100 GW直线变压器驱动源的物理设计与模拟
Physical design and simulation for a 100 GW LTD system
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摘要: 基于已有四开关组直线变压器驱动源(LTD)模块设计了对1 Ω负载输出电流100 kA、脉冲上升时间小于60 ns的八开关组LTD模块，该模块采用轮辐式结构，由8个储能电容、气体开关、峰化电容器组并联向中心负载放电。在此基础上，给出了峰值功率100 GW、共10级的LTD装置的物理设计，该装置为同轴感应电压叠加型脉冲发生器。通过电路模拟和PIC模拟，对物理设计进行了检验，结果表明：10级八开关组100 kA LTD模块串联可使10 Ω负载获得超过100 GW的功率输出，脉冲上升时间小于60 ns，所选取的结构和参数能保证电子流的磁绝缘，高压脉冲能有效传输到负载。Abstract: An eight-switch linear tronsformar driver(LTD) module with 100 kA output capability was designed based on a former four-switch one. The spoke-like eight bricks discharge in parallel to drive the load in the center. A 10-stage 100 GW LTD system was physically designed with the newly designed modules. Circuit simulation with Pspice and particle-in-cell (PIC) simulation were done to assess the system’s physical properties. Simulations have proved that the design is reasonable. Voltage was magnetically and inductively added, and the system can drive a 10 Ω load with 100 GW pulse, with rise time of the pulse less than 60 ns.
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Key words:
- pulsed power source /
- linear transformer driver /
- laminar flow /
- circuit simulation /
- pic simulation
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