TY - GEN
T1 - UDE-based robust control for AC/DC converters
AU - Wang, Yeqin
AU - Dong, Yiting
AU - Ren, Beibei
AU - Zhong, Qing Chang
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/12/26
Y1 - 2018/12/26
N2 - In this paper, an uncertainty and disturbance estimator (UDE)-based robust control strategy is developed for AC/DC converters to achieve accurate DC-link voltage regulation. The models of both DC-link voltage dynamics and power delivering are derived firstly. The UDE strategy is introduced into both voltage-loop design and power-loop design to handle the uncertainties (e.g., the effects of model/parametric uncertainties), and external disturbances (e.g., variations of both amplitude and frequency in the grid, or load change). The proposed control strategy simplifies the parameter tuning and algorithm implementation, and offers a very robust disturbance rejection capability without additional synchronization units. Simulation results are provided to show the effectiveness of the proposed strategy.
AB - In this paper, an uncertainty and disturbance estimator (UDE)-based robust control strategy is developed for AC/DC converters to achieve accurate DC-link voltage regulation. The models of both DC-link voltage dynamics and power delivering are derived firstly. The UDE strategy is introduced into both voltage-loop design and power-loop design to handle the uncertainties (e.g., the effects of model/parametric uncertainties), and external disturbances (e.g., variations of both amplitude and frequency in the grid, or load change). The proposed control strategy simplifies the parameter tuning and algorithm implementation, and offers a very robust disturbance rejection capability without additional synchronization units. Simulation results are provided to show the effectiveness of the proposed strategy.
KW - AC/DC converter
KW - DC-link voltage regulation
KW - Robust control
KW - Uncertainty and disturbance estimator (UDE)
UR - http://www.scopus.com/inward/record.url?scp=85061552270&partnerID=8YFLogxK
U2 - 10.1109/IECON.2018.8591819
DO - 10.1109/IECON.2018.8591819
M3 - Conference contribution
AN - SCOPUS:85061552270
T3 - Proceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
SP - 1550
EP - 1555
BT - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018
Y2 - 20 October 2018 through 23 October 2018
ER -