Research Information System
International Journal of Renewable Energy Research, vol.15, no.2, pp.343-352, 2025 (ESCI)
In this paper, a controller design has been implemented for PV based Microgrid (PVMG) connected to the grid. The PV system under consideration is linked to the DC bus via a boost converter in order to obtain maximum power, and the DC line is tied up to the AC line, interconnected to the grid through the PCC while supplying the loads, over an inverter. It has also been operating in either island or grid-integrated mode. Although converter topologies remain unchanged across operating modes, the control structures must be adapted accordingly. Additionally, fast and reliable control architecture should be realized to ensure a seamless transition between operating modes. To achieve constant DC with maximum power from the PV, the Perturb&Observe (P&O) algorithm has been used. To convert DC power to AC, the inverter has been controlled with PI based control algorithm. Proposed control structures have been verified based on the simulation performed under Matlab/Simulink.