Control of Grid Integrated PV Based Microgrid for Seamless Operation

Burak ONAR, Sevki DEMIRBAS

Abstract


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 connected 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 do not change based on the operating modes, control structures should be changed based on operating modes. 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.


Keywords


microgrid; smartgrid; seamless transition; PV; grid integrated

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DOI (PDF): https://doi.org/10.20508/ijrer.v15i2.16305.g9056

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