TY - GEN
T1 - A Novel Hybrid Modulation Strategy of LCC Resonant Converter with Capacitive Load
AU - Qin, Mengjie
AU - Zhang, Fan
AU - Ye, Aizhen
AU - Huang, Lijie
AU - Tian, Qin
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/5/28
Y1 - 2021/5/28
N2 - With LCC resonant circuit as the topological high- voltage charging power supply, the commonly used modulation methods are pulse-frequency modulation (PSM) and phase shift modulation (PFM). Aiming at the problem of wide frequency modulation range, low utilization of magnetic parts when PFM, and narrow soft switching range when PSM, a functional relationship between output current and switching frequency is established, and a PSM-PFM hybrid modulation strategy is proposed based on the output current characteristics. This control strategy uses PSM at light load to increase the charging speed of the capacitor without increasing the switching current stress, expand the soft switching range, and use PFM at heavy load to narrow the frequency modulation range. The feasibility of the control strategy was verified by building a simulation and experiment platform. The charging speed is doubled, and the frequency range is reduced to a quarter of the original.
AB - With LCC resonant circuit as the topological high- voltage charging power supply, the commonly used modulation methods are pulse-frequency modulation (PSM) and phase shift modulation (PFM). Aiming at the problem of wide frequency modulation range, low utilization of magnetic parts when PFM, and narrow soft switching range when PSM, a functional relationship between output current and switching frequency is established, and a PSM-PFM hybrid modulation strategy is proposed based on the output current characteristics. This control strategy uses PSM at light load to increase the charging speed of the capacitor without increasing the switching current stress, expand the soft switching range, and use PFM at heavy load to narrow the frequency modulation range. The feasibility of the control strategy was verified by building a simulation and experiment platform. The charging speed is doubled, and the frequency range is reduced to a quarter of the original.
KW - Charging speed
KW - PSM-PFM
KW - soft switching range
UR - https://www.scopus.com/pages/publications/85114206457
U2 - 10.1109/CIEEC50170.2021.9510758
DO - 10.1109/CIEEC50170.2021.9510758
M3 - 会议稿件
AN - SCOPUS:85114206457
T3 - Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021
BT - Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE China International Electrical and Energy Conference, CIEEC 2021
Y2 - 28 May 2021 through 30 May 2021
ER -