A simulated annealing-based goal-attainment method for economic emission load dispatch of fixed head hydrothermal power systems

A novel multiobjective optimization method for economic emission load dispatch of fixed head hydro plants and thermal plants with nonsmooth fuel cost and emission level functions is presented. In this paper, the problem treats economic and emission as competing objectives. Assuming that the decision-maker has goals for each of the objective functions, the multiobjective problem is converted into a single-objective optimization by the goal-attainment method, which is then handled by the simulated annealing technique. The solution methodology can offer a global or near-global noninferior solution in a sense close to the decision-maker's requirements. Numerical results for a sample test system have been presented to demonstrate the applicability and validity of the proposed method.