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Real-time comparison test method for online energy error of electric energy meter in smart substation

A smart substation, electric energy error technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of large errors and uncertainties, achieve the effect of convenient monitoring, improve the level of online monitoring and fault diagnosis

Active Publication Date: 2019-03-19
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
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Problems solved by technology

The electric energy data of the original electric energy meter can only be calculated by manual meter reading, and the electric energy error is calculated in units of days
Manual participation in obtaining electric energy values ​​brings large errors and uncertainties

Method used

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  • Real-time comparison test method for online energy error of electric energy meter in smart substation

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0023] like figure 1 As shown, the online energy error real-time comparison test system of the smart substation electric energy meter of the present invention includes a synchronous clock and an AD module connected thereto, an RS485 acquisition module 1, an RS485 acquisition module 2, a pulse acquisition module 1, and a pulse acquisition module 2.

[0024] Connect the standard electric energy meter and the measured electric energy meter to the same interval at the same time, the standard electric energy meter collects the three-phase voltage and three-phase current data of this interval, the electric energy meter under test supports traditional meters and digital meters, and the traditional mete...

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Abstract

The invention provides an on-line electric energy error real-time comparison test system and method for an intelligent transformer station electric energy meter. The on-line electric energy error real-time comparison test system includes a synchronous clock, an AD module, an RS485 acquisition module 1, an RS485 acquisition module 2, a pulse acquisition module 1 and a pulse acquisition module 2, wherein the AD module, the RS485 acquisition module 1, the RS485 acquisition module 2, the pulse acquisition module 1 and the pulse acquisition module 2 are connected with the synchronous clock; and as a standard electric energy meter and a detected electric energy meter access the same interval at the same time, and by means of acquisition of the three-phase voltage current and the meter reading data and the electric energy pulse data of the standard electric energy meter and the detected electric energy meter, the real time error data can be obtained. For the on-line electric energy error real-time comparison test system for an intelligent transformer station electric energy meter, the two electric energy meters do not need synchronization, and various data sources can be compared in real time and redundancy comparison can be realized. The on-line electric energy error real-time comparison method for an intelligent transformer station electric energy meter can automatically realize acquisition and real time comparison of the electric energy meter data in the on-site environment of a transformer station, wherein the time interval range for comparison can be adjusted at will, and statistics of the electric energy meter data in the time interval can be automatically realized.

Description

technical field [0001] The invention relates to a real-time comparison test method for online electric energy errors of electric energy meters in intelligent substations, and belongs to the technical field of electric power system intelligent substations. Background technique [0002] As a metering device, the energy meter's accuracy, reliability, and stability affect the accuracy of the entire billing system. The electric energy data of the original electric energy meter can only be calculated by manual meter reading, and the electric energy error is calculated in units of days. Manual participation in obtaining electric energy values ​​brings large errors and uncertainties. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a real-time comparison test method for online power errors of electric energy meters in smart substations, which can realize automatic meter reading and real-time comparison of power errors, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 杨世海赵双双卢树峰许钧李志新陈刚徐敏锐吴桥陆子刚倪时龙戴太文李涛陈晶
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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