华中科技大学学报（自然科学版）2026，Vol.54Issue(1)：8-13,20,7.DOI:10.13245/j.hust.250057
高压大功率开关器件驱动电路的电磁散射分析
Electromagnetic scattering analysis of critical signals in high voltage and high power device gate driver
摘要
Abstract
In order to investigate the influence of electromagnetic scattering phenomenon of metal conductors on the electromagnetic interference generated by high-voltage high-power devices on the surface of drive boards,based on electromagnetic basic theory,the scattering effect of unidirectional electromagnetic field encountering ideal conductors was analyzed.Simulation experiments simulated the changes in scattering field between the observation point and the metal conductor in different directions and distances under near-field radiation and far-field radiation when the power device was used as a radiation source.The results showed that in the far-field,the scattering field oscillated and attenuated periodically from the boundary of the scattering body to the surrounding area,and the size of the scattering field exponentially decreased with the distance from the observation point to the scattering body;In the near-field,the scattered electric field increases in the direction of the initial electric field,while the scattered magnetic field decreases in the direction of the initial magnetic field change.The field variation law in the two directions perpendicular to the initial electromagnetic field is opposite.The size of the scattered field decays exponentially with the distance from the observation point to the scatterer.Finally,the distribution of the scattered field in the near-field situation was experimentally verified.关键词
高压大功率器件/驱动板卡/电磁散射/有限元发法/实验分析/感应电压Key words
high voltage and high power device/driver circuit/electromagnetic scattering/finite element method(FEM)/experimental analysis/induced voltage分类
信息技术与安全科学引用本文复制引用
许航宇,尹毅博,潘超,张楠..高压大功率开关器件驱动电路的电磁散射分析[J].华中科技大学学报（自然科学版）,2026,54(1):8-13,20,7.基金项目
国家电网公司总部科技项目(5500-202358691A-3-3-JC). （5500-202358691A-3-3-JC）
