Performance of Grid Connected PV System with Variable Load System

 

The stability of grid is important to analyze due to integration of solar PV system. This paper deals with the investigation and analysis of performance parameters needed to be eliminated with the application of controlled devices irrespective of that penetration of solar PV on grid restrict up to a critical level. The stability of grid may be affected due to non-reliability of PV system. This study is performed for the actual site of PV system at Gaughat pumping station Ujjain (M.P.) with the total capacity of the PV system is 550 kW (300 kW+250 kW) for the variable load of 100 KW, 2 MW and 30 MW on the grid side. The reliability of the typical grid connected system is analyzed, investigated and validated through simulation work. The parameters evaluated are voltage and current injected to grid, frequency deviation; active and reactive power drawn and harmonic investigation. The simulation and experimental results are compared and presented. The results shows that the standard deviation in harmonic voltage, current and others parameters are nearly same for both simulation and experimental results.