Investigation of Grid Parameters with the Impact of PV system on Grid connected Variable Load System

Abstract

Renewable energy is gaining importance due to its inexhaustible nature and no GHG emissions. This paper deals with the investigation of voltage and current distortion on the grid side along with frequency distortion with variation in load when PV power is injected to grid. The simulation study is performed for the actual site of PV system at Gaughat pumping station Ujjain (M.P.). The total capacity of the PV system is 550 kW (300 kW+250 kW) with the load variation of 100KW, 2MW and 30 MW on the grid side. The reliability of the typical grid connected system is investigated through this work for the selected site location performed in MATLAB software. The result shows the total harmonic distortion of voltage and current injected to grid along with the frequency deviation when the PV is injected to grid. The transient duration along with the harmonic profile of voltage is investigated in this work.