浙江电力2025，Vol.44Issue(2)：95-102,8.DOI:10.19585/j.zjdl.202502009
基于改进HHT的谐波电流检测方法
A harmonic current detection method based on improved HHT
摘要
Abstract
To resolve the endpoint effects and mode mixing(MM)that arise during harmonic current detection using Hilbert-Huang Transform(HHT),an improved harmonic current detection method based on HHT is proposed.First,the paper employs an enhanced waveform matching endpoint extension method along with the modified en-semble empirical mode decomposition(MEEMD)technique to extend and decompose the harmonic current signal under detection.This process yields a series of intrinsic mode functionality(IMF).Next,the Hilbert Transform(HT)is applied to each IMF to obtain their instantaneous frequencies and amplitudes.Finally,by averaging these results,the amplitude and frequency information for each harmonic current component are extracted.Simulation analyses confirm that this method effectively resolves the endpoint effects and mode mixing encountered in HHT-based harmonic current detection.关键词
谐波电流检测/经验模态分解/模态混叠/端点效应/波形延拓Key words
harmonic current detection/empirical mode decomposition/MM/endpoint effects/waveform extension引用本文复制引用
张炜生,张国有,关富敏,刘友强,陈晓,柯威帆,郭成..基于改进HHT的谐波电流检测方法[J].浙江电力,2025,44(2):95-102,8.基金项目
云南省联合基金重点项目(202201BE070001-15) （202201BE070001-15）
