Dynamic economic dispatch: Feasible and optimal solutions

Dynamic economic dispatch is an extension of the conventional economic disp atch problem that takes into consideration the limits on the ramp rate of t he generating units. This paper examines the factors that affect the feasib ility and optimality of solutions to this problem. It proposes two new solu tion methods. The first is guaranteed to find a feasible solution even when the load profile is nonmonotonic. The second is an efficient technique for finding the optimal solution. The results obtained with these methods are compared with those obtained using previously published methods.