航空科学技术2025，Vol.36Issue(4)：37-47,11.DOI:10.19452/j.issn1007-5453.2025.04.005
面向多电飞机的直流串联电弧磁流体模型研究
Research on DC Series Arc MHD Model For Multi-Electric Aircraft
摘要
Abstract
The study of DC series arc MHD model for multi-electric aircraft is of great significance for improving the ability of arc fault prediction and control,ensuring flight safety and promoting the development of electrified aviation technology.Aiming at the problem that the development characteristics and physical mechanism of DC series arc in multi-electric aircraft are still unclear.Based on the magnetohydrodynamics theory(MHD),this paper simulates the DC series arc caused by cable damage in multi-electric aircraft through continuous arc pulling,and constructs the dynamic arc model.By calculating the parameter distribution and change trend of electricity,magnetism,heat and flow physical fields,the influence of arc length change on arc physical characteristics is analyzed.By comparing and analyzing the experimental and simulation results of arc voltage and current,the accuracy of arc magnetic fluid model is verified.The simulation results show that the electric field intensity,magnetic flux density,arc temperature and conductivity are closely related to arc spacing.The experimental results show that the voltage and current root-mean-square(RMS)errors of the model are 0.837V and 0.137A for 270V power output,and 0.442V and 0.253A for 540V power output,which are better than the traditional mathematical fitting model.The research results can lay a theoretical foundation for the fault diagnosis of DC series arc under multi-electric aircraft.关键词
多电飞机/直流串联电弧/磁流体动力学模型/多物理场计算/模型验证Key words
multi-electric aircraft/DC series arc/magnetohydrodynamic model/multi-physical field calculation/model verification引用本文复制引用
徐卓砾,路昕洋,崔德智,尚雅慧,江军,张潮海..面向多电飞机的直流串联电弧磁流体模型研究[J].航空科学技术,2025,36(4):37-47,11.基金项目
国家自然科学基金(52277152) （52277152）
航空科学基金(20230040052001) （20230040052001）
江苏省大型科研仪器开放共享自主研究课题(TC2024A006) （TC2024A006）
南京航空航天大学2024年度"实验技术研究与开发"项目(SYJS202402Z) （SYJS202402Z）
南京航空航天大学研究生教育教学改革研究项目(2024YJXGG14) National Natural Science Foundation of China(52277152) （2024YJXGG14）
Aeronautical Science Foundation of China(20230040052001) （20230040052001）
Jiangsu Province Large-Scale Scientific Research Instrumentation Open-Sharing Independent Research Topics(TC2024A006) （TC2024A006）
Nanjing University of Aeronautics and Astronautics 2024"Experimental Technology Research and Development"Project(SYJS202402Z) （SYJS202402Z）
Graduate Edncation and Teaching Reform Research Project of NUAA(2024YJXGG14) （2024YJXGG14）
