摘要
为满足脉冲磁窗技术对磁体激励电流的需求(平台期时间1～10ms可调,最小值约24kA),研究了一种能量利用率高、能库小的多电容器组分时放电电源。设计了脉冲电源的拓扑结构,基于仿真分析了电源参数与电流纹波、电容器组路数之间的关系,及其对放电回路参数变化的敏感性,给出了6路电容器组分时放电的优化结构,并通过实验进行了验证。实验过程中通过晶闸管串联提高了其关断的可靠性,通过二极管三串两并的方式解决了重频模式下二极管承受反向电压能力下降的问题,进一步提高了电源放电的可靠性。
A novel pulsed power supply with high energy efficiency using multiple capacitor banks discharging sequentially is investigated to generate the demanded pulsed current (flattop time 1-10 ms, minimum 24 kA) for the pulsed magnetic window technology. The electrical topology is designed and the relationships of power supply parameters, discharging branches and current ripples as well as their sensitivities to the variation of circuit loop parameters are analyzed. An optimized structure of six discharging branches is proposed and validated by the experiments. The turn-off reliability of the main discharging switches are improved by making them in series. The ability to endure the reverse voltage of crowbar diode when turning off is enhanced by a crowbar module consisting of two branches in parallel with three tandem diodes in each branch.
作者
凌文斌
于治国
鄂鹏
马勋
李洪涛
徐风雨
Ling Wenbin;Yu Zhiguo;E Peng;Ma Xun;Li hongtao;Xu Fengyu(Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China;Institute of Fluid Physics, CAEP, P. O. Box 919-107, Mianyang 621900, China;Fundamental Space Science Research Center, Harbin Institute of Technology, Harbin 150001, China)
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2019年第4期103-109,共7页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(51577043)
