An Iterative Calculation Method of Electric Energy Meter Error Based on Measurement Uncertainty

A technology of measurement uncertainty and iterative calculation, applied in the field of iterative calculation of electric energy meter error based on measurement uncertainty, can solve the problems of undiscovered patent documents, achieve significant economic and social benefits, and avoid measurement accuracy Disputes and the effect of saving procurement funds

Active Publication Date: 2022-04-22
TIANJIN ELECTRIC POWER TECH DEV CO LTD
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[0004] After searching, no published patent documents of similar technologies were found

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  • An Iterative Calculation Method of Electric Energy Meter Error Based on Measurement Uncertainty
  • An Iterative Calculation Method of Electric Energy Meter Error Based on Measurement Uncertainty
  • An Iterative Calculation Method of Electric Energy Meter Error Based on Measurement Uncertainty

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[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0046] An iterative calculation method of electric energy meter error based on measurement uncertainty. The iterative method is a process in which the old value of the variable is used to recurse the new value continuously. The iterative algorithm is a basic method to solve the problem. The basic idea is to derive a new value for a variable from its original value.

[0047] Because this method measures the average error of the electric energy meter within a period of time, the measured result is only the estimated value of the measured value, and the uncertain factors in the measurement process will lead to the uncertainty of the measurement. The measurement results corrected for the known system eff...

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Abstract

The invention relates to an iterative calculation method for electric energy meter error based on measurement uncertainty. The specific calculation steps are: (1) setting the initial value of α to 0; (2) substituting the collected data into the operation error to remotely verify the calculation error of the flow conservation model; (3) Check the rationality of the error, if it is unreasonable, correct the empirical coefficient α, and calculate the error again; if it is reasonable, enter the next step; (4) the number of out-of-tolerance tables, if it does not meet the interval, correct the empirical coefficient α, and calculate the error again; If so, proceed to the next step; (5) Calculate the error by using slip iterative calculation until the error value of each electric energy meter is obtained; (6) evaluate the uncertainty of the error value; (7) obtain the final result of the error calculation. This method combines the big data prediction technology of the error change trend of the electric energy meter, and can complete the user's non-perception replacement operation before the out-of-tolerance problem occurs, eliminates hidden dangers, and avoids unnecessary disputes over measurement accuracy.

Description

technical field [0001] The invention belongs to the field of electric energy metering, in particular to an iterative calculation method for electric energy meter errors based on measurement uncertainty. Background technique [0002] The accuracy of electric energy metering devices in operation has always been a hot issue that residents and State Grid Corporation are most concerned about. At present, the State Grid Corporation uses statistical analysis methods or adding online detection equipment to realize the supervision and evaluation of the operating errors of smart energy meters. Although the statistical analysis method has changed the single-phase electric energy meter used by residents in the past from regular rotation to random inspection, it is still the control of the overall batch; adding online monitoring equipment will definitely increase the purchase and maintenance costs of the enterprise. This method maintains Costly and limited. [0003] The iterative metho...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q10/00G06Q50/06G01R35/04
CPCG06Q10/0639G06Q10/20G06Q50/06G01R35/04Y02P90/82
Inventor 李野贺欣付保军于树明于蓬勃于香英张应田李刚曹国瑞于学均董得龙郭景涛张一萌滕永兴杨光孙淑娴朱逸群何泽昊
Owner TIANJIN ELECTRIC POWER TECH DEV CO LTD
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