A new economic dispatch algorithm considering any higher order generation cost functions

In this paper, a new Economic Dispatch (ED) algorithm for Unit Commitment ( UC) is proposed to improve both the accuracy of the final solution and the calculation speed of ED. By using the inverse incremental cost functions, E D can be transformed into a simple optimization problem associated with an nth order polynomial equation. The proposed method remarkably reduces the c omputation time with adaptability to any higher order generation cost funct ions. The proposed method is tested with sample systems,which shows that th e proposed algorithm yields more accurate and economical generation schedul ing results with a high computation speed. (C) 2000 Elsevier Science Ltd. A ll rights reserved.