动态级联型爆磁压缩发生器由多级构成,后一级俘获前一级的磁通进而将能量放大.用镜像电流法计算装置等效电感和电阻,用磁通俘获模型计算两级间磁通耦合,并假设损耗电阻正比于直流电阻.用该等效电路方法计算了一种两级动态级联型爆磁压缩发生器的静态和动态电路参数,并对其输出电流波形进行了模拟,同实际测量和实验结果进行了比较,同时对该装置通过脉冲变压器对脉冲形成线的充电过程进行了简单的模拟计算.结果表明,该计算方法对级联型爆磁压缩发生器的优化设计和应用研究具有较好的指导作用.另外两级磁通俘获模型对于间接馈电(线圈或永磁体)装置模拟计算也有一定的参考价值.

A cascaded helical explosively-driven magnetic flux compression generator (HMFCG) has more than one stage and the follow stage captures the magnetic flux of the preceding one and further amplifies the energy. In this paper, the inductance and resistance computation uses the image current model and the magnetic flux coupling between the two stages takes the capture model. At the same time the equivalent magnetic flux loss resistance is supposed to be directly proportional to the equivalent direct current resistance. The computated results of dynamic-cascaded HMFCG fit the experiment data to some extend. This equivalent circuit model is simple and practical, which can be used to optimize the HMFCG parameters and applications. Additionally, the capture model has some reference values to computing the indirect feed system of the magnetic flux compression generators (e.g. indirect feed coil and permanent magnet).