A Lean Line Loss Analysis and Control Method Based on Remote Calibration of Grid Line Operation Error

Abstract

The invention relates to an accurate line loss analysis and control method based on power grid line operation error remote calibration. The method comprises steps of: (1) determining detection zones,(2) installing two to three detachable single-phase electric energy meters in each detection zone as error etalons for error detection, and correcting the overall data offset of an error calculation result by using the known errors of the error etalons; (3) obtaining all electric energy data of the detection zones, and substituting the data into an electric energy power data error calculation model; (4) tracing to standard current and a voltage transformer and a standard electric energy meter to verify the accuracy of a calculation result; and (5) controlling the specific detection zones according to a line loss calculation result. The accurate line loss analysis and control method based on power grid line operation error remote calibration quickly achieve the error detection of all electric energy data of the whole power grid without power outage by using big data calculation and analysis of the electric energy data.

Description

Technical field [0001] The invention belongs to the field of electric energy measurement, in particular to a lean line loss analysis and management control method based on remote calibration of grid line operation errors. Background technique [0002] At present, the general structure of "watt-hour meter + transformer" determines that there is a "dead knot" in the electric energy metering device: the error of the electric energy meter is a scalar, and the error of the current-voltage transformer is the vector of the ratio difference and the angle difference. Because it is impossible to perform operations between vectors and scalars. The error of the electric energy metering device cannot be obtained by separately detecting the error of the electric energy meter and the mutual inductor. Moreover, the huge number of household electric energy meters, the inspection workload is too large, and the detection must be powered off together constitute a major problem that the error of the...

AI Technical Summary

Problems solved by technology

Moreover, the number of household electric energy meters is huge, the inspection workload is too large, and the detection must be powered off, which constitutes a major problem that the error of the electric energy metering device cannot be detected, and the detection of line loss and variable loss has become a technical problem that cannot be measured.

[0003] After searching, no published patent documents of similar technologies were found

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