1. Department of Electrical and Electronics Engineering, College of Technology (COT), University of Buea, Buea P.O. Box 63, Cameroon
2. Department of Electrical and Electronics Engineering, College of Technology, University of Bamenda, Bambili P.O. Box 39, Cameroon
3. Department of Electrical Engineering, Faculty of Engineering, Aswan University, Aswan 81542, Egypt
4. Department of Electrical Power and Machines, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt
5. Electrical Engineering Department, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
6. EEIS Laboratory, ENSET Mohammedia, Hassan II University of Casablanca, Casablanca 28830, Morocco