Development of a magnetic core direct current reset system of the multi-pulse induction cells at burst mode
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摘要: 对多组磁芯进行并联复位时，磁芯各次励磁工作点不一致，会导致装置运行状态不够稳定。将原高功率猝发多脉冲直线感应加速器感应腔磁芯脉冲并联复位系统改造为直流复位系统，该直流复位系统利用继电器对每个感应腔的复位电路进行单独控制，在使用可以周期性重复输出的恒流源的条件下，实现了对多组磁芯一对一的直流复位，解决了脉冲并联复位引起的磁芯各次励磁工作点不一致的问题。工程实施中，系统通过两套恒流源与8套切换控制箱协同工作对94组感应加速腔磁芯进行复位，显著降低了系统复杂度与维护成本。实际应用验证表明，改进后加速器的多脉冲稳定性显著提升，加速器束心位置抖动由1.3 mm降至1 mm以下。介绍了猝发多脉冲感应腔磁芯直流复位系统的工程设计思路、关键器件以及最终的工程布局和运行效果。Abstract: For a facility used multi-group magnetic cores, it's operation stability will be affected by the different working points of multi-group magnetic cores reset in parallel. A direct current reset system of the multi-pulse induction cells is developed instead of the original parallel pulsed reset system of a multi-pulse high power Linear Induction Accelerator (LIA) at burst mode. Resetting multi-group magnetic cores one by one is realized by separate relay switch for every induction cell and constant current sources with periodical output with the direct current reset system, the inconsistency in working points caused by parallel pulsed reset is effectively resolved. During engineering implementation, the system operates with two sets of constant current sources and eight switch control boxes to reset 94 groups of induction cell magnetic cores, significantly reducing system complexity and maintenance costs. Practical validation demonstrates that the improved accelerator exhibits enhanced multi-pulse stability, with beam centroid position jitter reduced from 1.3 mm to less than 1 mm. This paper describes the physics design of the direct current reset unit, and introduces the layout of the whole reset system which include the main units. The improvement effect is also presented in this paper.
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图 1 脉冲复位与直流复位电路示意图
Figure 1. Layout of the pulse current reset circuit and direct current reset circuit
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[1] 袁帆, 宋岚. 基于脉冲增益的开关电源磁芯复位仿真[J]. 计算机仿真, 2022, 39(5):264-267,303 doi: 10.3969/j.issn.1006-9348.2022.05.052Yuan Fan, Song Lan. Simulation of magnetic core reset of switching power supply based on pulse gain[J]. Computer Simulation, 2022, 39(5): 264-267,303 doi: 10.3969/j.issn.1006-9348.2022.05.052 [2] 汤铭. 纳秒级脉冲电源的研究与设计[D]. 南京: 东南大学, 2018: 1-67Tang Ming. Research and design of nanosecond pulse power supply[D]. Nanjing: Southeast University, 2018: 1-67 [3] 徐海鹏, 杨兰均, 张志远, 等. 脉冲变压器磁芯重复频率复位电路的研究[J]. 强激光与粒子束, 2018, 30:015002 doi: 10.11884/HPLPB201830.170323Xu Haipeng, Yang Lanjun, Zhang Zhiyuan, et al. Repetitive reset circuit of magnetic core of pulse transformer[J]. High Power Laser and Particle Beams, 2018, 30: 015002 doi: 10.11884/HPLPB201830.170323 [4] 王庆峰, 车永旺, 李相强, 等. 基于能量回收原理脉冲变压器复位系统仿真与实验研究[J]. 强激光与粒子束, 2022, 34:095012 doi: 10.11884/HPLPB202234.210432Wang Qingfeng, Che Yongwang, Li Xiangqiang, et al. Simulation and experimental research of pulse transformer reset system based on energy recovery principle[J]. High Power Laser and Particle Beams, 2022, 34: 095012 doi: 10.11884/HPLPB202234.210432 [5] Ashby S, Drury D, James G, et al. CLIA - a compact linear induction accelerator system[C]//Proceedings of the Eighth IEEE International Conference on Pulsed Power. 1991: 940-942. [6] Rose E A, Dalmas D A, Downing J N, et al. Testing pulse forming networks with DARHT accelerator cells[R]. LA-UR-01-3112, 2001. [7] 黄子平, 蒋薇, 叶毅. 多脉冲直线感应加速器外接复位系统[J]. 强激光与粒子束, 2014, 26:045101 doi: 10.11884/HPLPB201426.045101Huang Ziping, Jiang Wei, Ye Yi. Reset system for multi-pulse linear induction accelerator[J]. High Power Laser and Particle Beams, 2014, 26: 045101 doi: 10.11884/HPLPB201426.045101 [8] Takayama K, Briggs R J. Induction accelerators[M]. Berlin, Heidelberg: Springer, 2011. [9] 王淦平, 谭杰, 向飞, 等. 激磁电感对直线变压器输出波形顶降的影响[J]. 强激光与粒子束, 2010, 22(12):3062-3066 doi: 10.3788/HPLPB20102212.3062Wang Ganping, Tan Jie, Xiang Fei, et al. Effect of magnetizing inductance on pulse waveform drop of linear transformer drive[J]. High Power Laser and Particle Beams, 2010, 22(12): 3062-3066 doi: 10.3788/HPLPB20102212.3062 [10] 周良骥, 邓建军, 陈林, 等. 磁芯伏秒数对直线变压器驱动源输出参数的影响[J]. 强激光与粒子束, 2007, 19(1):155-159Zhou Liangji, Deng Jianjun, Chen Lin, et al. Influence of volt-second product of magnetic core on output of linear transformer driver[J]. High Power Laser and Particle Beams, 2007, 19(1): 155-159 [11] 陈林, 周良骥, 蒋吉昊, 等. 基于方波LTD的3 MV闪光照相驱动器设计[J]. 强激光与粒子束, 2017, 29:115001 doi: 10.11884/HPLPB201729.170189Chen Lin, Zhou Liangji, Jiang Jihao, et al. Design of 3 MV flash radiographic driver based on square pulse LTD[J]. High Power Laser and Particle Beams, 2017, 29: 115001 doi: 10.11884/HPLPB201729.170189 [12] Wei Hao, Yin Jiahui, Zhang Pengfei, et al. Development of a 4-MV, 80-kA-induction voltage adder for flash X-ray radiography[J]. IEEE Transactions on Plasma Science, 2019, 47(11): 5030-5036. doi: 10.1109/TPS.2019.2946685 -
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