80 kW hybrid solar inverter for standalone and grid connected applications

The aim of this work is the development of a solar photovoltaic generation system based on a standard power electronics cell for microgrid applications. The proposed system is capable of providing security of supply by delivering uninterrupted power to critical loads in standalone operation and transitioning seamlessly between stand alone and grid connected mode. To mitigate the effect of variability of the generation and load demand a state of the art 20kWh lithium-ion battery is used to balance the power flow in the system. This paper presents description of the hardware, proposed controls strategies and simulation models of the system.