Esign, Simulation and Implementation of Mppt Controlled Buck-Boost Converter Extracting Power From Solar Panel for Microgrid Applications

The work is dedicated to implementation of DC-DC converter for PV system in medium power Microgrid applications. Due to availability of flexible power management strategies along with effective cost, micro-grids are gaining immense popularity in present days. DC Microgrid mainly consists of PV system and battery system. Battery system plays very important role in improving dynamic response of the Microgrid. While designing power modulators for DC storage system, efficiency is a major concern. This paper proposes a method for modeling, simulation and hardware implementation of PV system and maximum power point tracking using Buck-Boost converter. Since PV cells have poor efficiency it is necessary to operate them at maximum power point using incremental conductance. The converter topology used here is Modified Buck-Boost Converter. All the simulations were carried out on MATLAB using variable parameters and the hardware results were verified on the PV arrays along with PV panel simulator.