Optimization the Combined Heat and Power Economic Dispatch problem using Harmony Search Algorithm

Abstract

Recently, combined heat and power units, known as cogeneration, which produce both heat and electrical power, have played an increasing in different industries. In order to utilize CHP units more efficiently, economic dispatch problem is applied to determine the optimal combination of the power and heat outputs of system while satisfying heat and power demand and other constraints with minimum fuel cost. This problem is known as combined heat and power economic dispatch (CHPED). Due to complex characteristics, heuristic and evolutionary based optimization approaches have became effective tools to solve the CHPED problem. The problem which is used in this paper is non-linear, non-smooth and non-convex. Harmony Search Algorithm is applied to two tests with different characteristics. The obtained results demonstrate the efficiency of the proposed method in solving non-convex and non smooth problems, with considering and non considering the transmission loss and also with both equal and different initialization of the problem for the same CHP units.

Keywords

• Combined heat and power (CHP),Cogeneration,economic dispatch (ED),Harmony Search algorithm (HS),Optimization

References

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