[IEEE 2018 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus) - Moscow and St. Petersburg, Russia (2018.1.29-2018.2.1)] 2018 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus) - Study of the operating modes of the 0.4 kV main distribution network, in Dushanbe city of the Republic of Tajikistan, with distributed solar generation for power losses and power quality estimation