Electric energy metering verification method, device and system

Abstract

An embodiment of the invention discloses an electric energy metering simulation method, a device and a system; the embodiment of the invention performs transformation and process in a dSPACE (data space) system embedded with an MATLAB (matrix laboratory) platform, and compiles a measurement algorithm according to the power theory to form a measurement algorithm model library; the measurement accuracy of electric energy meters with different principles and algorithms can be simulated and analyzed; the limitations caused by the influences of standard meters with different principles to verification results in prior art are overcome; and the voltage and current parameters of the collected actual load and / or virtual load use the parameters of the dSPACE system for calculating and processing, and use the algorithm of the MATALAB platform for calling a software extended function; the collection and process of the actual load parameters and the algorithm optimization of non-sine reactive measurement are realized; and the measurement accuracy of the electric energy meter under actual application environments is improved.

Description

technical field [0001] The invention relates to the technical field of electric energy metering, and more specifically, to an electric energy metering simulation method, device and system. Background technique [0002] At present, the measurement of electric energy is carried out by measuring the electric energy consumed by the load through the electric energy meter, and the measurement accuracy of the electric energy meter needs to be verified by a standard electric energy metering device. [0003] The standard electric energy metering device is composed of a power source, a standard electric energy meter, an error collector and an analysis software. The test method is a comparison method, that is, the output power of the virtual power source, the accumulated electric energy collected by the standard electric energy meter and the measured electric energy meter Values ​​are compared, and the further analysis of electric energy measurement is carried out after the measurement...

AI Technical Summary

Problems solved by technology

[0004] However, there are at least the following problems in the way of using this kind of electric energy metering device to verify the electric energy meter: due to the different measurement principles and algorithms of the standard electric energy metering device, and the different analysis results of the test, the versatility of the electric energy meter verification is low, and the above metering method It is difficult to measure non-sinusoidal reactive energy. In addition, since the actual application of the energy meter measures the actual load, the virtual power verification method cannot guarantee the measurement accuracy of the energy meter in the actual application environment.

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