1. Department of Electric Drive, Faculty of Mining, Dnipro University of Technology, D. Yavornytskoho 21, UA-49000 Dnipro, Ukraine
2. Faculty of Management, AGH University of Science and Technology, Al. Mickiewicza 30, PL-30059 Krakow, Poland
3. Institute of Renewable Energy Research and Energy Efficiency, Universidad Nacional de San Agustin de Arequipa, San Agustin Street 107, PE-04000 Arequipa, Peru