Verbytskyi, Ievgen Volodymyrovych2021-07-142021-07-142021-06DC and AC power grids with alternative energy sources - 2. Lecture notes [Electronic resource] : tutorial for students speciality 171 "Electronics" / Igor Sikorsky Kyiv Polytechnic Institute ; compiler I. V. Verbytskyi. – Electronic text data (1 file: 1,77 Mbyte). – Kyiv : Igor Sikorsky Kyiv Polytechnic Institute, 2021. – 88 p. – Title from the screen.https://ela.kpi.ua/handle/123456789/42390The lecture notes of the dicipline "DC and AC power grids with alternative energy sources - 2" contain the main technical requirements and measures to coordinate the operation of power grids, reactive power compensation and elimination of power power distortion, describes the possibility of using power electronics to increase energy efficiency. The possibility of using DC power grids to reduce losses during electricity transportation is considered. The advantages and disadvantages after the transition from centralized to distributed power supply systems with intelligent control are analyzed. Also, in the lecture notes the methods of calculation of the devices of power electronics intended for increase of energy efficiency of electric networks are analyzed.enrenewable energy sourcesnon-traditional energy resourcesenergy savingpower supply systemsMethodical Material88 p.