An Improved Repetitive Inductive Pulsed Power Supply Circuit With ICCOS Technique

Autor: Yunzhu An, Cunshan Zhang, Xingyu Zuo, Yadong Zhang, Xiaoyu Liang, Zhenmei Li, Haitao Li
Rok vydání: 2020
Předmět:
Zdroj: IEEE Transactions on Plasma Science. 48:1082-1087
ISSN: 1939-9375
0093-3813
DOI: 10.1109/tps.2020.2978553
Popis: With the development of semiconductor switches in recent years, inductive energy storage has shown a good application potential in pulsed-power supplies. In our previous studies, a repetitive inductive pulsed-power supply (IPPS) circuit topology was proposed to generate continuous current pulses. An insulated-gate bipolar transistor (IGBT) is used as the main switch to cut off the charging current in this topology. Limited by the current turning off ability of the main switch, it may encounter difficulties in expanding to higher charging currents. In this article, with the concept of inverse current commutation with semiconductor devices (ICCOS) switch, which is proposed by the German-French Institute of Saint Louis (ISL), an improved repetitive IPPS circuit topology is proposed by using a bridge current commutation unit as ICCOS. The thyristor acts as the main switch in the improved circuit and the charging current is turned off by a precharged capacitor. To turn off the charging current for the next cycle, the capacitor can be self-charged by the leakage flux of the pulse transformer and the back electromotive force from the load. Other than that, when the load current pulse reaches the required width, the residual energy of the system can be recovered by switching the inductor to the charging state. Simulation and comparative study show that the improved circuit is suitable for the generation of repetitive current pulses in high-energy systems.
Databáze: OpenAIRE