Modeling Methods for the Main Switch of High Pulsed-Power Facilities Based on Transmission Line Code  

作　　者：呼义翔 曾江涛 孙凤举 魏浩 尹佳辉 丛培天 邱爱慈 

机构地区：[1]State Key Laboratory of Intense Pulsed Radiation Simulation and Effect [2]Northwest Institute of Nuclear Technology

出　　处：《Plasma Science and Technology》2014年第9期873-877,共5页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.51307141,51077111);by the State Key Laboratory Foundational Research Funds of China(Nos.SKLIPR1302Z,SKLIPR1306)

摘　　要：Based on the transmission line code （TLCODE）, a circuit model is developed here for analyses of main switches in the high pulsed-power facilities. With the structure of the ZR main switch as an example, a circuit model topology of the switch is proposed, and in particular, calculation methods of the dynamic inductance and resistance of the switching arc are described. Moreover, a set of closed equations used for calculations of various node voltages are theoretically derived and numericMly discretized. Based on these discrete equations and the Matlab program, a simulation procedure is established for analyses of the ZR main switch. Voltages and currents at different key points are obtained, and comparisons are made with those of a PSpice L-C model. The comparison results show that these two models are perfectly in accord with each other with discrepancy less than 0.1%, which verifies the effectiveness of the TLCODE model to a certain extent.Based on the transmission line code （TLCODE）, a circuit model is developed here for analyses of main switches in the high pulsed-power facilities. With the structure of the ZR main switch as an example, a circuit model topology of the switch is proposed, and in particular, calculation methods of the dynamic inductance and resistance of the switching arc are described. Moreover, a set of closed equations used for calculations of various node voltages are theoretically derived and numericMly discretized. Based on these discrete equations and the Matlab program, a simulation procedure is established for analyses of the ZR main switch. Voltages and currents at different key points are obtained, and comparisons are made with those of a PSpice L-C model. The comparison results show that these two models are perfectly in accord with each other with discrepancy less than 0.1%, which verifies the effectiveness of the TLCODE model to a certain extent.

关 键 词：transmission line code （TLCODE） main switch dynamic inductance dy-namic resistance 

分 类 号：TN811[电子电信—信息与通信工程]