期刊论文

White Noise Suppression Method of Partial Discharge Ultrasonic Signal of Transformer Based on Improved Wavelet Threshold-CEEMDAN

中文

高压电器

1001-1609

2024

60

1

163-171

10.13296/j.1001-1609.hva.2024.01.019

国家自然科学基金青年基金项目(51407013)。

本校为第一机构

为了有效去除变压器局部放电超声信号中的白噪声干扰,提高后续局部放电模式识别及定位的准确性,提出了一种基于改进小波阈值和自适应噪声完全集合经验模态分解(complete ensemble empirical mode de...展开更多 为了有效去除变压器局部放电超声信号中的白噪声干扰,提高后续局部放电模式识别及定位的准确性,提出了一种基于改进小波阈值和自适应噪声完全集合经验模态分解(complete ensemble empirical mode decomposition with adaptive noise,CEEMDAN)的变压器局部放电超声波信号去噪方法。首先,通过对放电信号进行CEEMDAN分解得到一系列由高频到低频的本征模函数IMF(intrinsic mode function);然...

For removing effectively the white noise interference in the partial discharge ultrasonic signals of trans-former and improving the accuracy of subsequent partial discharge pattern recognition and location,a kind of de-noising method of partial discharge ultrasonic sign...MORE For removing effectively the white noise interference in the partial discharge ultrasonic signals of trans-former and improving the accuracy of subsequent partial discharge pattern recognition and location,a kind of de-noising method of partial discharge ultrasonic signal of transformer based on improved wavelet threshol...