Assoc. Prof. Dr. Lionginas Liudvinavičius received qualification of Electrics Engineer in Kaunas University Technology and studied in St. Petersburg Railway Institute (1970-1975). Received Ph.D. degree of Technical Sciences at Vilnius Gediminas Technical University (VGTU) in 2012 and title of Association Professor in 2016. Currently he is working at Department of Railway Transport of VGTU. From 1975 to 2000 he worked as head of various departments of Lithuanian Railways. Transport Minister awarded him 'Honored Railwayman Name” (1998) and the second grade awards for contribution to Lithuanian Railways (2010). He is reviewer for IEEE journals. He has authored/coauthored many papers in journals, conference proceedings and he is coauthor of study manuals. His research interests are Railway Electrification, Electric Traction, Modern Electric Drive parameters automatic control, Locomotive Traction Converters, Electrical Machinery, Theoretical and Practical Aspects of Use Electrodynamic Braking, Hybrids vehicles, Energy Saving and Storage Systems using Supercapacitors.