ABSTRACT
High-speed electrical machines (HSEMs) are vital for aerospace propulsion, industrial compressors, and turbo-machinery applications where compactness, high power density, and dynamic performance are critical. Unlike conventional low-speed machines, HSEMs face challenges including rotor dynamics, bearing stresses, magnetic saturation, thermal management, and insulation degradation at high rotational speeds. This paper reviews the design principles, performance characteristics, and challenges of high-speed electrical machines, with a focus on permanent magnet synchronous machines (PMSMs) and induction-based HSEMs. Tables and 2D figures are included to illustrate comparative performance metrics, design trade-offs, and thermal distribution. Emerging trends such as wide-bandgap semiconductors, additive manufacturing, and active magnetic bearings are also discussed.
KEYWORDS: - High-speed electrical machines, Permanent magnet synchronous machines, Aerospace motors, Industrial high-speed drives, Rotor dynamics, Thermal management
Full Issue
| View or download the full issue | PDF 67-72 |