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原创 华北电力大学研究者提出准确判定变压器绕组形变的新方法
以该规律对绕组短路冲击信号的Hilbert能量谱进行子矩阵划分,修正累积效应的影响,分别计算其相对能量带熵增量。 图4 Hilbert能量时频分布 相对能量带熵增量从频带分布角度,对绕组能量分布的混乱程度进行了整体上的区分,但未能表明绕组对短路冲击的响应 ...
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