强激光与粒子束, 2016, 28 (2): 025001, 网络出版: 2016-03-24  

感应电压叠加装置中角向传输线阻抗计算

Calculation of impedance of azimuthal transmission line in induction voltage adder accelerator
作者单位
中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术重点实验室, 四川 绵阳 621900
摘要
在进行感应电压叠加装置设计时,为了使初级脉冲形成与传输系统产生的快前沿高压脉冲均匀耦合到次级传输线,需要建立感应腔的二维电路模型对电磁波在角向传输线中的传播过程进行分析,并基于电路计算结果优化设计角向传输线阻抗分布规律,使次级传输线中电流能够均匀分布。由于角向传输线结构复杂,没有精确求解阻抗值的解析公式,介绍了一种基于电报方程和瞬态电磁场仿真求解复杂结构传输线阻抗值的方法,采用该方法对等宽度和变化宽度两种结构角向传输线阻抗值进行了评估。研究结果表明,相比于三平板传输线阻抗计算公式,采用微带传输线阻抗计算公式对角向传输线阻抗值进行求解结果更加精确。
Abstract
The impedance of an azimuthal transmission line should be accurately evaluated when we design and model the induction cavity of an induction voltage adder generator. Because of the complexity of the azimuthal transmission line, the impedance cannot be derived analytically. One method to calculate the impedance of a complex structure transmission line is introduced in this paper. This method is based on the telegraph equation and the transient EM simulation. The impedances of the azimuthal transmission lines with constant width and variable width are evaluated by using this method. The results show that the impedance of the azimuthal transmission line can be estimated by micro-strip transmission line formula, which is more accurate than the triplate transmission line formula.
参考文献

[1] Smith I D. Induction voltage adders and the induction accelerator family[J]. Physical Review Special Topics-Accelerators and Beams, 2004, 7:064801.

[2] Maenchen J, Cooperstein G, O’Malley J, et al. Advances in pulsed power-driven radiography systems[J]. Proceedings of the IEEE, 2004, 92(7):1021-1042.

[3] 邱爱慈,孙凤举. Z 箍缩和闪光照相用快脉冲功率源技术的发展[J]. 强激光与粒子束, 2008, 20(12):1937-1946. (Qiu Aici, Sun Fengju. Development of fast pulsed power driver for radiography and Z-pinch. High Power Laser and Particle Beams, 2008, 20(12):1937-1946)

[4] Goldsack T J, Bryant T F, Beech P F, et al. Multimegavolt multiaxis high-resolution flash X-ray source development for a new hydrodynamics research facility at AWE Aldermaston[J]. IEEE Trans Plasma Sci, 2002, 30(1):239-253.

[5] Ramirez J J, Prestwich K R, Smith I D. High-power, short-pulse generators based on induction voltage adders[J]. Proceedings of the IEEE, 1992, 80(6):946-957.

[6] Corley J P, Alexander J A, Pankuch P J, et al. SABRE: A 10-MV linear induction accelerator[C]//Proceedings of the 8th IEEE International Pulsed Power Conference. 1991: 920-923.

[7] Weidenheimer D, Corcoran P, Altes R, et al. Design of a driver for the Cygnus X-ray source[C]//Proceedings of the 13th IEEE International Pulsed Power Conference. 2001: 591-595.

[8] Wei Hao, Sun Fengju, Liang Tianxue, et al. Low voltage pulse injection test of a single-stage 1 MV prototype induction voltage adder cell[J]. Review of Scientific Instruments, 2014, 85:083561.

[9] 丛培天,张国伟,吴撼宇,等. 3 MV感应电压叠加器的磁感应腔研制[J]. 强激光与粒子束, 2011, 23(2):563-568. (Cong Peitian, Zhang Guowei, Wu Hanyu, et al. Design of inductive cavity for 3 MV induction voltage adder. High Power Laser and Particle Beams, 2011, 23(2):563-568)

[10] Smith I D, Bailey V L, Fockler Jr J, et al. Design of a radiographic integrated test stand (RITS) based on a voltage adder, to drive a diode immersed in a high magnetic field[J]. IEEE Trans Plasma Sci, 2000, 28(5):1653-1659.

[11] Thomas K, Beech P, Brown S, et al. Status of the AWE Hydrus IVA fabrication[C]//Proceedings of the 18th IEEE International Pulsed Power Conference. 2011:1042-1047.

[12] Wei Hao, Sun Fengju, Qiu Aici, et al. Optimized design of azimuthal transmission lines for the cell driven by two PFLs in induction voltage adders[J]. IEEE Trans Plasma Sci, 2013, 41(8):2421-2426.

[13] Peterson A F, Durgin G D. Transient signals on transmission lines: an introduction to non-ideal effects and signal integrity issues in electrical systems[M]. San Rafael: Morgan & Claypool Publishers, 2009: 20-21.

[14] 郭 帆,邹文康,陈 林. 长磁绝缘传输线动态特性[J]. 强激光与粒子束, 2014, 26:045010. (Guo Fan, Zou Wenkang, Chen Lin. Dynamic characteristics of long magnetically insulated transmission line. High Power Laser and Particle Beams, 2014, 26:045010)

[15] 呼义翔,黄 涛,曾正中,等. 同轴型磁绝缘传输线电流损失特性实验研究[J]. 强激光与粒子束, 2013, 25(5):1298-1302. (Hu Yixiang, Huang Tao, Zeng Zhengzhong, et al. Experimental studies of current-loss characteristics for coaxial magnetically-insulated transmission line. High Power Laser and Particle Beams, 2013, 25(5):1298-1302)

[16] Jennings C A, Chittenden J P, Cuneo M E, et al. Circuit model for driving three-dimensional resistive MHD wire array Z-pinch calculations[J]. IEEE Trans Plasma Sci, 2010, 38(4):529-539.

[17] Jennings C A, Ampleford D J, Jones B M, et al. Integration of MHD load models with circuit representations the Z generator[R]. SAND 2013-2690.

郭帆, 蒋吉昊, 龚伯仪, 陈林, 邹文康, 王勐, 谢卫平. 感应电压叠加装置中角向传输线阻抗计算[J]. 强激光与粒子束, 2016, 28(2): 025001. Guo Fan, Jiang Jihao, Gong Boyi, Chen Lin, Zou Wenkang, Wang Meng, Xie Weiping. Calculation of impedance of azimuthal transmission line in induction voltage adder accelerator[J]. High Power Laser and Particle Beams, 2016, 28(2): 025001.

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