强激光脉冲电源电磁干扰的仿真与测试  

Simulation and measurement of electromagnetic interference in a pulsed supply of high power laser

作　　者：何勇[1] 陈德怀[1] 林福昌[1] 李劲[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《强激光与粒子束》2005年第6期921-924,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金资助课题(10175025)

摘　　要：以往对强激光脉冲电源的电磁兼容性设计一般以经验性为主,难以确保电源的稳定性和可靠性。基于电源主体结构,提出一种定量分析和计算强电磁干扰的方法。对传导干扰的仿真和现场测试表明,机架上每米的地电位差小于10V,机壳外的准静态磁场低于0.16×10-4T。测试和计算结果表明,电源电磁兼容性符合设计要求。Conventional methods for electromagnetic compatibility (EMC) design of high power supplies are mostly based on experience. It can not insure the stability and reliability of the supply. A method was proposed to quantitatively analyse the electromagnetic interference (EMI) according to the main structure of the supply. The conductive interference of the supply was simulated and measured in a practical supply, and the ground potential difference is less than 10 V (corresponding to unit of the enclosure). The quasi-static magnetic field as well as shielding efficiency is calculated, and the magnetic field outside the supply is less than 0.16 × 10-4 T. The results of both calculation and measurement indicate that performance of EMC of the supply can measure up to the design criterion.

关 键 词：强激光脉冲电源 电磁兼容 电磁干扰 仿真 测试 

分 类 号：TM862[电气工程—高电压与绝缘技术]