TY - GEN
T1 - Seamless Transitions Between Grid-Following and Grid-Forming Control: A Novel Switching Method
AU - Gao, Xian
AU - Zhou, Dao
AU - Anvari-Moghaddam, Amjad
AU - Blaabjerg, Frede
PY - 2023
Y1 - 2023
N2 - In order to adapt to the complex working environments of the power grid, the grid-connected inverters need to seamlessly change the control strategy according to the different conditions. However, the transition may pose some sudden changes on the references of the inner control loops as well as the outer control loops like power loop or voltage loop, which results in distorted voltages and currents or even the risk of ensuring a safe operation. In order to solve this problem, this paper proposes a smooth switching method between grid-following and grid-forming control in grid-connected mode. Time-domain simulations are done in Matlab/Simulink to verify the effectiveness of the proposed control method, showing it works appropriately. Finally, an experimental prototype is established to verify the practical effectiveness of the proposed method.
AB - In order to adapt to the complex working environments of the power grid, the grid-connected inverters need to seamlessly change the control strategy according to the different conditions. However, the transition may pose some sudden changes on the references of the inner control loops as well as the outer control loops like power loop or voltage loop, which results in distorted voltages and currents or even the risk of ensuring a safe operation. In order to solve this problem, this paper proposes a smooth switching method between grid-following and grid-forming control in grid-connected mode. Time-domain simulations are done in Matlab/Simulink to verify the effectiveness of the proposed control method, showing it works appropriately. Finally, an experimental prototype is established to verify the practical effectiveness of the proposed method.
KW - Grid-connected inverters
KW - smooth switching method
KW - grid-following control
KW - grid-forming control
UR - http://www.scopus.com/inward/record.url?scp=85170641992&partnerID=8YFLogxK
U2 - 10.23919/ICPE2023-ECCEAsia54778.2023.10213821
DO - 10.23919/ICPE2023-ECCEAsia54778.2023.10213821
M3 - Article in proceeding
T3 - International Conference on Power Electronics
SP - 1154
EP - 1160
BT - ICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia
PB - IEEE
T2 - 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
Y2 - 22 May 2023 through 25 May 2023
ER -