Power management of hybrid fuel cell and microturbine based DG system in utility connected mode

The distributed generation (DG) with fuel cell and microturbine generation (MTG) system is an emerging approach to provide a quality power in the distribution network though the renewable and nonrenewable energy resources. Thus, interconnection of fuel cell MTG based DG system to the distribution network has to withstand several grid issues. This paper presents the hybrid operation of fuel cell and MTG based DG system in utility interconnected mode. The hybrid DG system includes a solid oxide fuel cell (SOFC) and MTG system with DC link based air and fuel flow control strategy to limit their output power. The hybrid SOFC and MTG system are integrated at common at common DC link and is delivered to grid through the power electronics interfacing. The model of hybrid DG system with SOFC and MTG system is presented using Matlab/Simulink environment and it performance has been studied through the simulation.