TY - GEN
T1 - Boundary Control Based Capacitor Voltage Balancing for Two/Three-Level Neutral-Point-Clamped Dual-Active-Bridge Converters
AU - Dai, Lanbo
AU - Wen, Huiqing
AU - Xu, Peichao
AU - Feng, Zhichen
AU - Wang, Guangyu
AU - Wang, Xue
AU - Rodriguez, Jose
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - In a three-level DC-DC converter, capacitor voltage imbalance increases voltageor current stress and affects converter stability. In this paper, a capacitor balancing method based on fast transient boundary control for two/three-level neutral-point-clamped dual-active-bridge converters is proposed. In this method, elliptic and circular boundaries will be used to regulate the dynamic trajectory of the converter in the geometrical domain. Switching the elliptic trajectory can change the capacitor charging and discharging without affecting the output waveform compared to the conventional method. In addition, boundary control can improve the dynamic performance of the converter. The effectiveness of the proposed control is verified by simulation.
AB - In a three-level DC-DC converter, capacitor voltage imbalance increases voltageor current stress and affects converter stability. In this paper, a capacitor balancing method based on fast transient boundary control for two/three-level neutral-point-clamped dual-active-bridge converters is proposed. In this method, elliptic and circular boundaries will be used to regulate the dynamic trajectory of the converter in the geometrical domain. Switching the elliptic trajectory can change the capacitor charging and discharging without affecting the output waveform compared to the conventional method. In addition, boundary control can improve the dynamic performance of the converter. The effectiveness of the proposed control is verified by simulation.
KW - Boundary control
KW - Capacitor voltage balancing control
KW - Dual-active-bridge converters
KW - Natural switching surface
UR - http://www.scopus.com/inward/record.url?scp=85199106827&partnerID=8YFLogxK
U2 - 10.1109/IPEMC-ECCEAsia60879.2024.10567808
DO - 10.1109/IPEMC-ECCEAsia60879.2024.10567808
M3 - Conference Proceeding
AN - SCOPUS:85199106827
T3 - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
SP - 3101
EP - 3106
BT - 2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Y2 - 17 May 2024 through 20 May 2024
ER -