A battery-free time-sharing measurement method for electric energy meter

Abstract

The invention relates to a battery-free time-sharing metering method for electric quantity of an electric energy meter, wherein electric energy increment of the electric energy measured via the electric energy meter and cumulative power-on time of the electric energy meter are obtained in a preset measuring time period; the remote effective timing sent to the electric energy meter by a remote device is used as the reference time of the electric energy meter; the current accumulated power-on time of the electric energy meter running to the remote effective timing is recorded; then, processing is performed to obtain the actual time corresponding to each electric energy increment; further, the preset time period data in the electric energy meter is combined, and the time-sharing rate electricenergy corresponding to the rate of the electric energy meter is obtained; the electric energy corresponding to the current rate is accumulated to the original time-sharing rate electric energy by searching for the rate at the current time; finally, the electric energy corresponding to the current actual time is obtained. The method realizes that when the electric energy meter has no battery forpower supply, the power is stably supplied by a power grid, the battery undervoltage problem does not occur, and the electric energy time-sharing rate measurement disorder is not caused by the batteryundervoltage.

Description

technical field [0001] The invention relates to the field of electricity metering of an electric energy meter, in particular to a battery-free time-sharing metering method for electric energy of an electric energy meter. Background technique [0002] At present, in order to play the role of electricity price adjustment, encourage electricity customers to adjust electricity load, shift peaks and fill valleys, use electricity resources rationally, fully tap the potential of power generation, supply, and electricity consumption equipment, and also have a macro-control effect on the overall power grid. It is required that the energy meter needs to have the time-of-use measurement function. [0003] In order to realize the time-of-use metering function, it is necessary to ensure that the time reference of the electric energy meter is accurate. The traditional electric energy meter uses a built-in battery to keep the clock of the electric energy meter under the condition of no ex...

AI Technical Summary

Problems solved by technology

However, due to the influence of a series of factors such as the operating environment of the electric energy meter, a large proportion of the battery undervoltage phenomenon exists in the electric energy meter in the field operation, which will lead to the disorder of the time-of-use electricity measurement of the electric energy meter, and it is difficult to accurately complete the time-of-use measurement of the electricity. Work

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