爆磁压缩发生器通过脉冲变压器对脉冲形成线充电的理论分析
Analysis of PFL charged by MFCG through a pulse transformer
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摘要: 将爆磁压缩等效为电流源的方法，对爆磁压缩发生器通过脉冲变压器对脉冲形成线充电进行了理论分析，得出爆磁压缩发生器在负载上产生电流波形（简称负载电流）为直线情况和任意电流波形情况下充电电流和充电电压的表达式。分析表明变压器耦合互感与负载电流随时间变化增长率是脉冲形成线充电的两个重要参数，脉冲形成线第一个充电电压峰值与变压器的耦合互感和负载电流波形斜率成正比，负载电流波形斜率的变化可以改变充电电压峰值的时间，斜率不断增加可以延长第一个充电电压峰值时间，从而可能增加充电电压的幅值，提高爆磁压缩发生器能量的利用效率。Abstract: By taking the magnetic flux compression generator(MFCG) as an equivalent current source, the analysis is carried out for transmission line charged by MFCG through a pulse transformer. The analytic expressions of the charging voltage and the charging current of the transmission line are obtained in the cases of linear and arbitrary load current. It is shown that the mutual inductance of pulse transformer and the slope of load current are the important parameters for the charging process. The amplitude of the first peak of charging voltage is proportional to the mutual inductance of pulse transformer, and approximately proportional to the slope of the load current. It is also found that the change of the slope may change the time of voltage peak, and the time of voltage peak will be delayed
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