit, a time-mark generator, a data-processing unit and a encode unit; the method comprises the following steps: 1. convert periodic signal to square wave signal through the comparator; 2. generate synchronous sampling pulse through the synchronous frequency doubling unit and the synchronous sampling unit performs synchronous digifax conversion under synchronization of synchronous sampling pulse and inputs convertion result into the data-processing unit, meanwhile, the time-mark generator records start moment of each frequency current and input time mark into the data-processing unit; 3. preliminary treatment to information through the data-processing unit; 4. encode to form a compressed file through the encode unit. The present invention performs preliminary treatment to sampled data before encode, enhances compression ratio, realizes high sampling frequency, overcomes influence to non-integer-period sampling, and improves data consistency.

Description

【Technical field】 [0001] The invention relates to a data compression technology in a power system, in particular to a system and method for synchronously sampling data of periodic waveforms in a power system. 【Background technique】 [0002] The power system wave recording device is divided into two recording methods: threshold trigger recording and continuous recording. Among them, the threshold-triggered recording method only records the pre-fault and post-fault data when the calculated data exceeds the set threshold, and cannot comprehensively record the effective information of the power system. The reason is that the main purpose of the preset trigger value is to predict the possible There is a risk that the trigger value is set to accurately capture the event that occurs. In many cases, the data when the power failure occurs is not recorded because the trigger is set incorrectly or the storage space is insufficient. As for the continuous recording method, the sampling ...

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): H02H7/26G06F17/00
Inventor 张东来王超张斌
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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