TY - JOUR
T1 - 5L full-scale converter with a dc-link flying-capacitor auxiliary bridge leg for large direct-drive wind turbines
AU - Hang, Wang
AU - Xiang-Jun, Zeng
AU - Mei-Mei, Zhang
AU - Ying-Ying, He
AU - Xiao, Zhang
AU - Xu, Yang
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2016.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - A novel five-level (5L) full-scale converter is proposed for large direct-drive wind turbines. In this scheme, a 5LVienna rectifier is used as a robust generator-side converter and a 5L neutral-point-clamped inverter as a grid-side converter, a flying-capacitor auxiliary bridge leg is proposed to maintain the voltage balance of the dc capacitors. This study first discusses the neutral-point balancing method based on the flying-capacitor auxiliary bridge leg and modulation. Furthermore, it presents the control strategies for the proposed 5L converter. Finally, simulation and small-scale experiments are carried out to verify the analysis.
AB - A novel five-level (5L) full-scale converter is proposed for large direct-drive wind turbines. In this scheme, a 5LVienna rectifier is used as a robust generator-side converter and a 5L neutral-point-clamped inverter as a grid-side converter, a flying-capacitor auxiliary bridge leg is proposed to maintain the voltage balance of the dc capacitors. This study first discusses the neutral-point balancing method based on the flying-capacitor auxiliary bridge leg and modulation. Furthermore, it presents the control strategies for the proposed 5L converter. Finally, simulation and small-scale experiments are carried out to verify the analysis.
UR - https://www.scopus.com/pages/publications/85022056009
U2 - 10.1049/iet-epa.2016.0251
DO - 10.1049/iet-epa.2016.0251
M3 - 文章
AN - SCOPUS:85022056009
SN - 1751-8660
VL - 11
SP - 1001
EP - 1012
JO - IET Electric Power Applications
JF - IET Electric Power Applications
IS - 6
ER -