Three-phase electric energy sensor with three-way array structure and measuring system and method thereof

A technology of array structure and electric energy measurement, applied in the field of smart meter measurement, can solve the problems of high cost and large workload of flow sensor, and achieve the effect of reducing the influence of multicollinearity, improving the efficiency of calculation and the accuracy of calculation

Pending Publication Date: 2022-03-08
武汉国测数据技术有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The problem caused by this approach is that the workload of flow sensor error calibration is huge and the cost is too high

Method used

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  • Three-phase electric energy sensor with three-way array structure and measuring system and method thereof
  • Three-phase electric energy sensor with three-way array structure and measuring system and method thereof
  • Three-phase electric energy sensor with three-way array structure and measuring system and method thereof

Examples

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Effect test

Embodiment 1

[0065] A three-phase electric energy sensor with a three-way array structure, such as figure 1 As shown (a schematic diagram of a three-phase electric energy sensor with a three-way array structure under a three-meter method of electric energy measurement method), the three-phase electric energy sensor with a three-way array structure includes a three-phase electric energy shunt with 1 input and 2 outputs or 2 inputs and 1 output structure, the electric energy shunting structure constitutes a three-phase electric energy system conforming to the electric energy conservation relationship, wherein, one inlet and two outlets or two inlets and one outlet pipeline are respectively provided with electric energy sensing units, and on any pipeline The method of connecting the error reference standard device in series, establishes a mathematical model according to the power conservation relationship, and uses the power data collected by the power sensing unit and the error reference stan...

Embodiment 2

[0074] The present invention also provides an electric energy measurement system composed of three-phase electric energy sensors with a three-way array structure. In the electric energy system provided with a three-phase electric energy sensor with a three-way array structure as described in Embodiment 1, it includes: at least two stages and three A three-phase electric energy sensor with a three-way array structure, wherein each level of the three-phase electric energy sensor with a three-way array structure corresponds to each of the three-phase electric energy sensors, including an electric energy sensing master unit on the inflow side and two on the The electric energy sensing sub-meter unit on the outflow side; in a single-phase three-way array structure electric energy sensor, the electric energy of one electric energy sensing master meter unit and two electric energy sensing sub-meter units form a relative electric energy conservation relationship ;Such as figure 2 Sho...

Embodiment 3

[0092] The embodiment of the present invention also provides a method for measuring an electric energy measurement system composed of three-phase electric energy sensors with a three-way array structure. The electric energy system composed of three-phase electric energy sensors with a three-way array structure includes: at least two A three-phase electric energy sensor with a three-way array structure of 1 in and 2 out, wherein each level of 1 in and 2 out in a three-way array includes a power sensor master meter on the inflow side and two three-phase power sensors on the outflow side The sensor sub-meter unit, one power sensor master meter on the inflow side and two three-phase power sensor sub-meter units on the outflow side form a relative power conservation relationship;

[0093] Among them, for the adjacent two-level 1-in 2-out three-way array, the three-phase electric energy sensor sub-meter unit on the outflow side in the upper-level 1-in 2-out three-way array is the nex...

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Abstract

The invention discloses a three-phase electric energy sensor of a three-way array structure and a measuring system and method of the three-phase electric energy sensor. A mathematical model is established by using an electric energy conservation relation of an electric energy system, and electric energy data detected by the electric energy sensor of the three-way array structure and the error reference standard device are utilized. An electric energy measurement error device for calculating electric energy sensing units arranged on one inlet and two outlets or two inlet and one outlet pipelines of the electric energy sensor of the three-way array structure compensates electric energy data obtained by new measurement by using errors obtained by calculation, and continuously iteratively calculates measurement errors of the electric energy sensing units. And the error-free or equal-error electric energy sensor with the three-way array structure is obtained. The multi-collinearity influence of electric energy data calculation caused by similar electric energy using habits of users is weakened, and the calculation efficiency and the calculation precision are improved.

Description

technical field [0001] The invention belongs to the technical field of smart meter measurement, and more specifically relates to a three-phase electric energy sensor with a three-way array structure and its constituent measurement system and measurement method. Background technique [0002] At present, a large number of used meters, such as electricity meters, water meters, gas meters or other flow meters, cannot be dismantled back to the laboratory to detect flow errors because the usage in real life is too large. There is an urgent need to find technologies and methods for online detection of these flow sensor errors; [0003] For mathematical algorithms, when the flow measurement system is relatively large, there are many flow sensors included in the flow measurement system, and the similarity of user flow consumption habits will lead to multicollinearity problems in flow meter data. Calculation accuracy is affected. [0004] The traditional method is to install a flow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R22/06G01R35/04
CPCG01R22/06G01R22/061G01R35/04
Inventor 侯飞侯铁信金鹏汪毅钟晓清郑华刘春华段愿朱政
Owner 武汉国测数据技术有限公司
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