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A method and device for evaluating the state of an electric energy meter

A state evaluation and evaluation device technology, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve problems such as poor state evaluation accuracy of electric energy meters

Active Publication Date: 2022-02-15
GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method and device for evaluating the state of an electric energy meter, which is used to solve the technical problem that the existing on-line monitoring technology has poor accuracy in evaluating the state of the electric energy meter

Method used

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  • A method and device for evaluating the state of an electric energy meter
  • A method and device for evaluating the state of an electric energy meter
  • A method and device for evaluating the state of an electric energy meter

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Embodiment 1

[0046] see figure 1 , Embodiment 1 of a method for evaluating the state of an electric energy meter provided in the embodiment of the present application, including:

[0047] Step 101, obtain the historical operating condition parameters of several electric energy meters in the station area, convert the historical operating condition parameters of each electric energy meter into operating condition parameter vectors, obtain the electric energy meter operating condition parameter matrix X of the station area, and convert each electric energy meter After comparing the historical working condition parameters of each electric energy meter with the preset threshold, the electric energy meters are classified, and the electric energy meter category matrix Y of the station area is obtained.

[0048] It should be noted that the station area refers to the power supply range or area of ​​(one) transformer. It can be understood that the concentrator collects the historical working condit...

Embodiment 2

[0072] see figure 2 , Embodiment 2 of a method for evaluating the state of an electric energy meter provided in the embodiment of the present application includes:

[0073] Step 201, obtain the historical operating condition parameters of several electric energy meters in the station area, convert the historical operating condition parameters of each electric energy meter into operating condition parameter vectors respectively, and obtain the electric energy meter operating condition parameter matrix X of the electric energy meter in the station area; Whether all the category parameters in the historical working condition parameters of an electric energy meter are within the preset threshold, if the electric energy meter is assigned a value of "1", otherwise the electric energy meter is assigned a value of "0", and the classification is carried out according to the assignment of each electric energy meter , to get the electric energy meter category matrix Y in the station are...

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Abstract

This application discloses a method and device for evaluating the state of an electric energy meter. The method includes: taking the historical working condition parameters of the electric energy meter as independent variables, and regarding the state of the electric energy meter as a dependent variable, thereby abstracting it into a multivariate regression statistical analysis problem , but because the historical operating condition parameters are multi-dimensional information parameters including multiple types, there may be some correlation between the multi-dimensional information, that is, there may be some serious multiple correlations between the independent variables. In order to solve this problem, this application introduces the partial least squares method, first establishes the matrix according to the historical working condition parameters, then divides the matrix and establishes the evaluation model through the partial least squares method, and evaluates the state of the electric energy meter according to the evaluation model, Using the partial least squares method can be used to analyze the characteristics of the pattern recognition problem under the condition of small samples and multivariate conditions, which can solve the system noise and multiple linear problems well, so as to solve the problem of poor accuracy of the status evaluation of the electric energy meter by the existing online monitoring technology technical problem.

Description

technical field [0001] The present application relates to the technical field of power electronics, in particular to a method and device for evaluating the state of an electric energy meter. Background technique [0002] Electric energy metering is the legal basis for electric energy trade and electricity fee settlement in the electric power industry. Electric energy meters for electric energy transaction settlement are generally installed in substations, power plants and user stations. The reliability and accuracy of electric energy measurement not only bears the responsibility of enhancing customer satisfaction, but also plays an important role in increasing enterprise management benefits. The operation management and maintenance of electric energy meters are the top priority of daily electric energy measurement technology management. [0003] Considering that there may be high temperature, high humidity, high salinity in the operating environment of the electric energy m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04G06F17/18G06K9/62
CPCG01R35/04G06F17/18G06F18/24
Inventor 霍梓航林国营李向锋曾争张思建王鹏张晓平
Owner GUANGDONG ELECTRIC POWER SCI RES INST ENERGY TECH CO LTD