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Method for improving time accuracy of electric energy information acquisition system

A technology of electric energy information collection and system time, which is applied in electronic timers, time division multiplexing systems, electrical components, etc., can solve the problem of low time synchronization accuracy and achieve the effect of improving time accuracy

Inactive Publication Date: 2011-02-02
HUIZHOU ZHONGCHENG ELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are no relevant research reports on the problem of low time synchronization accuracy of each level of the system in the collection of electric energy information.

Method used

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  • Method for improving time accuracy of electric energy information acquisition system
  • Method for improving time accuracy of electric energy information acquisition system
  • Method for improving time accuracy of electric energy information acquisition system

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with specific examples, but the specific examples do not limit the present invention in any way.

[0041] from figure 1 It can be seen that a method for improving the time accuracy of the electric energy information collection system provided by the present invention, its realization process is that at first the background server of the electric energy information collection system passes through the astronomical timing module (in the global positioning system timing module or the Beidou satellite navigation system timing module) One or two) to obtain the standard astronomical time, and then issue time correction information to the concentrator through GPRS, UDP, etc., to correct the time of the concentrator. After the time of the concentrator is corrected, the time correction information is released to terminal equipment such as electric energy meters and collection terminals through power line carrie...

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Abstract

The invention discloses a method for improving time accuracy of an electric energy information acquisition system. In the method, the time delay in four links, namely an astronomical time service module, a background server, a concentrator and metering terminal equipment, is calculated, predicted and compensated so as to improve the time accuracy of the electric energy information acquisition system. By calculating and predicting the time delay issued by time correction in the background server, the concentrator the terminal equipment and other links in the whole network of the electric energy information acquisition system and compensating the time delay, unified and accurate time marks are provided for each level of the electric energy information acquisition system, the data of the whole electric energy information acquisition system has an accurate time stamp, the time accuracy of the electric energy information acquisition system is improved, and the accurate time reference is provided for operation and scheduling, control, statistic analysis of line loss and other functions of a power system.

Description

technical field [0001] The invention relates to the technical field of power system power information collection, in particular to a method for improving the time accuracy of a power system information collection system. Background technique [0002] The electric power industry is a basic industry related to the national economy and people's livelihood, and an important guarantee for economic and social development. Smart grid is the recent construction goal of State Grid and China Southern Power Grid, and safe, reliable, and high-precision time synchronization is a basic requirement for the operation of contemporary grid and smart grid, because the grid is a huge system engineering, from power generation, transmission, All aspects of power distribution and power consumption require an accurate time base to ensure that the equipment in power plants and substations operates synchronously. [0003] For example, as an operating unit, the power supply department will regularly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04G7/00H04J3/06
Inventor 陈治明黄宏章黄宏威
Owner HUIZHOU ZHONGCHENG ELECTRONICS TECH
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