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Sergio Luis Varricchio received the B.Sc. degree from the Catholic University of Petrópolis (UCP), Petrópolis, Brazil, in 1987, the M.Sc. degree from the Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil, in 1994, and the Ph.D. degree from the University of Brasília, DF, Brazil, in 2015, all in electrical engineering.

His Ph.D. thesis, for which he received the Honorable Mention Award CAPES Thesis 2016  (CAPES - Coordination for the Improvement of Higher Education Personnel, Brazil), focused on modeling and analysis of electrical networks and developing methods for order reduction of dynamic models concerning low and high frequency phenomena. 

Since 1989 he has been working at CEPEL, the Brazilian Electrical Energy Research Center, Rio de Janeiro, Brazil, as a project manager and as a researcher in the areas of modal analysis, model order reduction, power quality, and electromagnetic transients.

He is senior member of IEEE (Institute of Electrical and Electronics Engineers) and member of CIGRÉ (International Council on Large Electric Systems). He also has served as a reviewer for international journals as IEEE Transactions on Power Delivery, IEEE Transactions on Power Systems and IEEE Power Engineering Letters.