1. The Center of Excellence in Electrical Power Technology, Faculty of Engineering, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
2. UTM-PROTON Future Drives Laboratory, School of Electrical Engineering, Universiti Teknologi Malaysia, UTM Skudai, Johor Bahru 81310, Johor Darul Takzim, Malaysia
3. Financial Engineering, School of Science and Technology, University of the Thai Chamber of Commerce, Dindang, Bangkok 10400, Thailand