Intelligent integral multifunctional electric energy meter and method for controlling load by same

Abstract

The invention discloses an intelligent integral multifunctional electric energy meter, which comprises an electric energy meter body; an input interface and a load monitoring end are arranged on the electric energy meter body; the input interface and the load monitoring end are respectively limited on two different surfaces of the electric energy meter body; a grid null line and a live wire are accessed into the input interface; a plurality of user loads are accessed into the load monitoring end; and a plurality of transmission connection configurations, a metering module, a circuit breaking module, a transmission port, a display and a control panel are arranged on the electric energy meter body between the input interface and the load monitoring end. According to the electric energy meter provided by the invention, the functions of metering and charging can be realized, and the control of user load can also be realized synchronously; as a plurality of output ports are arranged, the data transmission way is flexible, the user or maintenance staff can conveniently obtain the data information and solve the problems in time. In addition, the invention further discloses a method for controlling a load by the intelligent integral multifunctional electric energy meter.

Description

technical field [0001] The present invention relates to the field of electric energy metering, and more specifically, the present invention relates to an integrated multifunctional smart electric energy meter, which is used for electric power consumption metering and load control for grid users. Background technique [0002] Generally speaking, an electric energy meter is an electrical measuring device connected between the grid power line and the load of the grid user. For example, a three-phase watt-hour meter is used to measure the electrical energy output by a grid power supply or consumed by a load in a three-phase AC circuit. Its working principle is the same as that of a single-phase electric energy meter, except that it adopts multiple sets of driving components and multiple aluminum disks fixed on the rotating shaft in order to realize the measurement of three-phase electric energy. It consists of three drive elements and three aluminum discs mounted on the same sh...

AI Technical Summary

Problems solved by technology

[0003] However, the current technology has made continuous efforts to solve the defects in the measurement accuracy and real-time performance of the smart energy meter, as well as the communication function, but there is no energy meter that can reasonably monitor and effectively control the user load, that is, the energy meter itself. Functionality is only continuously improved within the range of electrical measurement functions, which strictly limits the function expansion of the energy meter. If an electrical measuring instrument is required, that is, an effective connection between the energy meter and the load, other equipment is bound to be needed to realize the load. Monitoring, especially for the continuous enrichment of current user load types and the continuous complexity of the power grid, the improvement of electric energy meters cannot be timely and effective, and the functionality is therefore limited

[0004] On the other hand, grid users, especially civil grid users, still do not have effective devices and methods for direct current metering in their loads.

Because direct current is different from multi-phase alternating current, it does not generate electromagnetic alternating quantity, so it cannot be measured by the induction device of conventional electric energy meter, and it is impossible to realize monitoring

Especially for large direct currents, the existing technology often uses shunt methods for metering, but the effect is not ideal and there are potential safety hazards

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