Supercharge Your Innovation With Domain-Expert AI Agents!

Storage method and retrieval method of electric power quality data

A power quality and retrieval method technology is applied in the field of storage and retrieval of power quality data to achieve the effects of improving storage efficiency, retrieval efficiency, and access efficiency.

Pending Publication Date: 2018-06-01
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of domestic power grid monitoring and the advancement of the national strategy "Internet +", the power quality terminal monitoring system has been further developed. In recent years, with the continuous development of power quality business, only statistical analysis data and temporary fault records Wave data is difficult to meet business needs, holographic storage of original power quality data has gradually become a trend, power quality data gradually presents the characteristics of big data, and the storage and retrieval of massive data is a difficult task for the current power business analysis integration system

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
  • Storage method and retrieval method of electric power quality data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0055] The specific implementation of the present invention includes but not limited to database, file mode, HBASE and other forms.

[0056] An example based on HBASE is given below:

[0057] 1. Table design

[0058]The HBASE-based power quality data storage structure includes at least two tables, the UID mapping table and the measurement data table. The UID mapping table stores the mapping of row, column key and encoding. The measurement data table stores specific measurement data, and its row key is a string of fixed order and width, which is coded according to measurement index, timestamp prefix, timestamp mask, granularity code, monitoring point code, Harmonic orders are organized sequentially. The column family is timestamp offset. Column qualifiers include at least value types. Column qualifiers can also be added according to other analysis requirements. Value types include at least maximum value, minimum value, average value, and 95 probability max etc.

[0059] 2. ...

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 storage method and a retrieval method of electric power quality data. The storage method divides electric power quality data into rows and lines and store divided data in a block data form into a grid-type logical structure chart. The retrieval method comprises the following steps: retrieving data in a storage model according to a selected retrieval mode; and matching dataone by one according to row labels and line labels of the retrieval mode in order to determine a data block where data is located. The retrieval method is applied to the storage model and comprises time points, sections and sequence retrieval modes. With the technical scheme provided by the invention, storage efficiency, retrieval efficiency of electric power quality data and extraction efficiency of data are increased.

Description

technical field [0001] The invention relates to the field of power system analysis, in particular to a method for storing and retrieving power quality data. Background technique [0002] The power quality data obtained by the power quality monitoring system (PQMS) is time-stamped and multi-measurement cycle data. The power quality monitoring system has been widely used, and most state grid power companies and users have installed power quality monitoring devices according to their own needs. With the development of domestic power grid monitoring and the advancement of the national strategy "Internet +", the power quality terminal monitoring system has been further developed. In recent years, with the continuous development of power quality business, only statistical analysis data and temporary fault records Wave data is difficult to meet business needs, holographic storage of original power quality data is gradually becoming a trend, power quality data gradually presents th...

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): G06F17/30
CPCG06F16/14G06F16/24Y02D10/00
Inventor 冯丹丹王同勋周胜军
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com