基于稀疏傅里叶变换的采煤机机载式变频器谐波干扰自动抑制方法
Automatic Suppression Method of Coal Mining Engine Carrier Frequency Converter Harmonic Interference Based on Sparse Fourier Transform
李勇1
作者信息
- 1. 三一重型装备有限公司,辽宁 沈阳 110027
- 折叠
摘要
为增强采煤机变频器谐波干扰抑制效果,提出基于稀疏傅里叶变换的采煤机机载式变频器谐波干扰自动抑制方法.该方法先通过稀疏傅里叶变换分析采煤机机载式变频器输出的电流信号,检测谐波干扰成分,后设计一个自适应形态学滤波器实现谐波干扰自动抑制.结果表明,设计方法能够有效抑制变频器输出电流中的谐波干扰成分,抑制效果良好.
Abstract
In order to enhance the harmonic interference suppression effect of the coal mining engine carrier frequency converter,the coal mining engine carrier frequency converter automatic suppression method based on sparse Fourier transform is proposed.This method first analyzes the current signal output by the coal mining engine carrier frequency converter by sparse Fourier transform,detects the harmonic interference component,and then designs an adaptive morphological filter to realize the automatic suppression of harmonic interference.The results show that the design method can effectively suppress the harmonic interference components in the output current of the converter,and the suppression effect is good.
关键词
稀疏傅里叶变换/采煤机机载式变频器/谐波干扰/自动抑制Key words
sparse Fourier transform/coal mining engine carrier frequency converter/harmonic interference/automatic suppression引用本文复制引用
出版年
2024
NETL
NSTL
万方数据