Abstract

This paper represent interconnection of 16Megawatt [MW] Mega-Solar with a dedicated control system toa grid. The Photovoltaic (PV) are connected to DC/DCbuck-boost converter with Perturb and Observe (P&O)Maximum Power Point Tracking(MPPT) controller. Forcontrolling the DC/AC inverter, reference controller(abc-controller) and hysteresis current control are used. Whenamount of the connected Mega-Solar increased, as a result of thesimulation, it become obvious that the reactive power of maingrid (weak power system) is consumed and the voltages rise atthe connected bus. In this study, first we controlled the voltageand current with dedicated control system and get maximumpower from Mega-Solar. Second, we interconnect ourMega-Solar site to IEEE 30 Bus Test System (Weak powersystem) as main grid and by decomposition control strategysolved the problem of reactive power shortage. In this paper, allsimulation designed in MATLAB/SIMULINK. For simulationof an actual power system, for the first time, a simulation modelof the IEEE 30 Bus Test System on the MATLAB/SIMULINKenvironment its developed and its effectiveness is verifiedthrough various simulation results.