迭代EMD-ICA与Levkov联合的瞬态响应工频干扰抑制方法
Anti-power Interference Method Combining Iterative EMD-ICA and Levkov for Transient Response
任杰 1薛钟 1王浩 1董贝1
作者信息
- 1. 南京国电南自电网自动化有限公司,江苏 南京 211153
- 折叠
摘要
瞬态响应信号的获取过程中不可避免会引入工频干扰及工频谐波干扰,且具有非平稳小信号、工频干扰频率游动和频带混叠的特点,常规方法处理效果较差.针对该问题,提出一种基于迭代EMD-ICA与Levkov联合的瞬态响应工频干扰抑制方法.将EMD和ICA结合起来,通过EMD构造参考信号,从而满足ICA的使用条件来进行工频干扰抑制,由迭代EMD-ICA来克服工频频率游动的问题,使用Levkov法进行再次滤波来解决工频谐波干扰问题.
Abstract
In the process of acquiring transient response signals,power frequency interference and power frequency har-monic interference will inevitably be introduced,which feature non-stationary small signal,unfixed interference frequency swimming and frequency band aliasing,making the conventional methods inadaptable.Trying to address this problem,this paper proposes a transient response power frequency interference suppression method based on iterative EMD-ICA and Levkov combination.The EMD and ICA are combined,and the reference signal is constructed through EMD,so that the power frequency interference suppression can be carried out to meet the conditions of ICA use.The problems of power fre-quency swimming and power frequency harmonic interference are overcome by iterating EMD-ICA Levkov method,re-spectively.
关键词
瞬态响应信号/工频干扰/EMD/ICA/LevkovKey words
transient response signal/power frequency interference/EMD/ICA/Levkov引用本文复制引用
出版年
2024
NETL
NSTL
万方数据