1. Department of Electrical and Electronics Engineering, Faculty of Engineering, University of the Ryukyus, 1 Senbaru, Okinawa 903-0213, Japan
2. Department of Energy Engineering, Faculty of Engineering, Kabul University, Kabul 1006, Afghanistan
3. Research Promotion Unit, Co-Creation Management Department, University of the Ryukyus, Okinawa 903-0213, Japan
4. Energy Systems (Chubu Electric Power) Funded Research Division, IMaSS (Institute of Materials and Systems for Sustainability), Nagoya University, Nagoya 464-8601, Japan