Modelling, design and control of wind diesel hybrid power system using bond graph

Abstract

This paper illustrates the use of diesel electricity generator set and Dispatch Controller to adapt the number of running engines to a given electrical load that is partly met by wind turbines. Control coordination among the system components is established with a view to regulate the system voltage and frequency while extracting maximum power from wind. This paper utilized the bond graph approach in the modelling of such a wind/diesel hybrid power system for a stand-alone unit in a remote location. This design allows for the addition of wind energy inputs in conjunction with the diesel generators for fuel saving.