Circuit Model of Magnetically-Insulated Induction Voltage Adders Based on the Transmission Line Code

Based on the transmission line code (TLCODE), a 1-D circuit model used for the analysis of magnetically-insulated induction voltage adders (MIVAs) was developed. Using cells improved from those of the JianGuang-I facility, a 10-stage MIVA was conceptually designed, and its equivalent TLCODE circuit model was described in detail with consideration of the magnetic insulation. To verify the effectiveness of this model, simulation results were compared with those of a PSPICE model (with no electron emission) under both synchronously triggering mode and ideal time-sequence triggering mode. The comparisons show that calculation results of these two models are accord with each other perfectly (within 0.1%). In addition, features of the calculation results were particularly analyzed and verified by the existent literatures. Considering the magnetic-insulation process, the inner stalk of the 10-stage MIVA was designed, and its output parameters were simulated with various electron emission thresholds (150, 200, and 250 kV/cm). Furthermore, qualitative analysis was done to present the model´s abilities of the magnetic-insulation treatment.