Method for analyzing reliability of electronic watt-hour meter

An analysis method and energy meter technology, applied in the electric power field, can solve the problems of improper selection of reliability prediction manuals, reduced reliability of predicted results, heavy workload, etc. Effect

Inactive Publication Date: 2014-04-23
SHENZHEN POWER SUPPLY BUREAU
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many reliability analysis systems for electronic products, but due to the particularity of electronic energy meters, the reliability prediction work has the characteristics of heavy workload and large errors, especially the improper selection of reliability prediction manuals. Tends to reduce the credibility of the predicted results

Method used

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  • Method for analyzing reliability of electronic watt-hour meter
  • Method for analyzing reliability of electronic watt-hour meter
  • Method for analyzing reliability of electronic watt-hour meter

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Embodiment Construction

[0025] The technical scheme adopted in the present invention is: adopting a reliability analysis method of an electronic energy meter, considering the number of components and parts constituting the equipment, the reliability of the components and the mutual functional relationship between the components, etc., to analyze the reliability of the electronic energy meter Analyze and calculate the reliability R(t) of the whole machine, the failure rate λ and other parameters. Specifically, first collect a large amount of on-site data, determine a certain number of electric energy meters as test samples, and then make statistics on the information such as the commissioning time, operating status, failure time, and life history data of the sample electric energy meters, and fit the reliability-life distribution , to study the correction method of the reliability model of the electronic energy meter, and obtain a more accurate reliability model.

[0026] The invention provides a meth...

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Abstract

The invention provides a method for analyzing reliability of an electronic watt-hour meter. The method includes the steps of firstly, dividing the electronic watt-hour meter into a plurality of functional modules according to functions, and setting the significance weights of the functional modules to be the same; secondly, calculating steady-state failure rates of all elements in all the functional modules through a working failure rate forecasting model; thirdly, calculating failure rates of all the functional modules in the electronic watt-hour meter through a functional module failure rate calculating model according to the steady-state failure rates of the elements; fourthly, taking the functional modules in the electronic watt-hour meter as serial, and calculating the overall failure rate of the electronic watt-hour meter through an overall failure rate calculating model according to the failure rates of the functional modules; fifthly, calculating the average service life and the reliability degree of the electronic watt-hour meter according to the overall failure rate. By means of the method for analyzing reliability of the electronic watt-hour meter, credibility of forecasting results on the service life and the reliability degree of the electronic watt-hour meter can be remarkably improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a method for analyzing the reliability of an electronic electric energy meter. Background technique [0002] The demand for electric energy meters in the power system is huge. The installation coverage of electronic electric energy meters is wide, the number is huge, the degree of automation is high, and the function is complex but the structure is complex. At the same time, electric energy meters involve the interests of different economic entities. The reliability requirements are relatively high. If the reliability analysis and reliability design of the product can be carried out in time during the design stage of the electronic energy meter, the inherent reliability of the product can be improved, thereby reducing the loss caused by failure. At present, there are many reliability analysis systems for electronic products, but due to the particularity of electronic ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 王少锋钱政张永翔于浩王波范小飞
Owner SHENZHEN POWER SUPPLY BUREAU
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