Sažetak
This paper presents a comparative analysis of microgenerator topologies for high-speed applications, focusing on
their electromagnetic performance and feasibility for integration into low-heat energy systems. High-speed microgenerators,
directly coupled with low-heat turbines, offer a compact and efficient solution for waste heat, geothermal energy, and
concentrated solar power systems. Six different machine topologies, including surface permanent magnet, interior permanent
magnet, synchronous reluctance, and induction machines, are evaluated through electromagnetic simulations. Key
performance metrics such as efficiency, power density, torque-speed characteristics, and field-weakening capability are
analysed alongside manufacturing cost estimations. The study identifies the most promising configurations for high-speed
operation, providing a foundation for further optimisation and prototype development.
Ključne riječi
high-speed microgenerator, renewable energy conversion, multi-phase machines, performance rating