1. University of Malaya,Power Electronics and Renewable Energy Research Laboratory,Kuala Lumpur,Malaysia,50603
2. Swinburne University of Technology,School of Science, Computing and Engineering Technologies,Hawthorn,Australia,VIC 3122
3. National University of Singapore,Singapore,Singapore,119077
4. Institute of Power Engineering (IPE), Universiti Tenaga Nasional,Kajang,Selangor,Malaysia,43000