Goal-attainment method based on simulated annealing technique for economic-environmental-dispatch of hydrothermal power systems with cascaded reservoirs

A goal-attainment method based on simulated annealing technique is applied to determine the optimal noninferior hourly generation schedule of economic-environmental-dispatch problem in a hydrothermal power system consisting of multi-reservoir cascaded hydro plants with time delay and thermal plants with nonsmooth fuel cost and emission level functions. In this article, cost and emission are treated 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 a goal-attainment method which is then handled by a simulated annealing technique. The solution methodology can offer an optimal noninferior solution for the decision maker. Results of the application of the proposed method are presented.