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Method and system for establishing power grid measurement database

A measurement data and database technology, which is applied in the field of establishing a power grid measurement database, can solve the problems of inability to accurately map the power grid operation status, low quality of power grid measurement data, and poor synchronization, so as to meet the differentiated data requirements of application scenarios and improve Data retrieval efficiency and the effect of improving utilization

Pending Publication Date: 2020-03-27
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to problems such as low quality and poor synchronization of grid measurement data, it is impossible to accurately map the actual operating status of the grid
At the same time, there are many types of power grid measurement data and the heterogeneity of the acquisition system is large, resulting in low matching and poor correlation of cross-system data, which cannot support multi-scale information fusion analysis and online applications of various applications

Method used

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  • Method and system for establishing power grid measurement database
  • Method and system for establishing power grid measurement database

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] Such as figure 1 As shown, the grid measurement data dimension of the present invention includes:

[0046] 1) Physical dimension: corresponding to a specific piece of equipment, including: busbar, AC line terminal, generator, transformer, capacitor, reactance, converter, DC line, switch, knife switch.

[0047] 2) Attribute dimension: used to distinguish the measurement data types, including: active power, reactive power, three-phase voltage amplitude, three-phase voltage phase angle, three-phase current amplitude, three-phase current phase angle, remote signal status , Quality code.

[0048] 3) Spatial dimension: corresponds to the area where the equipment is located.

[0049] 4) Application dimension: used to clarify data sources, including: data acquisition and supervisory control system (SCADA), wide-area phasor measurement system (WAMS), and fau...

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Abstract

The invention provides a method and system for establishing a power grid measurement database, and the method comprises the steps: determining a multi-source measurement data index based on at least one power grid measurement data dimension, wherein the at least one power grid measurement data dimension comprises a time dimension, a space dimension, an application dimension, an attribute dimensionand a physical dimension; performing data recombination on power grid measurement data in a power grid measurement database based on the multi-source measurement data index; retrieving an input service demand in the power grid measurement database to obtain corresponding service demand data, wherein the service requirement comprises a field value or a field range corresponding to a specified dimension field in the multi-source measurement data index. By establishing the power grid measurement database, high-speed retrieval of data from different dimensions of time, space, application and equipment is realized, differentiated data requirements of different application scenes are met, and multi-source heterogeneous data can be accurately and quickly stored and accessed.

Description

technical field [0001] The invention relates to the field of data access, in particular to a method and system for establishing a grid measurement database. Background technique [0002] With the rapid construction and development of smart grids, the power industry has entered the era of big data. In the context of smart grid construction, the control center has put forward higher requirements for the intelligence of power grid monitoring. Objectively, it is necessary to further improve the underlying data model of dispatch data, establish a big data model for power grid operation suitable for big data analysis, and support monitoring based on Big data analysis of power grid operation data, thereby improving the ability to analyze and make decisions on power grid regulation and operation. [0003] The operating state of complex AC and DC power grids is in a process of rapid and dynamic changes, objectively putting forward higher requirements for online analysis, and it is u...

Claims

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Application Information

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IPC IPC(8): G06F16/21G06F16/22G06Q50/06
CPCG06F16/21G06F16/2228G06Q50/06
Inventor 潘玲玲李峰刘俊刘芮彤韩月耿建徐鹏王勇毛文博石飞王礼文王刚
Owner CHINA ELECTRIC POWER RES INST