This paper first explains the conventional solution and analyzes combined cycle cost curves. Since the cost curves are not convex and the incremental cost curves are not monotonously increasing, the equal incremental criterion can not be applied.
This paper compares several existing methods which can solve the ED problem involving combined cycleunits. They are Complete Enumeration, Merit Order Loading and Genetic Algorithm. The differences from originally published methods are presented. A method to mutation prediction of RGA is shown in detail which does reduce computing time tremendously.
Finally this paper proposes a Hybrid Technique com- bining Lambda Iteration with Complete Enumeration to solve ED with CC Units. Both single demand and con- tinuous demands are tested by the four methods. CPU time is compared. Advantages and disadvantages of each method are compared.