Unit Commitment with Economic Dispatch

Authors:  M.S.Krishnarayalu

Abstract

Economic Dispatch (ED) in power systems is very important as it saves lot of money. There are two basic methods available. One is classical method where all units are committed and consumption of fuel is optimized by an optimization method. Second one is Unit Commitment (UC) method. In UC, units are committed based on their efficiency order and on load demand with most efficient unit committed first. Now a method called Unit Commitment with Economic Dispatch (UCED) is proposed combining these two methods. The efficacy of this new method is illustrated via a three unit thermal plant system.

Index Terms

 Fuel cost, Optimization, Economic Dispatch, Unit Commitment

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Unit Commitment with Economic Dispatch