Fredy Alberto Valenzuela Murillo is a professor of electrical mechanical engineering at the Universidad Juárez Autónoma de Tabasco, Mexico. Doctor in Electrical Engineering Sciences from the Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV, Guadalajara). Member of the SNI-CONACyT (Level 1) and the SEI-CCyTET. His work focuses specifically on the analysis and control of electrical machines and the efficient use and saving of energy. His current research is the control of electrical motors using high order sliding mode techniques.