Open AccessPerformance Enhancement of the DPC Control Based on a VGPI Controller Applied to a Grid Connected PV System
Author(s) -
M. Boukhalfa,
Benaissa Amami,
Mohamed Rida Bengourina,
A. Khoudiri,
Mohamed Belaid
Publication year - 2022
Publication title -
engineering, technology and applied science research/engineering, technology and applied science research
Language(s) - English
Resource type - Journals
eISSN - 2241-4487
pISSN - 1792-8036
DOI - 10.48084/etasr.4697
Subject(s) - robustness (evolution) , control theory (sociology) , photovoltaic system , grid , pid controller , matlab , computer science , controller (irrigation) , control engineering , control (management) , engineering , electrical engineering , mathematics , temperature control , agronomy , biochemistry , chemistry , geometry , artificial intelligence , biology , gene , operating system
Even though the PI controller is among the most widespread controllers in photovoltaic (PV) systems, it presents overshoots and undershoots in the tracking trajectory mode. This major disadvantage remains an open problem. In the current paper, a Direct Power Control (DPC) of a three-phase grid-connected PV system based on a Variable Gain PI (VGPI) controller is developed to remove the overshoots and undershoots in the classical PI controller. The proposed control system has been tested in the Matlab/Simulink environment. The simulation results demonstrate the feasibility and robustness of the proposed method in terms of overshoots, undershoots, and current quality.