TY - GEN
T1 - Adaptive synchronization of grid-connected three-phase inverters by using virtual oscillator control
AU - Li, Mingshen
AU - Gui, Yonghao
AU - Vasquez, Juan C.
AU - Guerrero, Josep M.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/18
Y1 - 2018/4/18
N2 - This paper presents an adaptive synchronization for current-controlled grid-connected inverter based on a timedomain virtual oscillator controller (VOC). Inspired by the phenomenon of dynamics of adaptive oscillator under the perturbation effect. Firstly, the fast learning rule of the oscillator frequency is derived in order to make the oscillator evolve to the grid voltage. Thus realizing a phase-locking behavior, but without requiring the use of a dedicated phase-locked loop (PLL). Then, the unit orthogonal components are obtained to generate the current reference, and a current loop is designed by using a PR controller in the αβ frame. Experimental results were obtained with comparison to PI current controller, showing the salient performances of the proposed method in front of grid frequency variations, voltage sags and swells.
AB - This paper presents an adaptive synchronization for current-controlled grid-connected inverter based on a timedomain virtual oscillator controller (VOC). Inspired by the phenomenon of dynamics of adaptive oscillator under the perturbation effect. Firstly, the fast learning rule of the oscillator frequency is derived in order to make the oscillator evolve to the grid voltage. Thus realizing a phase-locking behavior, but without requiring the use of a dedicated phase-locked loop (PLL). Then, the unit orthogonal components are obtained to generate the current reference, and a current loop is designed by using a PR controller in the αβ frame. Experimental results were obtained with comparison to PI current controller, showing the salient performances of the proposed method in front of grid frequency variations, voltage sags and swells.
KW - Adaptive synchronization
KW - Dead-zone oscillator
KW - Gird-connected inverter
KW - Nonlinear control
UR - http://www.scopus.com/inward/record.url?scp=85046938585&partnerID=8YFLogxK
U2 - 10.1109/APEC.2018.8341158
DO - 10.1109/APEC.2018.8341158
M3 - Conference contribution
AN - SCOPUS:85046938585
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1130
EP - 1135
BT - APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Y2 - 4 March 2018 through 8 March 2018
ER -