Transformer surface vibration feature extracting method

The embodiment of the invention discloses a transformer surface vibration feature extracting method with definite physical significance. The transformer surface vibration feature extracting method isused for solving the problem of deficiency in transformer operation abnormality data and fault data in the prior art and can help select out features with maximum correlation with whole sample data and minimum redundancy with selected features. Classification results of instance data testify feasibility and effectiveness of the transformer surface vibration feature extracting method, so that the transformer surface vibration feature extracting method provides technical support for abnormality detection and fault analysis of transformer vibration signals. 针对目前变压器运行异常数据和故障数据缺失问题，本发明实施例公开了种物理意义明确的变压器表面振动特征提取方法，可以选择出对整个样本数据具有最大相关且对已选特征具有最小冗余的特征。实例数据的分类结果验证了方法的可行性和有效性，为变压器振动信号的异常检测和故障分析提供技术支持。