Detection of DC series arc in more electric aircraft power system based on optical spectrometry
作者机构：Center for More Electric Aircraft Power SystemNanjing University of Aeronautics and AstronauticsNanjing 211106People's Republic of China Departamento de Ingeniería EléctricaElectrónicaAutomática y Física AplicadaEscuela Técnica Superior de Ingeniería y Diseño IndustrialUniversidad Politécnica de MadridRonda de Valencia 328012 MadridSpain
出 版 物：《High Voltage》 (高电压（英文）)
年 卷 期：2020年第5卷第1期
页 面：24-29页
核心收录：
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学]
基 金：This work was supported in part by the National Natural Science Foundation of China(grant no.51807088) the Natural Science Foundation of Jiangsu Province(BK20170786) the Fundamental Research Funds for the Central Universities(no.XCA17003-04) the Postgraduate Research and Practice Innovation Program of Jiangsu Province(no.SJCX18_0099)
摘 要：Series arcing faults have been recognised as a hazardous phenomenon in the power system of more electric aircraft(MEA),especially with the increasing voltage level and power *** of the electrical method,the optical method can be used as an approach to detect arc fault with the advantages of fast response and immunity to electromagnetic *** is the basis of optical arc detection to determine the distribution spectrum range of direct current(DC)arc *** at series arc optical detection in the MEA DC system,a DC series arc test platform was established to measure the series arc *** spectrum was disassembled though empirical mode decomposition to extract characteristic wavelengths of arc light and denoised by means of wavelet decomposition and reconstruction(wavelet transformation)to reduce equipment *** resolve the baseline drift,the baseline of the arc spectrum measured was calculated and corrected based on Savitzky−*** experimental results indicate that there are several series arc characteristic spectra of the MEA DC system,including 309.3 and 324.5 nm in the ultraviolet ***,the arc spectrum with different metals,copper and aluminium,were contrasted,indicating the arc spectral behaviour is related to the melting/boiling point and chemical properties of the anode *** measurement of the series arc spectrum makes it more effective to apply optical detection in the MEA discharging faults diagnosis.
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