Predictive Solution to Aid Decision Making in Tension Control Maneuvers by ONS Real-Time Operators

Decision-making in Real-Time (RT) operations at the Brazil's National Electric System Operator (ONS) is becoming increasingly complex due to grid expansion and the growing participation of intermittent energy sources. Although Operational Instructions (OIs) provide comprehensive guidelines, they cannot predict all possible scenarios. This paper presents the development of a predictive computational tool with an interface designed to meet operator demands, aimed at assisting in voltage control, one of the critical daily actions in the operation of the National Interconnected System (SIN). The proposed predictive voltage control solution applies techniques for high-performance Human-Machine Interface (HMI) and the Goal Directed Task Analysis (GDTA) method to identify user requirements. Test results with ONS operators demonstrate the tool's effectiveness.