基于电流—磁场数据融合和交叉注意力的GIS母线电接触缺陷识别
气体绝缘组合电器(GIS)母线触头的对接深度不足、对中度偏差和弹簧松弛等接触缺陷会显著增加接触电阻,引发过热甚至绝缘击穿事故。针对现有检测方法在复杂工况下灵敏度不足的问题,文中提出一种基于电流—磁场双模态数据融合与交叉注意力机制的缺陷识别算法。通过GIS原型试验平台同步采集4种典型工况下的瞬态电流信号与16通道空间磁场分布数据,构建多物理场数据集;采用Mel滤波器提取电流时频特征,通过对称点模式(SDP)表征磁场空间特性;进而设计双分支ResNet-18网络分别处理两类特征 ...
谢志杨, 彭涛, 敬磊
doaj
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