Gaoya dianqi利用声音信号对配电设备进行状态监测具有廉价、无接触的优势，但也存在强环境噪声干扰的问题。已有研究利用环境噪声与配电变压器运行声音时、频域自相似性差异的采用无类簇参数的聚类算法进行去噪并取得了较好的仿真结果。不同运行工况的变压器故障噪声存在差异。若该去噪方法造成了变压器声音样本的不同运行工况缺漏，筛选后声音样本集可能无法包含早期故障的声音样本导致后续状态识别环节漏判。因此文中以位于不同工作环境的箱式变压器为例，根据配电设备运行声音与环境噪声时、频域自相似性差异，筛选出不受环境噪声干扰的声音样本 ...
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