摘要
为了更好的贯彻国军标GJB151A和GJB152A-97，提出了对传导与辐射测试项目的适用范围、频率范围、极限值大小进行剪裁的方法。通过对整流器和输入平滑滤波器上的共模与异模电流的计算得出，当测试频率为400Hz时，若被测设备功率〉0．2kVA且负载电流〉1A，允许将CE101项极限值放宽5dB。根据开关电源的拓扑结构模型与典型的开关电流波形，推导出当测试频段低于2MHz时，允许将CE102项极限值放宽10dB〉V。通过RE101项测试配置图，得出距离发射源7cm处测量的磁场密度极限值应是：30Hz时为100mG；60Hz时为25mG；120Hz时为6．6mG。根据发射源到接收天线耦合模型，确定在2～30MHz频段中，RE102项的极限值不得剪裁。依照军标GJB3567—99《军用飞机雷电防护鉴定试验方法》以及在实际飞行场地中采用410A敏感度测试系统进行测试，结果显示，通过剪裁测试的无人机各机载设备能正常工作，未出现任何设备失灵或降级情况，说明该剪裁法能够满足无人机电磁兼容的要求。
A novel tailoring method for conducting Electromagnetic Compatibility（EMC） testing on applicable test range, frequency band and limit size is presented for better use of national military standards GJB151A and GJB152A-97. After calculations of common-mode and differential-mode on rectifier and brute force filter,the limits of CE101 testing can be broadened up to 5 dB at 400 Hz in the conditions of the power of Equipment Under Test（EUT） below 0.2 kVA and load circuit above 1 A. Based on the topology structure of switch power source and typical switch current wave, the limits in CE012 test can increase by 10 dBμV when the testing frequency band width is below 2 MHz. According to the scheme of RE101 testing, the limits of magnetic emission measured from 7 cm away emission source are 100 mGat 30 Hz, 25 mG at 60 Hz and 6.6 mG at 120 Hz. Based on the coupling mode of emission source and receive antenna, it is confirmed that the limits of RE102 should be strictly controlled in 2-30 MHz bandwidth. The UAV is tested in real flying ground by 410A susceptivity testing system and by simulated Electromagnetic Pulse（EMP） test according to military testing method GJB3567-99, the results reveal that the air-borne equipment based on this tailored testing method can work normally and do not be degraded, which shows that this tailoring method can satisfy the requirement of EMC of UAV.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2009年第2期380-387,共8页
Optics and Precision Engineering
基金
'十五'科学技术预先研究项目(No.014132506021)
关键词
电磁兼容
传导测试
辐射测试
国军标
无人机
electromagnetic compatibility
conducting testing
radiating testing
national military standard
unmanned aerial vehicle
