TY - GEN
T1 - Current Control System of Hybrid Converter for Suppressing Current Harmonics
AU - Liang, Yang
AU - Liang, Deliang
AU - Jia, Shaofeng
AU - Chu, Shuaijun
AU - Wang, Hao
AU - Liang, Yongtao
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/5/17
Y1 - 2021/5/17
N2 - The driving electric machine of high-power flywheel energy storage system (FESS) has the characteristics of high fundamental frequency and low inductance, which lead to high current harmonic content and increases the loss of FESS. To suppress the current harmonics, a compound control scheme is proposed for an innovative hybrid converter in this paper. The mathematical model of the hybrid converter is analyzed and divided into two parts: main voltage source converter (MVSC) and filtering voltage source converter (FVSC). According to the characteristics of MVSC and FVSC in output power and switching frequency, two different regular sampling strategies are described and applied. On this basis, the exact MVSC model in discrete time-domain is established, and the current controller with complex vector decoupling is designed. Similarly, a current controller with feedback decoupling is designed for FVSC in the continuous time-domain. Both the current controllers have excellent robustness and dynamic response ability. Finally, the proposed control strategy in this paper is verified by simulation results.
AB - The driving electric machine of high-power flywheel energy storage system (FESS) has the characteristics of high fundamental frequency and low inductance, which lead to high current harmonic content and increases the loss of FESS. To suppress the current harmonics, a compound control scheme is proposed for an innovative hybrid converter in this paper. The mathematical model of the hybrid converter is analyzed and divided into two parts: main voltage source converter (MVSC) and filtering voltage source converter (FVSC). According to the characteristics of MVSC and FVSC in output power and switching frequency, two different regular sampling strategies are described and applied. On this basis, the exact MVSC model in discrete time-domain is established, and the current controller with complex vector decoupling is designed. Similarly, a current controller with feedback decoupling is designed for FVSC in the continuous time-domain. Both the current controllers have excellent robustness and dynamic response ability. Finally, the proposed control strategy in this paper is verified by simulation results.
KW - current controller
KW - current harmonic suppression
KW - flywheel energy storage system (FESS)
KW - hybrid voltage source converter (HVSC)
UR - https://www.scopus.com/pages/publications/85112838814
U2 - 10.1109/IEMDC47953.2021.9449587
DO - 10.1109/IEMDC47953.2021.9449587
M3 - 会议稿件
AN - SCOPUS:85112838814
T3 - 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
BT - 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Electric Machines and Drives Conference, IEMDC 2021
Y2 - 17 May 2021 through 20 May 2021
ER -