Dynamic Study of Grid Connected Hybrid Wind PV System in ETAP

Abstract

The objective of proposed work is to analyze system load flow study and transient study of 48 bus systems. Renewable source of energy has been proven to be best source of compensating future demand of electricity. In this paper, a hybrid wind PV solar system is designed to feed power to grid. A hybrid doubly fed induction generator (DFIG) based wind turbine and polycrystalline silicon based photovoltaic (PV) module are taken for study. The proposed system is simulated in Electrical Transient Analysis Program (ETAP). Power flows are analyzed for different lengths of cable, for different wind speed and irradiance level. Hybridizing the two or more energy is a new concept and much analysis has been done on the topic in different power system analysis software. It was concluded from the ETAP analysis that hybrid DFIG based wind and solar energy can effectively feed power to grid with a lesser amount of losses. The PV module output for different irradiance was also studied. The transient behavior of system during 3 phase fault and single line to ground fault was studied and the graph indicate the system harm is much more during 3 phase fault. Hybrid wind PV system can compensate demand with additional stability and reliability. Because of additional advantage, this hybrid wind PV system will soon replace the future dependence of generating electricity from coal based plant. The analysis is useful before commissioning of hybrid system in site to study the complete behavior of system under different conditions.