1. Electrical and Electronics Engineering Department, College of Engineering, Universiti Tenaga Nasional, Kajang, Malaysia
2. Institute of Power Engineering, Electrical and Electronics Engineering Department, College of Engineering, Universiti Tenaga Nasional, Kajang, Malaysia
3. Department of Electronic System Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia