Electric energy metering and monitoring system of intelligent gateway

Abstract

The invention relates to an electric energy metering and monitoring system of an intelligent gateway, which mainly comprises a three-phase standard ammeter and a built-in computer thereof, a remote switching control device, contactless intelligent open-loop current pincers, a detected meter switching control unit, an error verification unit and the like, wherein the remote switching control device comprises an MPU (Micro Processor Unit) chip control circuit and a relay switching circuit which are arranged in a switching box; 8 paths of input ends for connecting a detected meter are arranged on the switching box; the current signals of the detected meter, which are taken out by the current pincers, and the voltage signals and pulse signals of the detected meter, which are taken out by a voltage and pulse sampling circuit of the detected meter, are accessed to the standard ammeter through the switching box; and the error verification of the detected meter is realized through a software platform. The electric energy metering and monitoring system provided by the invention has the characteristics of simple integral design, real-time error verification and high safety, and is convenient to install.

Description

technical field [0001] The invention relates to an on-site verification instrument for a gateway electric energy meter for a power grid, in particular to a real-time verification device for a gateway electric energy meter for a smart grid. Background technique [0002] For the smart grid, a more sensitive and accurate front-end measurement link is the basis of all intelligence. More, wider, and more convenient front-end sampling and measurement links will greatly improve the analysis and management functions of the smart grid, allowing more links to be incorporated into the network system of the smart grid. With the gradual deepening of the reform of the electric power system, market players tend to be diversified, and higher requirements are put forward for the accuracy, reliability, fairness and impartiality of measurement. In terms of specific technologies, digital power grids, power consumption information collection systems, and smart grid construction have put forward...

AI Technical Summary

Problems solved by technology

The data acquisition platform of the gateway electric energy meter collects the electric energy data in the electric energy meter as a settlement tool, rarely analyzes and monitors the current and voltage data, and lacks the ability to analyze and manage the gateway line

[0006] 3. On-site verification costs are high

The on-site verification cycle of different gateway electric energy meters is different. The important gateways need to be verified once every quarter, and the distribution of the gateways is relatively wide. Consumption of manpower and material resources

There are also requirements for the on-site load conditions during the verification. Sometimes the on-site load conditions do not meet the requirements of the on-site verification, which will also cause incorrect verification results and the inability to carry out the verification, which increases the difficulty of the on-site verification work.

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