Análise das estratégias de operação de hidrossistemas: o caso do hidrossistema de Cruzeta - RN

Abstract

The case study of Cruzeta aims to evaluate the impact of two strategies hydrosystems operation in the sectors of irrigation and urban supply. For this, was used a long-term strategy and a short-term strategy (strategy with hedding). At first, was observed that at certain times throughout the water reservoir is used that does not meet the demand for any user, even the highest priority. Thus, it is necessary to impose more severe levels of rationing and long for users less priority to maintain compliance of uses such as urban supply. This can be achieved by incorporating hedding in the hydrosystems operation which is performed by zoning the lake (setting warning levels). In short-term strategy, the reservoir is replaced by larger volumes stored giving greater sense of security to the system operators. The price paid for this is the increased feeling of failure for the user with lower priority. One way to reduce this risk would be to incorporate climate information in the hydrosystems operation. This is because with the climate information enables anticipating scenarios that may occur in the future and develop preventive measures against the predicted risk.