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Method and device for metering electric energy, and electric energy meter

A technology for measuring electric energy meters and measurement methods, which is applied in the directions of measuring devices, measuring electric variables, measuring time integration, etc., and can solve the problems of low stability of electric energy meters, difficult installation, and high cost of three-phase metering chips

Inactive Publication Date: 2020-05-01
WAHLAP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the internal space of the electric energy meter, the transformer with a large volume is not easy to install; in addition, the cost of the three-phase metering chip is high, and the stability of the electric energy meter is low

Method used

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  • Method and device for metering electric energy, and electric energy meter
  • Method and device for metering electric energy, and electric energy meter
  • Method and device for metering electric energy, and electric energy meter

Examples

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Embodiment 1

[0028] This embodiment provides a method for measuring electric energy, which is applied to an electric energy meter, and the electric energy meter has multiple independent metering chips built in; figure 1 As shown, the method includes the following steps:

[0029] Step S102, sampling the three-phase related parameters through a plurality of independent metering chips to obtain the values ​​of the related parameters;

[0030] The above-mentioned multiple independent metering chips can be three, respectively sampling the corresponding three-phase related parameters, wherein, the independent metering chips can also be called single-phase metering chips, for example, RN8209C, RN8209D and other types of chips; the above-mentioned three-phase related parameters It can be the power, voltage, current, phase and other parameters of the three phases of A, B, and C, and finally obtain the values ​​of the above-mentioned multiple parameters. Specifically, when the electric energy meter...

Embodiment 2

[0058] Corresponding to the above method embodiment, see Figure 5 Shown is a schematic structural diagram of an electric energy metering device, which is applied to an electric energy meter, and the electric energy meter has multiple independent metering chips built in, and the device includes:

[0059] The parameter sampling module 51 is used to sample the three-phase related parameters through a plurality of independent metering chips to obtain the values ​​of the related parameters;

[0060] The electric energy metering module 52 is used for measuring the electric energy value of the electric energy meter according to the value of the relevant parameter.

[0061] An embodiment of the present invention provides a metering device for electric energy. The device is applied to an electric energy meter. The electric energy meter has a plurality of independent metering chips built in. Through the plurality of independent metering chips, the three-phase related parameters are sam...

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Abstract

The invention provides a method and a device for metering electric energy, and an electric energy meter. The method is applied to the electric energy meter, wherein a plurality of independent meteringchips are built in the electric energy meter, and the method comprises the steps of: sampling three-phase related parameters through the plurality of independent metering chips to obtain values of the related parameters; and metering an electric energy value of the electric energy meter according to the values of the related parameters. According to the method of the invention, through adoption of the plurality of independent metering chips, the related parameters are sampled, thereby reducing cost and improving stability of operation of the electric energy meter.

Description

technical field [0001] The invention relates to the technical field of electric energy metering, in particular to an electric energy metering method, device and electric energy meter. Background technique [0002] In the related art, the three-phase electric energy meter can adopt a three-phase metering chip to sample low voltage or low current through the three-way transformer, and then read the voltage and current measured by the current electric energy meter through the MCU (Microcontroller Unit, micro control unit). Power, electricity and other parameters. Due to the limitation of the internal space of the electric energy meter, it is difficult to install the transformer with a large volume; in addition, the cost of the three-phase metering chip is high, and the stability of the electric energy meter is low. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide an electric energy metering method, device and electric ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R11/00G01R22/10
CPCG01R11/00G01R22/10
Inventor 郑海锋陈建锋张亮钱红斌牛延谋
Owner WAHLAP TECH CO LTD