摘要
为了确保模块化脉冲功率电源中的充电电源在脉冲成形网络(PFN)大电流放电时能正常工作,必须对充电电源的控制电路、检测电路等受到的辐射干扰及其抑制措施进行分析和研究。通过有限元数值分析软件Ansoft Maxwell对集成了充电电源、储能电容和脉冲成形网络的模块化脉冲功率电源进行了3维实体建模和电磁场仿真研究。结果表明:材质电导率和磁导率越大,机壳屏蔽效能(SE)越好;当机壳上开孔为圆阵孔时,屏蔽效能优于其他等面积的孔的屏蔽效能;当机壳厚度接近趋肤深度时,屏蔽效能变化较小;当机壳内印刷电路板(PCB)平行于调波电抗时,受到干扰最小。
In order to ensure that the capacitor charging power supply of modular pulsed power source to work reliably in intense pulse current environment in pulse forming network（PFN）, it is necessary to analyze the magnetic interference and its suppression methods on the control and detection circuits of capacitor charging power supply. On the basis of the finite element analysis software Ansoft Maxwell,we research the modular pulsed power source, which is integrated by capacitor charging power supply, energy storage capacitor, and pulse forming network by 3D modeling and electromagnetic simulation. The results show that the shielding effectiveness（SE） of enclosure enclosure is better with larger magnetic permeability and electric conductivity. Compared with other shape holes, circular array holes are more suitable for improving SE. Moreover, the SE tends to be stable when the thickness of enclosures approaches surface effect depth. When printed circuit boards（PCBs） are placed parallel with the smoothing inductor, there is the least electromagnetic interference.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2016年第6期1974-1980,共7页
High Voltage Engineering
基金
国家自然科学基金(51107050)~~
关键词
脉冲功率电源
脉冲成形网络
调波电抗
充电电源
磁场辐射干扰
磁场屏蔽效能
pulsed power source
pulse forming network
modulating inductor
capacitor charging power supply
electromagnetic radiation compatibility
magnetic shielding effectiveness
