Open AccessLow-voltage ride-through for a three-phase four-leg photovoltaic system using SRFPI control strategy
Author(s) -
Haval Sardar Kamil,
Dalila Mat Said,
Mohd Wazir Mustafa,
Mohammad Reza Miveh,
Nasarudin Ahmad
Publication year - 2019
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v9i3.pp1524-1530
Subject(s) - low voltage ride through , photovoltaic system , grid connected photovoltaic power system , computer science , grid , inverter , controller (irrigation) , maximum power point tracking , fault (geology) , grid connection , power (physics) , three phase , power electronics , electrical engineering , low voltage , automotive engineering , voltage , engineering , mathematics , physics , agronomy , geometry , quantum mechanics , seismology , geology , biology
With the innovative progresses in power electronics in recent years, photovoltaic (PV) systems emerged as one of the promising sources for electricity generation at the distribution network. Nonetheless, connection of PV power plants to the utility grid under abnormal conditions has become a significant issue and novel grid codes should be recommend. The low-voltage ride-through (LVRT) capability is one of the challenges faced by the integration of PV power stations into electrical grid under abnormal conditions. This work firstly provides a discussion on recent control schemes for PV power plants to enhance the LVRT capabilities. Next, a control scheme for a three-phase four-leg grid-connected PV inverter under unbalanced grid fault conditions using synchronous reference frame proportional integral (SRFPI) controller is proposed. Simulation studies are performed to investigate the influence of the control strategy on the PV inverter.