1. Faculty of Electrical Engineering and Computer Science, Lublin University of Technology, 20-618 Lublin, Poland
2. Department of Electric Power Stations and System, Vinnytsia National Technical University, 21021 Vinnytsia, Ukraine
3. Institute of Renewable Energy of the National Academy of Sciences of Ukraine, 02094 Kyiv, Ukraine
4. Department of Electric Power Engineering and Control Systems, Lviv Polytechnic National University, 79013 Lviv, Ukraine
5. Academy of Logistics and Transport Almaty, Almaty 050012, Kazakhstan
6. D. Serikbayev East Kazakhstan Technical University, Ust-Kamenogorsk 070000, Kazakhstan
7. Abai Kazakh National Pedagogical University, Almaty 050010, Kazakhstan