摘要
通过电磁兼容理论分析与现场调试试验结果 ,指出由升压型主电路构成的燃料电池电动汽车用直流—直流变换器中存在的主要电磁干扰源是开关管Z1开断时产生的电压尖峰、二极管D1由导通变为截止时产生的反向浪涌电流和升压电感电流在Z1开断瞬间出现的高频振荡 .在此基础上 ,分析了干扰产生的机理以及传播途径 ,并提出了抑制电磁干扰所采取的必要措施 .
By electromagnetic compatibility (EMC) theory analysis and field experiments,it is indicated that the main source of electromagnetic interference (EMI) existing in the boost direct current/direct current (DC/DC)converter used in the fuel cell electric vehicle(FECV),is the voltage peak produced when the switch pipe Z1 switches,the reverse surge current produced when the diode D1 cuts-off from conduction and the high-frequency oscillation appearing at the point of the current in the boost inductance switching.On the basis of this,the principle producing EMI and the approach that EMI spreads is analyzed in details.Finally,this paper puts forward the necessary measures of restraining EMI.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第1期108-111,共4页
Journal of Tongji University:Natural Science
基金
国家'八六三'高技术研究发展计划资助项目 (2 0 0 3AA5 0 10 5 2 )
关键词
燃料电池
电动汽车
直流—直流升压变换电路
电磁干扰源
fuel cell
electric vehicle
boost direct current/direct current converter
electromagnetic interference sources
