一种集成式变电设备绝缘状态异常早期监测预警方法
By constructing a first and second exponent of time-series current data and adaptively adjusting the discharge quantity warning threshold, the problem of misjudgment and missed judgment in traditional monitoring methods under complex electromagnetic interference environments is solved, and accurate monitoring and early warning of the insulation status of power equipment are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UHV CO OF STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD
- Filing Date
- 2026-04-16
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional methods for monitoring the insulation status of power equipment are prone to misjudging or missing early insulation abnormalities in complex electromagnetic interference environments, making it difficult to meet the high reliability requirements of power grid early warning.
An integrated method for early monitoring and warning of abnormal insulation status in substation equipment is adopted. By collecting time-series current data, filtering pulse signal points, constructing a first index and a second index, and adaptively adjusting the discharge quantity warning threshold based on the comprehensive abnormal index, abnormal insulation status can be determined and warned.
It accurately distinguishes between partial discharge and electromagnetic interference signals, improves the anti-interference capability of insulation condition monitoring of power equipment and the sensitivity of early weak defect identification, and avoids false alarms and missed detections.
Smart Images
Figure CN122063398B_ABST