TY - GEN
T1 - Wireless Series-Parallel Capacitor Charger for DC Circuit Breaker Applications
AU - Kheirollahi, Reza
AU - Zhao, Shuyan
AU - Zhang, Hua
AU - Wang, Jun
AU - Lu, Fei
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/1
Y1 - 2021/6/1
N2 - This paper studies the inductive series-parallel (SP) topology as a wireless capacitor charger for DC circuit breakers (DCCBs) including active injection circuits (AICs). The design objectives are achieving fast response time and minimized steady-state power losses. As the capacitor charging time is significant to accelerate the reclosing process in AIC DCCBs, the impacts of the input dc link voltage, the quality factor of the coils, the input-to-output voltage ratio, and the load capacitance parameters on the transient response time of the wireless SP charger are investigated. Also, a new burst mode control strategy is proposed to reduce the steady-state power losses. The developed 12V-100V wireless charger operating at 1MHz switching frequency provides isolation voltage up to 80kV considering 2kV/mm breakdown voltage between coils. Based on the experimental results, the 10μF load capacitor is charged to 80V in 2.37ms and to 90V in 2.9ms.
AB - This paper studies the inductive series-parallel (SP) topology as a wireless capacitor charger for DC circuit breakers (DCCBs) including active injection circuits (AICs). The design objectives are achieving fast response time and minimized steady-state power losses. As the capacitor charging time is significant to accelerate the reclosing process in AIC DCCBs, the impacts of the input dc link voltage, the quality factor of the coils, the input-to-output voltage ratio, and the load capacitance parameters on the transient response time of the wireless SP charger are investigated. Also, a new burst mode control strategy is proposed to reduce the steady-state power losses. The developed 12V-100V wireless charger operating at 1MHz switching frequency provides isolation voltage up to 80kV considering 2kV/mm breakdown voltage between coils. Based on the experimental results, the 10μF load capacitor is charged to 80V in 2.37ms and to 90V in 2.9ms.
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U2 - 10.1109/WoW51332.2021.9462890
DO - 10.1109/WoW51332.2021.9462890
M3 - Conference contribution
AN - SCOPUS:85113683217
T3 - 2021 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2021
BT - 2021 IEEE PELS Workshop on Emerging Technologies
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, WoW 2021
Y2 - 1 June 2021 through 4 June 2021
ER -