Intersystem emergency training of operational dispatch personnel of the Belarusian energy system was held

On June 18, 2020, the annual intersystem emergency training of operational dispatch personnel was held in the power system of Belarus. The experts of the dispatching service and the electric modes control department took an active part in its management under the general supervision of Denis Kovalev, deputy general director and chief dispatcher of Belenergo.

The purpose of the training was to work out the interaction of the operational and dispatching personnel of the Belarusian energy system in case of emergencies, violations of equipment operating modes.

Representatives of the Brestenergo, the Minskenergo, the Mogilevenergo, and also the “Belarusian NPP” State Enterprise took part in the training.

As part of the training, emergency response actions were tested at the 750 kV Belorusskaya substation. The issues of using the regulatory emergency power reserve to maintain the balance of the unified energy system of Belarus have been worked out.

According to the legend of the training, an emergency occurred because of a shutdown of the unit at the Belarusian nuclear power plant, which led to a significant imbalance of power in the power system. It took a short period to use the entire rotating power reserve. But when gaining power, according to legend, unit 7 accidentally shut down at Berezovskaya TPP. An increase in the power imbalance led to the operation of emergency control equipment at the Belorusskaya substation and the disconnection of some consumers. With the further development of the situation, very difficult regime conditions developed, associated with the overload of equipment and interstate cross sections. There was a risk of allocating the power system to isolated operation. To prevent a possible violation of the energy system stability, measures were taken to use the regulatory emergency power reserve from the energy systems of the Baltic States and Ukraine.

Working out of situations with emergency events has once again shown the importance of the allocation of authorities during the liquidation of accidents, the provision of interaction between participants, both in the shift of dispatchers of the “Belenergo” and between operational dispatch services of different control levels. Of particular importance is also the interaction with dispatching units of foreign energy systems.

Operational and dispatching personnel successfully solved the problem of bringing the balance of the power system to acceptable limits. At the end of the training, a detailed analysis of its participant’s actions was carried out. The training made it possible to verify the readiness of the operational dispatching links for work in the conditions of connection of the Belarusian Nuclear Power Plant to the integrated power system of the country.

As noted the head of the training, Deputy General Director for Operations, Chief Dispatcher of the Belenergo state-owned enterprise Denis Kovalev: “The most difficult event in the training was the shutdown of the largest generating unit of the power system - power unit No. 1 of 1200 MW of the Belarusian Nuclear Power Plant. The training showed the key importance of measures to integrate the nuclear power plant into the balance of the power system, which include the implementation of projects for the construction of peak-reserve sources and electric boilers at the power system facilities. In general, we can say that the training was successful. We will once again analyze the actions of operational personnel at each level of dispatch control, we will be able to develop additional measures and ensure operational readiness of our energy system for operating modes under the new conditions. "

Emergency Operations Drills are conducted on the regime simulator “Finist”, which provides the most adequate operating mode simulation of the power system. The “Finist” simulator mathematical model of the Belarus integrated power system reflects the parameters of the existing equipment, the start-stop characteristics of the generating equipment, as well as the reaction of the control systems to the maximum extent.

All training participants have the opportunity to observe the real power flow distribution, changes in the operating parameters of the equipment and, accordingly, timely make technical and organizational decisions to eliminate emergencies