TY - GEN
T1 - Symmetric Harmonic Virtual Admittance Stabilization Method for Harmonic Compensation Oscillation in SAPF System
AU - Zhang, Zhilong
AU - Yi, Hao
AU - Li, Yuguo
AU - Jiang, Xin
AU - Wang, Zhenxiong
AU - Zhuo, Fang
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Under the weak grid condition, SAPF, grid impedance and nonlinear load will form a complicated multi source-load interaction system. Due to the intricate interactions within the system, harmonic compensation oscillation phenomena will occur in the harmonic frequency range and diminish SAPF's harmonic compensation effect. In previous research, however, the frequency coupling effect of the nonlinear load in the system are typically overlooked. Consequently, based on the conventional load current detection SAPF system, this paper incorporates the dynamic characteristics of nonlinear load into the system and obtains a more precise source-load interaction model. On the basis of the developed model, the stability of the system is analyzed. In addition, based on the system's characteristics, this paper improves the stabilization method developed by previous researchers and proposes the symmetrical harmonic virtual admittance method to achieve system stabilization more effectively. Finally, simulations have been performed to verify the accuracy of the model and the effectiveness of the proposed stabilizing strategy.
AB - Under the weak grid condition, SAPF, grid impedance and nonlinear load will form a complicated multi source-load interaction system. Due to the intricate interactions within the system, harmonic compensation oscillation phenomena will occur in the harmonic frequency range and diminish SAPF's harmonic compensation effect. In previous research, however, the frequency coupling effect of the nonlinear load in the system are typically overlooked. Consequently, based on the conventional load current detection SAPF system, this paper incorporates the dynamic characteristics of nonlinear load into the system and obtains a more precise source-load interaction model. On the basis of the developed model, the stability of the system is analyzed. In addition, based on the system's characteristics, this paper improves the stabilization method developed by previous researchers and proposes the symmetrical harmonic virtual admittance method to achieve system stabilization more effectively. Finally, simulations have been performed to verify the accuracy of the model and the effectiveness of the proposed stabilizing strategy.
KW - SAPF system
KW - harmonic compensation oscillation
KW - stability analysis
KW - symmetrical harmonic virtual admittance
UR - https://www.scopus.com/pages/publications/85170356715
U2 - 10.1109/PEDG56097.2023.10215181
DO - 10.1109/PEDG56097.2023.10215181
M3 - 会议稿件
AN - SCOPUS:85170356715
T3 - PEDG 2023 - 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems
SP - 634
EP - 638
BT - PEDG 2023 - 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2023
Y2 - 9 June 2023 through 12 June 2023
ER -
