1. Thuyloi University,Faculty of Electrical & Electronics Engineering,Ha Noi,VietNam
2. Ha Noi University of Science and Technology,Department Of Industrial Automation,Ha Noi,Viet Nam
3. Key Laboratory For High Voltage Techniques, Institute of Energy,Ha Noi,Viet Nam
4. Hanoi University of Science and Technology,Computer Science Department - School of Information and Communications Technology,Hanoi,Vietnam