Quokka Swarm Driven PI Controller for High-Performance PV Microgrid with Interleaved Boost Converter

Over last decade, energy utilization based on
Renewable Energy Source (RES) has grown significantly by
more than 10% each year. In addition to that, aiming at better
overall grid efficiency and reliability, this study presents a new
decentralized output-constrained control algorithm for Direct
Current (DC) Micro Grids (MGs). It involves the study of PV
integration in MG. The low voltage coming from the solar
source is elevated by DC-DC converters. This paper presents an
Interleaved Boost Converter (IBC) for raising the energy from
the PV modules when they are in need of high voltage for an
efficient DC microgrid operation. The suggested converter
attaches PV modules as separate sources, provides high
efficiency and a significant voltage conversion ratio with the
minimal use of the components. In order to improve power
quality and achieve higher system efficiency, the control
strategy needs to be of great importance. QSO-optimized PI
controllers are utilized to provide stable and dynamic power
even during irradiance fluctuations. The proposed model for
upgrading PV microgrid systems is implemented in
MATLAB/Simulink and simulation results confirm that IBC
converter reach an efficiency of 94.17% with a higher gain than
the traditional converters, simplified control mechanisms, and
reduced energy losses with THD of 0.62%.
Keyword—Microgrid, PV system, IBC, Quokka Swarm
optimized PI controller, MATLAB.