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Reliability Prediction Method of Smart Energy Meter Based on Failure Rate Level

A smart energy meter and failure rate technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problems of easy operation errors, large number of components, cumbersome estimation process, etc., and achieve simplified estimation process and high accuracy , Improve the effect of engineering practicability

Active Publication Date: 2021-06-15
BOZHON PRECISION IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are a large number of components with high reliability of resistors and capacitors in smart energy meters
Existing estimation methods are cumbersome and prone to operational errors

Method used

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  • Reliability Prediction Method of Smart Energy Meter Based on Failure Rate Level
  • Reliability Prediction Method of Smart Energy Meter Based on Failure Rate Level
  • Reliability Prediction Method of Smart Energy Meter Based on Failure Rate Level

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Embodiment

[0030] Such as figure 1 As shown, the reliability prediction method of the intelligent electric energy meter based on the failure rate level of the present invention can calculate the reliability index of each unit and the entire meter by predicting the reliability of the intelligent electric energy meter. It includes failure rate λ, reliability R, mean life MTTF and reliability life. In this paper, IEC series manuals are selected, combined with the idea of ​​reliability prediction method of field data, to find a method suitable for reliability prediction of engineering electric energy meters. Before predicting the reliability, the information that needs to be known includes: the circuit principle of the smart energy meter, the working environment and the relevant information of the components. The specific prediction method includes the following steps:

[0031] 1. Establish a reliability prediction model for smart energy meters;

[0032] The reliability prediction model o...

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Abstract

The invention discloses a method for predicting the reliability of an intelligent electric energy meter based on the failure rate level, which includes: establishing a reliability prediction model of the intelligent electric energy meter according to the logical structure and the physical structure, classifying the components constituting the intelligent electric energy meter, Components and components with a high failure rate in field use are classified as key components, components with high reliability and large quantities are classified as special components, and other components are classified as conventional components; conventional components are obtained by using the estimated manual The working failure rate of components; use field data to calculate the working failure rate of key components based on the established smart energy meter reliability prediction model; use the component counting method for special components to obtain the working failure rate of special components; according to the components and functions The failure rate of the functional unit and the failure rate of the energy meter are obtained from the logical relationship between the unit and the energy meter. The accuracy of the reliability prediction result of this method is high, the prediction process is simplified, and the engineering practicability is improved.

Description

technical field [0001] The invention relates to a method for predicting the reliability of an intelligent electric energy meter, in particular to a method for predicting the reliability of an intelligent electric energy meter based on failure rate levels. Background technique [0002] The reliability prediction of electric energy meters is usually based on a standard or manual. This kind of "swallowing jujube" type prediction does not consider the difference between the field use of electric energy meters and the prediction in the manual. The relevant information of electric energy meter components is not well understood. The impact on the reliability of table components. In the smart energy meter, custom-made components specially commissioned by the energy meter company are used, and these components often have a high failure rate. For the reliability prediction of self-made components and new devices, there is no reference data for such components in the prediction manual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04G01R31/00
Inventor 李翰斌孟健张德伟吴大卫杨宝平
Owner BOZHON PRECISION IND TECH CO LTD
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