Clonal Selection Algorithm for Dynamic Economic Dispatch with Nonsmooth Cost Functions

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Author(s) 
U. K. Rout, R. K. Swain, A. K. Barisal, R. C. Prusty 

KEYWORDS 
Clonal Selection Algorithm, Dynamic Economic load dispatch, Power generation operation and Control, Ramp rate limits


ABSTRACT 
This paper presents clonal selection algorithm to solve the Dynamic Economic Dispatch Problem (DEDP) of generating units considering valve point loading effects. It determines the optimal operation of units with predicted load demand over a certain period of time with an objective to minimize total production cost while the system is operating with ramp rate limits. This paper presents DED based on clonal selection technique for determination of the global or near global optimum dispatch solution. In the present case, load balance constraints, operating limits, valve point loading, ramp constraints and network loss coefficient are incorporated. Five unit test systems with nonlinear characteristics of the generators are considered to illustrate the effectiveness of the proposed method. The feasibility of the proposed method is demonstrated and compared to those reported in the literature. The results are promising and show the effectiveness of the proposed method.


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