Melhoria para a visualização de eventos e alarmes gerados durante uma parada de emergência em uma unidade geradora hidrelétrica

Abstract

The operation of a hidroelectic powerplant must obbey the rules of regulation institutions, and this rules control the time that a porwerplant can stay out of operation. Then, at a programmed stop, the operator is responsable for identifying the causing problem of the stop and to restablish the powerplant within the less time and higher security level possible. Its in this problematic that this paper flows. This paper has the objective of presenting an improvement proposal for the viewing of events generated during a non-programmed stop, or an emergency stop at a hidroelectric generation unit. During an emergency stop ocurs what is commonly called event avalanche, but this events not always are showed in the same order as they ocurred in the field, or they are showed with the same time stamp, and this generates doubts about the real reason of the emergency stop. The method consists at a management logic that controls the order that the events ocurred during a non- programmed stop, creating the sequencing of the critical events, this way it will assure the fast interpretation and intervention by operators.