一种电能表外置断路器自动分合闸控制方法

By optimizing the opening and closing control of the external circuit breaker of the energy meter through a dynamic adjustment mechanism and a baseline power model, the problems of untimely power fluctuation response and inappropriate closing time in the existing methods are solved, thus realizing the efficient and safe operation of the power system.

CN120221301BActive Publication Date: 2026-07-17YANTAI DONGFANG WISDOM ELECTRIC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANTAI DONGFANG WISDOM ELECTRIC
Filing Date
2025-04-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing external circuit breaker control methods for electricity meters cannot reflect power fluctuations in a timely manner, resulting in inaccurate power calculations, a lack of flexible response capabilities, frequent circuit breaker operation, and inappropriate closing times, which affect the stability and security of the power system.

Method used

A dynamic adjustment mechanism based on the power change rate is adopted to construct a baseline power model based on periodic fluctuations and phase disturbances. Power data is acquired through non-uniform random sampling, and the time window and recovery time threshold are dynamically adjusted. Combined with the exponential decay factor and intelligent correction delay mechanism, the opening and closing control strategy is optimized.

Benefits of technology

It improves the accuracy and flexibility of power calculation, reduces the risk of false triggering and premature closing, enhances the adaptability and robustness of power equipment, and ensures the efficient and safe operation of the power system.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种电能表外置断路器自动分合闸控制方法,包括以下步骤:通过电能表进行实时数据采集,然后计算每个采样点的瞬时功率;同时设置动态时间窗口,采用基于功率变化率的动态调整机制来调整时间窗口的大小;在动态时间窗口内,使用当前时间窗口内所有采样点的瞬时功率值计算得到动态时间窗口内的平均功率;构建基于周期性波动和相位扰动的基线功率模型来计算基线功率,根据实际平均用电功率与基线功率之间的差异计算得到功率偏离;基于功率偏离判断是否存在异常波动并触发电能表外置断路器分合闸控制策略。本发明具有及时反映功率波动、功率计算结果准确性、灵活响应能力好、分合闸时机更加适宜等优点。
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