Electromagnetic interference caused by electric load of more electric aircraft
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摘要: 多电飞机(MEA)电气系统越来越大量地采用电子变换器,使得电气系统内和系统间的电磁干扰(EMI)问题变得非常严重.基于MEA电气负载特性,将电气负载分为整流类、斩波类和逆变类,建模和仿真这3类主要电气负载在稳态和突加工作情况下的传导EMI电流,并对逆变类负载的EMI特性进行了实验验证.结果表明:负载对电源侧的EMI集中在电力电子器件开关频率及其倍频邻域;斩波环节后端连接的大功率电气负载的突加使电源线传导EMI特性发生明显变化,主要体现在幅度频谱极值所对应的频率上.研究结果对独立电气系统的EMI识别及滤波器设计具有指导意义.Abstract: As an increasing number of power electronic converters are used in the electrical system of more electric aircraft (MEA), electro-magnetic interference (EMI) problems are becoming more and more severe both within the electrical systems and between different systems. Based on the electrical load characteristics of MEA, electrical load was classified into rectification, chopping and inverter. The conduction EMI current of the three major electrical load during the stable operation and the load surge of electrical loads were studied by modeling and simulations. EMI characteristics caused by the inverter load obtained was verified by experiments. The research results show that the conducted EMI to the power line is concentrated in the switch frequency of the power electronic device and the multiple frequency or so; the step change of the high power electrical load after the Buck chopper circuit makes the conduction EMI characteristics change significantly, which reflected in the frequencies of local maximum of amplitude spectrum. The study results provide the guidance for the EMI identification and the filter design of an independent electrical system.
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[1] Emadi A,Ehsani M.Aircraft power systems:technology,state of the art,and future trends[J].Aerospace and Electronic Systems Magazine,2000,15(1):28-32. [2] Nya B H,Brombach J,Schulz D.Benefits of higher voltage levels in aircraft electrical power systems[J].Electrical Systems for Aircraft,Railway and Ship Propulsion,2012,15(1):16-18. [3] Naayagi R T,Forsyth A J,Shuttleworth R.High-power bidirectional DC-DC converter for aerospace applications[J].IEEE Transactions on Power Electronics,2012,27(11):4366-4379. [4] Brombach J,Schroter T,Lucken A,et al.Optimized cabin power supply with a+/-270 V DC grid on a modern aircraft[C]//Proceedings of the 7th International Workshop Compatibility and Power Electronics Conference.Piscataway,N J:IEEE Press,2011:425-428. [5] Brombach J,Lucken A,Nya B,et al.Comparison of different electrical HVDC-architectures for aircraft application[C]//Proceedings of the 2012 Electrical Systems for Aircraft,Railway and Ship Propulsion Conference.Piscataway,N J:IEEE Press,2012:16-18. [6] Sarlioglu B.Advances in AC-DC power conversion topologies for more electric aircraft[C]//Proceedings of the 2012 Transportation Electrification Conference and Expo.Piscataway,N J:IEEE Press,2012:18-20. [7] Ran L,Gokani S,Clare J,et al.Conducted electromagnetic emissions in induction motor drive systems—II:Frequency domain models[J].IEEE Transactions on Power Electronics,1998,13(4): 768-776. [8] Sullivan C R,Harris J H,Herbert E.Core loss predictions for general PWM waveforms from a simplified set of measured data[C]//Proceedings of the 2010 Applied Power Electronics Conference and Exposition.Piscataway,N J:IEEE Press,2010:1048-1055. [9] Sun J.Conducted EMI modeling and mitigation for power converters and motor drives[C]//Proceedings of the 2012 ESA Workshop on Aerospace.Piscataway,N J:IEEE Press,2012:21-23. [10] Zhu G,McDonald B,Wang K.Modeling and analysis of coupled inductors in power converters[J].IEEE Transactions on Power Electronics,2011,26(5):1355-1363. [11] 孟进,马伟明,刘德志,等.交流发电机整流系统传导EMI的时域模型与仿真分析[J].中国电机工程学报,2002,22(6): 75-79. Meng J,Ma W M,Liu D Z,et al.Time domain model and simulation analysis of the conducted EMI for alternator-rectifier systems[J].Proceedings of the CSEE,2002,22(6):75-79(in Chinese). [12] 中国人民解放军总装备部. GJB 860A—2006飞机电气负载和电源容量分析[S].北京:总装备部军标出版发行部,2007. PLA General Armament Department.GJB 860A—2006 Analysis for electric load and power source capacity of aircraft[S].Beijing:General Armament Department Military Standard Publishing Department,2007(in Chinese). [13] 高朝晖,林辉,张晓斌.同步发电机整流负载系统平均模型的研究[J].微特电机,2007,35(11):15-17. Gao C H,Lin H,Zhang X B.Study on the average model of synchronous generator with rectifying load[J].Small & Special Electrical Machines,2007,35(11):15-17(in Chinese). [14] 黄建,蔡孟夏. 同时带有整流负载和交流负载的同步发电机分析方法研究[J].电力电子,2005,3(1):41-47. Huang J,Cai M X.Research on the analytical method of aircraft synchronous generator with rectifying and load[J].Power Electronics,2005,3(1):41-47(in Chinese). [15] 国防科学技术工业委员会. HB 7745—2004飞机电气系统特性[S].北京:中国航空综合技术研究所,2004. Commission of Science Technology and Industry for National Defense.HB 7745—2004 Characteristics of aircraft electrical systems[S].Beijing:China Aero-Polytechnology Establishment,2004(in Chinese). [16] 中国人民解放军总装备部. GJB 181A—2003飞机供电特性[S].北京:总装备部军标出版发行部,2003. PLA General Armament Department.GJB 181A—2003 Aircraft electric power characteristics[S]. Beijing:General Armament Department Military Standard Publishing Department,2003(in Chinese).
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