1. Department of Electrical Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
2. Department of Electrical and Computer Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
3. Vestas Wind System, Aarhus, Denmark
4. School of Electronics, Electrical Engineering, and Computer Science, Queen's University Belfast, Belfast, U.K.
5. Department of Electrical Engineering and Computer Science, Khalifa University, Abu Dhabi, UAE