TY - GEN
T1 - Distributed Fixed-Time Secondary Control for DC Microgrid with Less Information Exchange
AU - Chai, Junwei
AU - Lyu, Xue
AU - Wang, Minghao
AU - Xu, Zhao
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/12/20
Y1 - 2023/12/20
N2 - DC microgrids are a feasible grid system to host multiple distributed generators (DGs). In terms of the control and coordination of hosted DGs, it is required that the integrated secondary control scheme of DC microgrids can achieve fast dynamics. To fulfill this target, a novel fixed-time secondary control scheme is put forward in this paper to achieve a concurrent DC bus voltage regulation and current sharing among DGs within a fixed time. Notably, the proposed method only needs to transmit one variable to the neighboring DGs, which can considerably reduce the communication traffic compared to the existing latest method. Moreover, this control scheme need not sample the DC bus voltage, benefiting an easier implementation and improved system reliability. The stability of the proposed scheme is theoretically proved. The results of studied cases are provided to demonstrate the effectiveness of the proposed strategy.
AB - DC microgrids are a feasible grid system to host multiple distributed generators (DGs). In terms of the control and coordination of hosted DGs, it is required that the integrated secondary control scheme of DC microgrids can achieve fast dynamics. To fulfill this target, a novel fixed-time secondary control scheme is put forward in this paper to achieve a concurrent DC bus voltage regulation and current sharing among DGs within a fixed time. Notably, the proposed method only needs to transmit one variable to the neighboring DGs, which can considerably reduce the communication traffic compared to the existing latest method. Moreover, this control scheme need not sample the DC bus voltage, benefiting an easier implementation and improved system reliability. The stability of the proposed scheme is theoretically proved. The results of studied cases are provided to demonstrate the effectiveness of the proposed strategy.
KW - Current sharing
KW - DC microgrid
KW - distributed secondary control
KW - fixed-time stability
UR - http://www.scopus.com/inward/record.url?scp=85182765823&partnerID=8YFLogxK
U2 - 10.1109/ICPRE59655.2023.10353650
DO - 10.1109/ICPRE59655.2023.10353650
M3 - Conference article published in proceeding or book
AN - SCOPUS:85182765823
T3 - 2023 8th International Conference on Power and Renewable Energy, ICPRE 2023
SP - 652
EP - 657
BT - 2023 8th International Conference on Power and Renewable Energy, ICPRE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Power and Renewable Energy, ICPRE 2023
Y2 - 22 September 2023 through 25 September 2023
ER -