1. School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, China
2. School of Electrical Engineering, Southeast University, Nanjing, China
3. LESI Laboratory, Djilali Bounaama University of Khemis Miliana, Khemis Miliana, Algeria
4. Département ENERGIE, FEMTO-ST, CNRS, Univ. Bourgogne Franche-Comté, Belfort, France