TY - GEN
T1 - Development of High-Power Solid-State Switch and High-Precision Capacitor Charging Power Supply for Kicker Modulator System
AU - Kim, Tae Hyun
AU - Son, Seong Ho
AU - Kwon, Chang Hyun
AU - Kim, Hyoung Suk
AU - Yu, Chan Hun
AU - Bae, Jung Soo
AU - Ahn, Suk Ho
AU - Jang, Sung Roc
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This paper describes development of high-power solid-state switch (HPSS) and high precision capacitor charging power supply (CCPS) for kicker modulator system in an accelerator facility. Specifications of a HPSS for the system are 15 kV of withstand voltage and 10 kA of pulsed current (half-sine form, 6 us of base width). The developed HPSS consists of series-connected IGBTs. For the synchronous drive of IGBTs, each gate drive circuit is powered by an on-off pulse generator circuit which includes multiple transformers sharing their primary winding. To achieve fast risetime of gate-emitter voltage, a gate drive circuit with an internal voltage source is proposed. In terms of the CCPS, series-parallel resonant converter is designed with 15 kV, 4 kW, and 1 MHz of its switching frequency. High switching frequency has an advantage for reproducibility of the pulsed current by minimizing quantity of charge delivered to a load capacitor during one switching period. With the developed HPSS and CCPS, a kicker modulator system is implemented. Finally, the developed system achieved 10 kA of pulsed current from 12 kV of charging voltage with 10 Hz of repetition ratio.
AB - This paper describes development of high-power solid-state switch (HPSS) and high precision capacitor charging power supply (CCPS) for kicker modulator system in an accelerator facility. Specifications of a HPSS for the system are 15 kV of withstand voltage and 10 kA of pulsed current (half-sine form, 6 us of base width). The developed HPSS consists of series-connected IGBTs. For the synchronous drive of IGBTs, each gate drive circuit is powered by an on-off pulse generator circuit which includes multiple transformers sharing their primary winding. To achieve fast risetime of gate-emitter voltage, a gate drive circuit with an internal voltage source is proposed. In terms of the CCPS, series-parallel resonant converter is designed with 15 kV, 4 kW, and 1 MHz of its switching frequency. High switching frequency has an advantage for reproducibility of the pulsed current by minimizing quantity of charge delivered to a load capacitor during one switching period. With the developed HPSS and CCPS, a kicker modulator system is implemented. Finally, the developed system achieved 10 kA of pulsed current from 12 kV of charging voltage with 10 Hz of repetition ratio.
KW - accelerator
KW - capacitor charging power supply
KW - High-power solid-state switch
KW - kicker modulator system
UR - http://www.scopus.com/inward/record.url?scp=85179501793&partnerID=8YFLogxK
U2 - 10.1109/IECON51785.2023.10312586
DO - 10.1109/IECON51785.2023.10312586
M3 - Conference contribution
AN - SCOPUS:85179501793
T3 - IECON Proceedings (Industrial Electronics Conference)
BT - IECON 2023 - 49th Annual Conference of the IEEE Industrial Electronics Society
PB - IEEE Computer Society
T2 - 49th Annual Conference of the IEEE Industrial Electronics Society, IECON 2023
Y2 - 16 October 2023 through 19 October 2023
ER -