电器与能效管理技术Issue(6)：8-16,9.DOI:10.16628/j.cnki.2095-8188.2024.06.002
基于全息希尔伯特频谱分析的交流串联电弧故障电流特征研究
Research on Characteristics of AC Series Fault Arcs Based on Holo-Hilbert Spectral Analysis
摘要
Abstract
To solve the problem of extraction and analysis of alternative-current series arc fault characteristics,an analysis methodology that applies iterated masking empirical mode decomposition(itEMD)for current signal decomposition to obtain multi-layer intrinsic mode functions(IMFs)is proposed,and Holo-Hilbert transform(HHT)is utilized to represent high-dimensional amplitude-modulation-and-frequency-modulation(AM-FM)spectra,so that the high discriminative characteristic spectra of series arc faults can be achieved.The arc fault current signals are acquired under seven masking load modes in accordance with GB/T 31143-2014,and arc fault characteristics under different conditions are investigated by the proposed methodology.The presented study is of significant theoretical importance to the development of arc fault detection techniques.关键词
交流电弧/串联电弧故障/全息希尔伯特频谱分析/循环掩码经验模态分解Key words
alternative-current arcs/series arc faults/Holo-Hilbert spectral analysis/iterated masking empirical mode decomposition分类
信息技术与安全科学引用本文复制引用
吴自然,韩燕,陈冲..基于全息希尔伯特频谱分析的交流串联电弧故障电流特征研究[J].电器与能效管理技术,2024,(6):8-16,9.基金项目
温州市基础性科研项目(G20210020) （G20210020）
