An electric energy metering method based on big data self-diagnosis

CN122310186BActive Publication Date: 2026-08-28ZHEJIANG JINGHE ELECTRONICS TECH
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Patent Information

Application Number
CN202610756512.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-05-29
Publication Date
2026-08-28
Estimated Expiration
2046-05-29

AI Technical Summary

Technical Problem

传统电能表过度依赖静态校准系数,难以追踪互感器铁芯磁化或采样电阻温漂等硬件老化引起的非线性、缓变性偏差,导致计量误差溯源困难且存在校准滞后

Benefits of technology

1.本发明通过构建基于大规模数据的动态基准模型,打破了传统电能计量设备对静态校准系数的依赖。利用时空图卷积网络提取的浮动基准线能够随环境温度、湿度以及电网质量的变化而动态调整,实现了对计量精度的在线、实时自检测。这不仅解决了计量设备全生命周期内因硬件老化导致的偏差溯源难题,还降低了人工现场校验的频率和成本,确保了贸易结算的绝对公平性。

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Abstract

The present application belongs to the field of data processing, and particularly relates to an electric energy metering method based on big data self-diagnosis. The present application discloses an electric energy metering method based on big data self-diagnosis, which comprises the following steps: acquiring multi-dimensional heterogeneous sensing data in real time, training a dynamic metering floating baseline by using a space-time graph convolution network, applying a variational mode decomposition and independent component analysis algorithm to decouple the metering data stream into load characteristics, environmental disturbance and hardware drift components, comparing the hardware drift component with the floating baseline in real time to calculate an error correction coefficient, converting the coefficient into a digital compensation factor to act on a data processing module, realizing online correction of the metering result and synchronously generating a health diagnosis report. By constructing a dynamic baseline model and a characteristic decoupling algorithm, the present application realizes real-time self-detection and digital closed-loop self-recovery of metering accuracy, eliminates external environmental interference, and improves the robustness, management level and operation and maintenance efficiency of the electric energy metering system.
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Citation Information

Patent Citations

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    CN121959340A

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