A CRITICAL ANALYSIS OF THE ASYMETRY IN THE OPERATION PLANNER DILEMMA

Abstract

In large hydro-dominated electrical power systems, such as the Brazilian interconnected system, with centralized operation the decision-making process during operation planning is usually referred as “operation planning dilemma”. In this case, the dilemma resides in the management of the hydroelectric power plant dams along the time with the focus on the minimal operation cost along the planning horizon. In the typical optimal timeline of the decision-making process, spillage and droughts are plotted with symmetrical undesired impacts, however, as it has been observed in recent years, the consequences are very asymmetric. This paper will present the dilemma of the planner and discuss the impacts of its real asymmetries.