1. Energy and Power Conversion Engineering University of Science and Technology Daejeon, Republic of Korea Electric Machine and Drive System Research Center Korea Electrotechnology Research Institute,Changwon,Republic of Korea
2. Electric Machine and Drive System Research Center Korea Electrotechnology Research Institute,Changwon,Republic of Korea
3. Dong-A University,Mechatronics System Research Laboratory,Electrical Engineering Department,Busan,South Korea