TY - GEN
T1 - Finite-gain-current repetitive controller for synchronverters with harmonic-sharing capabilities
AU - Róldan-Pérez, J.
AU - Prodanovic, M.
AU - Rodriguez-Cabero, A.
AU - Guerrero, Josep M.
AU - Garcia-Cerrada, A.
PY - 2018/5
Y1 - 2018/5
N2 - Power electronics interfaces are commonly used for renewable energy integration in microgrids and their control as synchronverters represents an alternative to typical control configurations. This control technique introduces many advan tages, but several issues need to be properly addressed including power quality and harmonic current sharing. In this paper, a method to deal with the current harmonics distribution in microgrids based on synchronverters is introduced. A Finite-Gain Repetitive Controller (FRC) is added to the control system of a current-controlled synchronverter. It is shown that the use of this alternative controller allows current harmonics to be shared between the Ditributed Generators (DGs) feeding a non-linear load. In addition, it is shown that the FRC represents a robust solution against the frequency variations typically occurring in microgrids. All the harmonic sharing improvements of the control system are tested on a prototype microgrid consisting of two 15 kVA synchronverters and a non-linear load connected via electrical distribution lines.
AB - Power electronics interfaces are commonly used for renewable energy integration in microgrids and their control as synchronverters represents an alternative to typical control configurations. This control technique introduces many advan tages, but several issues need to be properly addressed including power quality and harmonic current sharing. In this paper, a method to deal with the current harmonics distribution in microgrids based on synchronverters is introduced. A Finite-Gain Repetitive Controller (FRC) is added to the control system of a current-controlled synchronverter. It is shown that the use of this alternative controller allows current harmonics to be shared between the Ditributed Generators (DGs) feeding a non-linear load. In addition, it is shown that the FRC represents a robust solution against the frequency variations typically occurring in microgrids. All the harmonic sharing improvements of the control system are tested on a prototype microgrid consisting of two 15 kVA synchronverters and a non-linear load connected via electrical distribution lines.
UR - http://www.scopus.com/inward/record.url?scp=85049260820&partnerID=8YFLogxK
U2 - 10.1109/ICHQP.2018.8378881
DO - 10.1109/ICHQP.2018.8378881
M3 - Article in proceeding
AN - SCOPUS:85049260820
VL - 2018-May
T3 - International Conference on Harmonics and Quality of Power (ICHQP)
SP - 1
EP - 6
BT - Proceedings of the ICHQP 2018 - 18th International Conference on Harmonics and Quality of Power
PB - IEEE
T2 - 18th International Conference on Harmonics and Quality of Power, ICHQP 2018
Y2 - 13 May 2018 through 16 May 2018
ER -