Optimal Power Flow base on Harmony Search Algorithm Consider Emission Constraint and Valve Point Effect

Today due to ever increasing growth trend and high costs of electrical energy generation and restrictions on the installation of new power plant units, minimization of the total generation costs need to presence of active units in the power network. The aim of optimal power dispatch is that with optimized allocation of the share of each generation unit, not only it can provide the required power of the network, but also the costs of power production would be minimized. In this paper is presented harmony search algorithm for optimal power flow and reduction of environmental pollution to minimize the costs considering non-linear constraints on power plant among value point effect have been considered as the objectives. Cost function for fuel of power system generation units is defined as non-linear and the constraints are also modeled in form of equality and inequality linear equations. The proposed method is applied on a standard IEEE 30-bus system. The results indicate the high capability of proposed algorithm to solve the optimization problem and also the obtained results are compared with the results gained by other evolutionary algorithms.

Keywords:

Optimal Power Flow , Value Point Effect , Emission Constraint , Harmony Search Algorithm ,