Open AccessDesign and Control of an Autonomous PV System with Battery Storage and Single Phase Inverter using the Smart Control Followed by PI Correctors
Author(s) -
Essaid Ait El maati,
Abdellah Boulal,
Abdelhadi Radouane,
Azeddine Mouhsen
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.k2061.0981119
Subject(s) - photovoltaic system , battery (electricity) , inverter , microgrid , maximum power point tracking , voltage , control theory (sociology) , converters , boost converter , power (physics) , state of charge , energy storage , engineering , computer science , automotive engineering , electrical engineering , control (management) , physics , quantum mechanics , artificial intelligence
The autonomous photovoltaic system requires a battery for storage of energy, for consumption during the night and days with low irradiation. This article presents the design and control of the autonomous PV system with a storage battery and a single-phase inverter. The SEPIC converter is used to adapt the output voltage of the PV panel to the battery charging voltage, this converter is controlled by the intelligent MPPT control followed by PI controllers to extract the maximum power of the GPV and manage the charge and discharging loop the battery. Subsequently, a BOOST converter has been associated with the system to adapt the output voltage of the battery to the load. The modelling of the state space is done to determine the transfer function of the converters (SEPIC and BOOST). The single-phase inverter is used to supply alternative loads. The values of the PI correctors (Kp and Ki) are obtained using the method of Ziegler Nichols. Finally, we simulated and analysed the performance of a 250W stand-alone photovoltaic power system on MATLABSimulink.