1. School of Electrical and Computer Engineering, Technical University of Crete, Chania, Greece
2. Electronic Engineering Department, University of Guanajuato, Guanajuato, Mexico
3. School of Engineering and the Institute for Energy Systems, University of Edinburgh, Edinburgh, U.K.
4. Electrical Engineering Department, University of Valladolid, Valladolid, Spain
5. Mechatronics Engineering Department, Autonomous University of Querétaro, Queretaro, Mexico