TY - JOUR
T1 - A Virtual Impedance-Based Active Damping Control Strategy for Triple Active Bridge Converter
AU - Yu, Haoyuan
AU - Zhang, Hanwen
AU - Zhang, Qi
AU - Wang, Yanbo
AU - Qin, Zian
AU - Chen, Zhe
AU - Bauer, Pavol
PY - 2024/11/30
Y1 - 2024/11/30
N2 - Multiport dc-dc converters have been intensively concerned and studied in power electronics-based systems. However, the instability issue and its suppression method are rarely discussed. This article investigates the stability of the triple active bridge (TAB) converter with two constant power loads by impedance-based method, where the output impedance of the TAB converter is derived by the extra element theorem. Then, a virtual impedance-based active damping (AD) control is proposed, where the virtual impedance has four different positions at the output capacitor of the dc port. The effect of the proposed AD control on output impedance and system dynamic response is analyzed. Meanwhile, the range of the virtual impedance is specified. Simulation is performed in PLECS and experimental tests are conducted on a scale-down TAB prototype to verify the effectiveness of the proposed AD control.
AB - Multiport dc-dc converters have been intensively concerned and studied in power electronics-based systems. However, the instability issue and its suppression method are rarely discussed. This article investigates the stability of the triple active bridge (TAB) converter with two constant power loads by impedance-based method, where the output impedance of the TAB converter is derived by the extra element theorem. Then, a virtual impedance-based active damping (AD) control is proposed, where the virtual impedance has four different positions at the output capacitor of the dc port. The effect of the proposed AD control on output impedance and system dynamic response is analyzed. Meanwhile, the range of the virtual impedance is specified. Simulation is performed in PLECS and experimental tests are conducted on a scale-down TAB prototype to verify the effectiveness of the proposed AD control.
UR - https://vbn.aau.dk/en/publications/9f0be7f0-3691-42b5-a0a9-a226998e015f
U2 - 10.1109/TIE.2024.3371006
DO - 10.1109/TIE.2024.3371006
M3 - Article
SN - 0278-0046
VL - 71
SP - 14220
EP - 14231
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 11
ER -