【摘要】 基于贝杰龙算法，建立了直线型变压器驱动源(linear transformer driver,LTD)放电支路和单级模块的全电路数值计算模型，结合气体开关火花通道电阻和单级LTD模块放电特性的实验结果对模型进行验证，实现了从放电支路到单级模块的自洽模拟。结果表明，考虑了气体开关火花通道电阻动态特性、放电支路间电磁耦合、开关触发导通时刻的电路模型，能够精确预测单级LTD的输出特性。单级LTD在充电±100 kV时，驱动近似匹配电阻负载，输出峰值功率为82 GW，负载的能量利用效率约为80%，其中气体开关火花通道电阻损耗能量占比为5.7%。该单级LTD全电路仿真方法可为LTD型脉冲功率装置的全电路模型仿真奠定基础。更多还原

【Abstract】 Based on the Bergeron algorithm, a full-circuit numerical calculation model of the discharge branch and the single-stage cavity of linear transformer driver(LTD) is established. The self-consistent simulation from discharge branches to the LTD cavity is realized by combining experimental results from spark channel resistance tests of gas switches and discharge characteristic tests of the LTD cavity. The results show that the output characteristics of the LTD cavity can be accurately predicted by taking into account the dynamic characteristics of the spark channel resistance of gas switches, the electromagnetic coupling between the discharge branches, and the triggering closed time of gas switches. When the LTD cavity is charged at ±100 kV, the peak output power is 82 GW, and the resistance load energy efficiency is about 80%; meanwhile, the energy loss ratio due to gas switch spark channel resistance is 5.7%. The single-stage LTD full-circuit simulation method established in this paper lays a foundation for the simulation of LTD pulsed power devices.更多还原