一种基于变频变能信号的配电网接地故障巡查方法
By using variable frequency and energy signal injection and a multi-criteria fusion diagnostic model, the problem that a single signal cannot cover multiple types of faults in the inspection of grounding faults in distribution networks is solved, achieving efficient fault type identification and location positioning, and improving the fault detection rate and diagnostic accuracy.
CN122109732BActive Publication Date: 2026-07-17LIAOYUAN POWER SUPPLY COMPANY STATE GRID JILIN ELECTRIC POWER +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LIAOYUAN POWER SUPPLY COMPANY STATE GRID JILIN ELECTRIC POWER
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
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Figure CN122109732B_ABST
Abstract
本发明涉及配电网技术领域，且公开了一种基于变频变能信号的配电网接地故障巡查方法，通过构建频率点与能量等级二维扫描矩阵，向配电网注入变频变能信号，解决了传统单一信号无法同时激励多类型隐蔽性故障的问题，显著提升了高阻接地、瓷瓶击穿等故障的特征信噪比和可辨识度。通过建立包含故障类型识别层与定位计算层的多判据融合诊断模型，将同一信号的多维度响应特征深度融合，解决了传统方法仅融合外部数据而无法利用信号内部多维特征的问题，实现了故障类型精准辨识与故障位置准确定位的协同。
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