Wind-PV based microgrid and its synchronization with utility grid

In this paper, a renewable energy based wind-PV microgrid is investigated for seamless transfer between the grid connected and isolated modes according to the grid availability. The VSC (Voltage Source Converter) based voltage and current controls are used to provide smoothness in both the operations. A battery bank is connected at the DC bus of VSC for load leveling during low power generations or peak load conditions. The control algorithms for VSC are capable of providing power balance and power quality solutions to the microgrid. A MATLAB/Simulink model is developed for the three phase wind-solar PV based microgrid. Detailed results are presented during wind variations and during synchronization and de-synchronization processes.