Current distribution during conduction and POS opening on GIT8

A. Kim, B. Kovalchuk, V. Kokshenev, N. Kurmaev, S. Loginov, F. I. Fursov, V. P. Jakovlev
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引用次数: 2

Abstract

The concept of the multi module pulsed power system using the inductive energy storage (IES) technology may be developed on a base of one of two possible plasma opening switch (POS) designs. First is the multi POS design with the number of the switches being equal to the number of the modules. The main advantages of this design are the possibility to perform the full scale investigation of the single module prototype including the POS before the total system will be built, and the possibility to increase the power of the system by adding some number of the well known elements. The main disadvantage of the multi POS design seems to be the jitter in the switch openings-the problem which is not solved at present. The second, single POS design, presumes one POS switching the energy from all the modules into the load. The main advantage of the design is the absence of the POS synchronization problem. In the same time the single POS design requires building of the total system before the POS could be tested resulting in a risk of worse opening or some other problems which may appear at increased POS current level. The GIT4-GIT8 facilities at HCEI represent a test bed allowing investigation of the single POS design at successively increasing POS current (2.5-5 MA). The goal of the experiments described was to clear the current distribution in the switch region on GIT8 and to determine possible restrictions which could limit the application of the given single POS design.
GIT8导通和POS开通时的电流分布
采用电感储能技术的多模块脉冲电源系统的概念可以在两种可能的等离子体开断开关(POS)设计的基础上发展。首先是多POS设计,交换机的数量等于模块的数量。本设计的主要优点是可以在构建整个系统之前对包括POS在内的单模块原型进行全尺寸调查,并且可以通过添加一些已知元素来增加系统的功率。多POS设计的主要缺点似乎是开关开度的抖动,这是目前尚未解决的问题。第二种是单POS设计,假设一个POS将所有模块的能量转换为负载。该设计的主要优点是没有POS同步问题。同时,单个POS机的设计需要在POS机测试之前建立整个系统,这导致了在POS机电流水平增加时可能出现的开度差或其他一些问题的风险。HCEI的GIT4-GIT8设备代表了一个测试平台,允许在连续增加POS电流(2.5-5 MA)的情况下研究单个POS设计。所述实验的目标是清除GIT8上开关区域的电流分布,并确定可能限制给定单一POS设计应用的可能限制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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