A time correction method and system for ensuring the validity of the time period electric quantity of an electric energy meter

By determining the time calibration needs of electricity meters and using point-to-point or broadcast time calibration strategies to correct clock deviations, the problem of electricity loss during certain time periods has been solved, ensuring the accuracy of electricity metering and the fairness of electricity trading.

CN116300380BActive Publication Date: 2026-06-26CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD
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Patent Information

Application Number
CN202211304047.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-24
Publication Date
2026-06-26
Estimated Expiration
2042-10-24

AI Technical Summary

Technical Problem

Existing electricity meter calibration methods cannot effectively guarantee the accuracy and completeness of electricity consumption during specific time periods. Especially in the electricity spot market, where the granularity requirements for electricity consumption during specific time periods are becoming increasingly stringent, it is impossible to avoid the loss or duplication of electricity consumption during specific time periods.

Method used

By determining whether the electricity meter needs time calibration, a time calibration strategy is determined, and the electricity meter is calibrated based on a point-to-point or broadcast time calibration strategy. Clock deviation is corrected using a preset time interval for electricity consumption, ensuring the validity of electricity consumption during the time period.

Benefits of technology

It ensures the validity and uniqueness of electricity consumption during the time period of electricity meter calibration, guarantees the legality of electricity metering and the fairness and impartiality of electricity trading, and is applicable to electricity meter data acquisition stations and on-site testing equipment at all levels.

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Abstract

The application discloses a kind of time correction method and system for ensuring the validity of electric energy meter period electric quantity, comprising: judging whether electric energy meter needs to be corrected, obtains the determination result;When the determination result indicates that electric energy meter needs to be corrected, determine the time correction strategy;Based on the time correction strategy selected and the preset time interval for obtaining electric energy meter period electric quantity, electric energy meter is time corrected.Therein, the time correction strategy includes: point-to-point time correction strategy and broadcast time correction strategy.The method of the present application can realize the clock correction of gateway electric energy meter while ensuring that period electric quantity is not lost, ensure the effectiveness and uniqueness of electric energy meter period electric quantity while carrying out electric energy meter clock time, ensure the legality of electric energy metering, ensure the fairness and justice of electric power trade;The method of the present application can be applied to electric energy meter acquisition master station at all levels, and the minute-level time correction of various gateway and user electric energy meters is realized through the master station;It can also be applied to electric energy meter field inspection equipment, and the time correction of electric energy meter is realized through field detection.
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Citation Information

Patent Citations

  • Electric energy meter clock calibration method

    CN105446122A

  • Electricity consumption information acquisition system clock management method and device

    CN110320791A