Marx发生器等效对地分布电容估算方法
Methods for estimating equivalent stray capacitance to ground of Marx generator
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摘要: 介绍了两种估算Marx发生器等效对地分布电容的方法：逐级累积法和能量守恒法。逐级累积法通过近似求出各级对地电容对Marx发生器等效对地分布电容的贡献，并将之累加得到发生器等效对地分布电容；能量守恒法认为各级对地电容存储的能量之和与发生器等效对地分布电容存储能量相同，从而推导出发生器的等效对地分布电容。采用两种方法计算了闪光二号加速器发生器的对地等效分布电容，并与实测值进行了对比。两种方法计算结果均为114 pF，实测值为109 pF，二者相差4.6%。Abstract: This paper introdues two estimating methods of equivalent stray capacitance to ground of Marx generator, i.e., step accumulation method and energy conservation method. In step accumulation method, every step stray capacitance is approximately calculated, then accumulated as the equivalent stray capacitance of Marx generator. Energy conservation method derives the equivalent stray capacitance, based on the assumption that the energy stored in each step capacitance is the same as that in equivalent stray capacitance under the voltage of output point of Marx generator. Comparison of equivalent stray capacitances calculated by the two methods and the experimental result was made for the Marx generator of Flash-Ⅱ accelerator. The theoretically calculated results are both 114 pF, and the experi
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