A control strategy for integration of a PEMFCS to a distribution grid

In order to integrate a proton exchange membrane type (PEM) fuel cell system (FCS) to a distribution system, this paper proposes a local controller for providing primary frequency control and local bus voltage support. The FCS has been designed to operate in the distribution system either this is connected to the mean voltage side or it is disconnected and operated in stand-alone mode. The FCS is connected to a weak distribution grid to study the system performance under local disturbances. The response of the system is recorded under a severe step load change using MATLAB software and proves a good performance of the system.