The invited lecture focused on the unique design challenges of high-speed squirrel-cage induction machines, which differ significantly from traditional industrial motors due to mechanical limitations at high speeds. Key topics included rotor dimensioning based on equations and data analysis, material selection, and the impact of rotor construction topology on machine performance. A case study of a 6-kW, 120,000-rpm induction machine for a turbo circulator illustrated these concepts. The lecture also covered mechanical stress analysis using finite-element methods, comparisons of manufacturing techniques for high-precision rotors, and experimental verification of the proposed design through prototype testing.

Jan Barta was born in Novy Jicin, Czech Republic, in 1989. He received his M.Sc. and Ph.D. degrees in Power Electrical and Electronic Engineering from Brno University of Technology, Czech Republic, in 2014 and 2018, respectively.

During his doctoral studies, he completed several research stays at Lappeenranta University of Technology and SpinDrive, Finland. He is currently Associate Professor at Brno University of Technology, focusing on advanced electrical machines for aerospace, transportation electrification, and fusion reactor cooling. His research interests include high-speed electrical machines, international collaboration, and knowledge transfer in engineering education.