Dynamic Economic Dispatch with Generator´s Feasible Operation Region

Dynamic economic load dispatch is an extension of the conventional static economic load dispatch which takes into account the ramp rate of generating units. This paper proposes a dynamic economic load dispatch method based on the feasible operation region approach. The region defines how generating units may change their outputs in order to match a demand profile. It is defined by physical and ramp rate constraints of generating units and supply-demand balance constraint. The proposed method has been successfully tested on a 3 generator system supplying a typical afternoon demand profile.