Activities
Intraday and close to real-time
Coreso has developed an innovative intraday process to review during the day its forecasts. This process is based on a continuous check o the differences between the reality and the forecasts. This check is performed by a tool called DADS (Data Acquisition and Display System) which store and compare real-time flows and forecasted flows on the observability area of Coreso. The global indicators derived from these data give alerts and alarms to the Security and Coordination Engineers. These alarms and other data collected from many different sources may trigger the need for updated studies to check whether the recommendations made previously are still valid.
Furthermore, Coreso is able to perform security analysis every 15 minutes, simulating faults on each 380 kV line, main generation unit or busbar in strategic substations. Indeed some TSOs provide every 15 minutes real-time snapshot files which represent their own grid: including topology, power flows, voltage, generation, load, and technical characteristics of the network. A dedicated tool merges these files in Coreso, in order to have a fully described grid of West of Europe. Should any data be missing, it is replaced with the forecast data sent at day-ahead.
A security analysis is done for each merged snapshot (96 a day) and results are displayed, showing constraints generated by the contingencies. Then, the security and coordination engineer analyses the results and may call national control centres if new constraints appear.
The Coreso’s security and coordination engineer advises to the TSOs’ dispatchers of the new constraints and proposes solutions with the final decision of which remedial action to take remaining with the national control centres.
