1. Electrical and Electronics Engineering Department, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan
2. Electrical Power Engineering Department, Kabul Polytechnic University, 5th District, Kabul, 1001, Afghanistan
3. Department of Energy Engineering, Engineering Faculty, Kandahar University, Kandahar, 3801, Afghanistan