H. Canacsinh, L. Redondo, F. F. Silva, E. Schamiloglu
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引用次数: 2
摘要
提出并讨论了双极固态马克思发生器拓扑结构的状态空间模型，该模型考虑了寄生电容的影响，可作为分析电路运行的工具。建模的目的是帮助设计工程师提高电路的工作性能，以减少损耗，并帮助选择半导体电流额定值。仿真结果表明，马克思单元与地之间的寄生电容会对固态开关产生明显的负载，并给电路的工作带来新的条件。这些初步结果与实验室原型的实验结果一致，该原型由4级组成，每个级由1200 V igbt和二极管组成，在1000 V直流输入电压和1 kHz频率下工作，输出5 kV和10µs脉冲。
Modeling of a solid-state Marx generator with parasitic capacitances for optimization studies
A state-space model of a bipolar solid-state Marx generator topology, including the influence of parasitic capacitances, is presented and discussed as an instrument to analyze the circuit operation. The modeling aims to assist the design engineer to enhance the circuit operating performance in order to reduce the losses and to aid in the selection of the semiconductor current ratings. Simulation results show that parasitic capacitances between Marx cells to ground can significantly load the solid-state switches and introduce new conditions in the operation of the circuit. These preliminary results show good agreement with experimental ones from a laboratory prototype comprising 4 stages, each assembled with 1200 V IGBTs and diodes, operating with 1000 V dc input voltage and 1 kHz frequency, giving 5 kV and 10 µs output pulses.
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