1. Department of Power Supplies and Automation, Kazakh National Agrarian Research University, Abai 8, Almaty 050010, Kazakhstan
2. Scientific Production Center of Agricultural Engineering (SPCAE), National Academy of Sciences of the Republic of Kazakhstan, Raiymbek Ave., 312, Almaty 050000, Kazakhstan
3. Department of Electrical Power Engineering, University of Ruse, 7017 Ruse, Bulgaria
4. Department of Telecommunications, University of Ruse, 7017 Ruse, Bulgaria