A fuzzy control scheme for an isolated domestic application using fuel cell system

Fuel-cell-based power generation is a promising DG technology, gaining popularity in residential applications due to its cleanliness, portability and suitability for electricity and heat generation. It also features as a great choice for remote isolated residences for covering the water needs. This paper presents an experimental study of a Proton Exchange Membrane (PEM) type Fuel Cell System (FCS), combined with a battery bank supplying some domestic loads. The system could be easily adjusted for grid-connected operation via the dc/ac converter that is employed. A fuzzy logic controller is implemented via a Digital Signal Processor (DSP) and regulates the output of the converter in real time. The controller shows good performance under severe load step changes and rapidly restores the balance between supply and demand at steady state.