TY - GEN
T1 - Analysis of negative influence of harmonic circulation between parallel STATCOMs and suppression method
AU - Chen, Jikai
AU - Wang, Peng
AU - Hu, Yang
AU - Shao, Hui
AU - Li, Guoqing
AU - Wang, Xiaozhe
AU - Qin, Jiangchao
N1 - Funding Information:
This work is supported by Jilin Scientific and Technological Development Program.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - In this paper, the cascaded H-bridge STATCOM parallel system is taken as the research object to analyze the instability of STATCOM system caused by the interaction between parallel STATCOMs in wind farm afflux station. Firstly, the inherent relation of harmonic circulation and low-frequency disturbance will be revealed by CPS-PWM theory. Then, the output impedance and transfer function of STATCOM give an insight into the interaction between STATCOMs and low-frequency resonance, and the virtual impedance method is proposed to shape the resonant peak. Finally, the correctness of theoretical analysis is verified by real-time simulation.
AB - In this paper, the cascaded H-bridge STATCOM parallel system is taken as the research object to analyze the instability of STATCOM system caused by the interaction between parallel STATCOMs in wind farm afflux station. Firstly, the inherent relation of harmonic circulation and low-frequency disturbance will be revealed by CPS-PWM theory. Then, the output impedance and transfer function of STATCOM give an insight into the interaction between STATCOMs and low-frequency resonance, and the virtual impedance method is proposed to shape the resonant peak. Finally, the correctness of theoretical analysis is verified by real-time simulation.
KW - Cascaded H-bridge STATCOM
KW - Harmonic current
KW - Low-frequency disturbance
KW - Virtual impedance
UR - http://www.scopus.com/inward/record.url?scp=85071919484&partnerID=8YFLogxK
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U2 - 10.1109/PEDG.2019.8807514
DO - 10.1109/PEDG.2019.8807514
M3 - Conference contribution
AN - SCOPUS:85071919484
T3 - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
SP - 751
EP - 755
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 -