TY - GEN
T1 - Grid Current Control Based Smooth Transfer Control Method in Distributed Generation
AU - Meng, Xin
AU - Liu, Jinjun
AU - Liu, Zeng
AU - An, Ronghui
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/8/27
Y1 - 2018/8/27
N2 - This paper proposes a smooth transfer control strategy for distributed generation (DG) units between grid-connected (GC) mode and stand-alone (SA) mode. In the GC mode, the DG unit is controlled as a current source. When islanding happens, the DG unit can transfer from current source to voltage source automatically. In the SA mode, the DG unit is based on current droop control. The advantages of this proposed strategy are as follows. Firstly, compared with indirect current control, the reliability of microgrid system can be improved in the SA mode. Secondly, compared with the droop control method, the proposed control strategy can improve the grid current quality and output constant power when the grid voltage has oscillation in the GC mode, and can provide faster dynamic performance. The simulation results are provided to verify the effectiveness of the proposed method.
AB - This paper proposes a smooth transfer control strategy for distributed generation (DG) units between grid-connected (GC) mode and stand-alone (SA) mode. In the GC mode, the DG unit is controlled as a current source. When islanding happens, the DG unit can transfer from current source to voltage source automatically. In the SA mode, the DG unit is based on current droop control. The advantages of this proposed strategy are as follows. Firstly, compared with indirect current control, the reliability of microgrid system can be improved in the SA mode. Secondly, compared with the droop control method, the proposed control strategy can improve the grid current quality and output constant power when the grid voltage has oscillation in the GC mode, and can provide faster dynamic performance. The simulation results are provided to verify the effectiveness of the proposed method.
KW - grid current
KW - grid-connected mode
KW - smooth transfer
KW - stand-alone mode
UR - https://www.scopus.com/pages/publications/85053839925
U2 - 10.1109/PEDG.2018.8447613
DO - 10.1109/PEDG.2018.8447613
M3 - 会议稿件
AN - SCOPUS:85053839925
SN - 9781538667057
T3 - 2018 9th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2018
BT - 2018 9th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2018
Y2 - 25 June 2018 through 28 June 2018
ER -
