40kV/6kA引出Kicker磁铁脉冲电源设计  

40kV/6kA pulse power dupply for Kicker magnets

作　　者：王玮[1] 池云龙[1] 唐靖宇[1] 

机构地区：[1]中国科学院高能物理研究所,北京100049

出　　处：《强激光与粒子束》2007年第9期1575-1579,共5页High Power Laser and Particle Beams

基　　金：中国散裂中子源基金资助课题

摘　　要：从脉冲电源参数计算、电源整体设计、脉冲形成网络(PFN)设计和优化等方面介绍了中国散裂中子源快循环同步加速器引出Kicker磁铁脉冲电源的初步设计情况,提出一种新型的低阻抗PFN设计方法,给出了脉冲电源和PFN的参数,利用PSPICE程序仿真了充电电压为36.5 kV时磁铁的励磁脉冲电流波形,励磁电流脉冲幅值达到5.8 kA。仿真结果表明:PFN的单元电容电感相同时,采用较多的PFN节数,励磁电流脉冲宽度会变宽,电流脉冲前沿和平顶度没有显著变化;采用合适长度的电缆,可以有效避免反射电流对主脉冲电流波形产生影响。A 40 kV/6 kA pulsed power supply was designed for the rapid cycling synchrotron（RCS） extraction Kicker magnet of Chinese Spallation Neutron Source. The calculation of the pulsed power supply＇s parameters, the design of power supply＇ s system, the optimization of pulse forming network（PFN） are introduced. A new type of low impedance PFN is also presented. The magnet current pulse waveform was simulated hy PSPICE program in the situation of 36.5 kV charging voltage, and the amplitude of the pulse was 5.8 kA. The simulation results show that, with the same PFN section capacitor and inductor, the pulse length of the current is prolonged when more section number of PFN is chosen, while the rise time and flatness of the pulse has no significant changes, choosing the suitable length of transmission cable can avoid the aberration of main pulse waveform caused by reflection waves.

关 键 词：冲击磁铁 脉冲电源 脉冲形成网络 励磁电流 上升时间 

分 类 号：TL502[核科学技术—核技术及应用]