TY - GEN
T1 - Analysis and Comparison of Various Dual Loop Active Damping Methods for LCL-Type Grid-Connected Converters
AU - Zhang, Jiansong
AU - Yang, Xu
AU - Zhou, Hongwei
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - The capacitor or the PCC voltage is widely applied to the inner active damping loop since no extra current sensors are required. Besides, both the converter and the grid side current can be utilized for the outer current control loop. Few papers compare their damping performance with different combinations. This paper proposes a generic model with various dual loop active damping strategies for comparison and analysis. It is found out that the performance using the capacitor or the PCC voltage for the inner active damping loop are identical by adjusting their feedback coefficients. The GCFPVF control preserve the excellent damping performance compared with other combinations. Furthermore, a new active damping method is proposed to extend the damping region with the inner capacitor voltage loop and the outer converter side current loop. Finally, experiments are conducted to verify the theoretical analysis.
AB - The capacitor or the PCC voltage is widely applied to the inner active damping loop since no extra current sensors are required. Besides, both the converter and the grid side current can be utilized for the outer current control loop. Few papers compare their damping performance with different combinations. This paper proposes a generic model with various dual loop active damping strategies for comparison and analysis. It is found out that the performance using the capacitor or the PCC voltage for the inner active damping loop are identical by adjusting their feedback coefficients. The GCFPVF control preserve the excellent damping performance compared with other combinations. Furthermore, a new active damping method is proposed to extend the damping region with the inner capacitor voltage loop and the outer converter side current loop. Finally, experiments are conducted to verify the theoretical analysis.
KW - Dual loop active damping methods
KW - Grid-connected converters
KW - LCL
UR - https://www.scopus.com/pages/publications/85071945611
U2 - 10.1109/PEDG.2019.8807774
DO - 10.1109/PEDG.2019.8807774
M3 - 会议稿件
AN - SCOPUS:85071945611
T3 - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
SP - 739
EP - 744
BT - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019
Y2 - 3 June 2019 through 6 June 2019
ER -