变压器运行风险评估方法、装置、电子设备及存储介质

By combining model-driven and data-driven approaches, the overload risk and random failure risk of transformers are comprehensively assessed, solving the problem that existing technologies fail to consider the differentiated operation and environmental conditions among transformer clusters, and achieving accurate assessment and management of the operational risks of residential transformers.

CN117252428BActive Publication Date: 2026-07-17ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ELECTRIC POWER RES INST CHINA SOUTHERN POWER GRID CO LTD
Filing Date
2023-10-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies have relatively limited research on the operational risks of residential transformers, failing to consider the differentiated operation and environmental conditions among transformer clusters, resulting in risk assessment results that are out of touch with reality.

Method used

A model-data hybrid approach is adopted, combining a transformer temperature rise calculation model and a dual-state meteorological model. By calculating the top oil temperature, winding hot spot temperature and outdoor meteorological data, the overload risk, aging acceleration factor and random failure risk of the transformer are comprehensively evaluated, and a comprehensive value of operation risk is constructed.

Benefits of technology

It enables a comprehensive and reasonable assessment of transformer operation risks, and can quickly and accurately calculate the overall risk value of transformers. It is applicable to a large number of residential transformers and provides decision support for risk management measures.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种变压器运行风险评估方法、装置、电子设备及存储介质,用于解决现有相关技术对于住宅变压器运行风险研究相对有限,并未考虑变压器集群间差异化运行及环境工况,容易使得风险评估结果脱离实际的问题。所述方法包括:首先获取待评估变压器的顶油温度以及绕组热点温度,并基于顶油温度以及绕组热点温度,计算第一过载风险值;接着结合绕组热点温度,计算待评估变压器的老化加速因子,并根据老化加速因子,计算第二过载风险值;然后获取室外气象数据,根据室外气象数据,计算待评估变压器的随机失效风险值;最后采用第一过载风险值、第二过载风险值以及随机失效风险值,计算用于对待评估变压器进行风险评估的运行风险综合值。
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