• Irina N. Kolosok, Melentiev Energy Systems Institute SB RAS (Irkutsk, Russia)
• Elena S. Korkina, Melentiev Energy Systems Institute SB RAS (Irkutsk, Russia)

For reliable and fault-tolerant operation of an intelligent power system (IPS) operating in constantly changing conditions, monitoring and dispatching control in real time are necessary. Although many IPS control processes are automated, namely the dispatching personnel that keeps the system running. Situational awareness (SA) of an IPS operator can be described as complete information about the current IPS state. The insufficient level of the operator's SA significantly affects the likelihood that the system will enter a cascading power outage phase, and this transition is confirmed by numerous incidents in the power systems. The complexity of power systems is constantly rised, it increases the risk that human operators will not be able to manage the network in any situation if their cognitive abilities are not supported by appropriate tools. Such tools include the State Estimation (SE) procedure, which is the most important function that provides real-time calculation of the current EPS state.
The article discusses the issues of using the SE procedure to increase situational awareness in dispatching control of IPS (Smart Grid). The features of Smart Grid are formulated, which determine the relevance of research on the SA problem and the need to develop situational awareness of Smart Grid operators. The Smart Grid operating conditions, also the role of the dispatcher in emergency situations and during recovery measures are considered. The value of the Power System State Estimation (PSSE) in improving the SA of the power system dispatcher is presented. The analysis of the main data sources used to solve the PSSE problem has been performed. The requirements for the PSSE procedure when used in the SA structure are formulated. A PSSE Test Equations method developed at the Melentiev Energy Systems Institute (MESI SB RAS) based on synchronized phasor measurement (PMU data) that meets these requirements is presented. It is shown that the SE procedure provides information of the required quality for the tasks of dispatching control and monitoring of the Smart Grid and is an effective means of supporting decision-making and increasing situational awareness of Smart Grid operators.

smart Grid, situational awareness, power system state estimation, synchronized phasor measurements (PMU data)

2026-03-05