TY - GEN
T1 - Positive- and negative-sequence control of grid-connected photovoltaic systems under unbalanced voltage conditions
AU - Mirhosseini, Mitra
AU - Pou, Josep
AU - Karanayil, Baburaj
AU - Agelidis, Vassilios G.
PY - 2013
Y1 - 2013
N2 - This paper discusses the control of the positive- and negative-sequence components of a large-scale grid-connected photovoltaic system (GCPS) under unbalanced voltage sag conditions in the grid. Some issues regarding stability and dynamic performance of the system occur when applying PI controllers in the current control loops. The reason is the delay that the filtering method imposes when extracting the current/voltage sequences. Because of such a delay, the dynamic response of the system becomes slower compared with the case when no filtering technique is needed. Furthermore, there is a strong restriction on choosing suitable parameters for the current/voltage loop controllers without compromising system stability. All these issues are discussed in this paper on a 1-MVA GCPV system using MATLAB/Simulink software.
AB - This paper discusses the control of the positive- and negative-sequence components of a large-scale grid-connected photovoltaic system (GCPS) under unbalanced voltage sag conditions in the grid. Some issues regarding stability and dynamic performance of the system occur when applying PI controllers in the current control loops. The reason is the delay that the filtering method imposes when extracting the current/voltage sequences. Because of such a delay, the dynamic response of the system becomes slower compared with the case when no filtering technique is needed. Furthermore, there is a strong restriction on choosing suitable parameters for the current/voltage loop controllers without compromising system stability. All these issues are discussed in this paper on a 1-MVA GCPV system using MATLAB/Simulink software.
KW - Moving average filter
KW - Photovoltaic system
KW - Power system dynamics
KW - Power system faults
UR - http://www.scopus.com/inward/record.url?scp=84894478516&partnerID=8YFLogxK
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U2 - 10.1109/aupec.2013.6725406
DO - 10.1109/aupec.2013.6725406
M3 - Conference contribution
AN - SCOPUS:84894478516
SN - 9781862959132
T3 - 2013 Australasian Universities Power Engineering Conference, AUPEC 2013
BT - 2013 Australasian Universities Power Engineering Conference, AUPEC 2013
PB - IEEE Computer Society
T2 - 2013 Australasian Universities Power Engineering Conference, AUPEC 2013
Y2 - 29 September 2013 through 3 October 2013
ER -
