Digital electric energy meter quantity value tracing system based on analog quantity detection and digital electric energy meter quantity value tracing method based analog quantity detection

Abstract

The invention relates to a complete digital electric energy meter quantity value tracing system based on analog quantity detection and a digital electric energy meter quantity value tracing method based the analog quantity detection. The digital electric energy meter quantity value tracing system based on the analog quantity detection includes an analog electric energy device, an analog standard electric energy meter, an analog standard power meter, a voltage and current conversion message module, a standard power calculation and standard electric energy generation module, and three error calculation modules; the voltage and current conversion message module samples voltage and current parameters of the analog electric energy device, and transmits an IEC61850 message under sequential logic control; and the standard power calculation and standard electric energy generation module samples the content of the IEC61850 message, computes the power of the IEC61850 message real time, and generates electric energy, and performs display and pulse output. With the digital electric energy meter quantity value tracing system based on the analog quantity detection of the invention adopted, quantity values of digital electric energy meters can be traced back to analog quantity measurement standards through an improved method, and the technical problem of difficult tracing of the digital quantity of the digital electric energy meters can be solved, and an improved solution is provided for the tracing of the quantity values of the digital electric energy meters.

Description

technical field [0001] The invention relates to a complete and analog quantity detection-based digital electric energy meter value traceability system and method, which are used for the value traceability of digital electric energy meters in smart substations or the electrical parameter calibration of other intelligent secondary equipment, and belong to smart grid instruments equipment testing field. Background technique [0002] With the maturity of technologies such as intelligent switches, electronic current and voltage transformers, online status detection of primary operating equipment, and training and simulation of substation operation, the application of the IEC61850 protocol and the development and application of high-speed computer networks in real-time systems, all information in substations Acquisition, transmission and processing of fully digital smart substations will become an inevitable trend in the construction of substation automation in power systems. [...

AI Technical Summary

Problems solved by technology

[0009] The present invention aims at the technical defects in the traceability detection of the above-mentioned digital electric energy meter value, carries out technical innovation, and proposes a complete and

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