Keyword: «intelligent substation»

In the future, the zone of decentralized power supply of the Republic of Sakha (Yakutia) will remain due to the large distances between settlements and weak transport infrastructure. The voltage of 6–10 kV and 0.4 kV distribution networks is highly susceptible to distorting loads caused by the widespread use of converters and electric motors. Consumers will be provided with electricity from local low-power energy sources, mainly diesel power plants using distributed generation, including renewable energy sources, which will further worsen the performance of electrical energy in distribution networks due to fluctuations in the parameters of these sources. Therefore, it is necessary to create and introduce new types of devices in distribution networks. For a comprehensive solution to the problem of reactive power compensation (voltage stabilization), balancing and dynamic filtering of voltage in distribution networks, a new technical solution is proposed based on a thyristor stabilizer of parameters.

In the future, the decentralized power supply zone of the Republic of Sakha (Yakutia) will remain due to the large distances between settlements and weak transport infrastructure. The voltage of distribution networks of 6-10 kV and 0.4 kV is strongly affected by the distorting load caused by the widespread use of converter devices and electric motors. Consumers will be provided with electricity from local low-power energy sources, mainly diesel power plants using distributed generation, including renewable energy sources, which will further worsen the performance of electric energy in distribution networks due to fluctuations in the parameters of these sources. Therefore, it is necessary to create and implement new types of devices in distribution networks.

The task of microgrid is uninterrupted power supply and ensuring an energy balance between the consumed and generated capacities. The peculiarities of the operation of renewable energy systems is the dependence of electricity production on external factors: wind speed and direction, daylight duration, water regime of rivers, etc. The non-stationary mode of operation of generating equipment affects the reliability of power supply and the quality of electrical energy. To eliminate the influence of unsteadiness of electricity production, electric energy storage devices based on rechargeable batteries are used to maintain a balance of capacities in an isolated system during periods of generation shortage. Combining various sources into a single system makes it possible to ensure its stability in various operating modes.