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Study on the Asynchronous Discharge of Eight Superconducting Pulsed Power Supply Modules

Based on eight high-temperature superconducting pulsed power transformers (HTSPPT), a toroidal superconducting pulsed power supply (SPPS) is established in this paper. With an initial current of 500 A, the stored inductive energy is 18.426 kJ. The asynchronous discharge of the eight modules is studied to improve the pulse width of the output current. Simulation results show that six rectangular pulse currents with amplitude from 82.4 kA to 30 kA and pulse width from 2.81 ms to 11.40 ms can be obtained by adjusting the trigger delay time of each module. However, with the increase of the trigger delay time, the energy transfer efficiency and the smoothness of current waveform get worse. By adjusting the trigger delay time, this paper provides six different rectangular pulse currents, which can meet the needs of different applications.