期刊
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
卷 57, 期 4, 页码 3632-3642出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2021.3076423
关键词
Conductors; Windings; Stator windings; Heat pipes; Cooling; Fans; Rotors; AC loss; additive manufacturing; aerospace; direct metal laser sintering (DMLS); fractional-slot concentrated winding (FSCW); heat pipe; hollow conductor; hybrid propulsion; modular machine; multijet fusion; permanent magnet (PM) machine; three-dimensional (3D) printing
资金
- Marquette University [01400-74985]
This article investigates the design of a 250 kW permanent magnet machine for aircraft propulsion, aiming for high specific power, high efficiency, and low thermal resistance direct-cooling design. The key enabling technology proposed is additively manufactured hollow conductors integrated with heat pipes. Parametric finite-element analysis and tradeoff studies on winding configurations and geometrical parameters were conducted to highlight their impact on specific power, winding ac losses, and efficiency.
This article investigates the design of a 250 kW permanent magnet (PM) machine used for aircraft propulsion. The focus is to pursue high specific power (>20 kW/kg), high efficiency (>95%), and low thermal resistance direct-cooling design for the demanding aerospace applications. The proposed key-enabling technology is additively manufactured hollow conductors integrated with heat pipes. Compared to the existing high specific power PM machines for aerospace applications, the proposed design features a much lower speed - 5000 r/min without any torque amplifier, which helps promote the specific power of the overall system. Based on parametric finite-element analysis, tradeoff studies on a variety of winding configurations as well as geometrical parameters have been carried out, highlighting their impact on specific power, winding ac losses, and efficiency. AlSi10Mg coil samples printed by direct metal laser sintering as well as thermal management system have been demonstrated to show the feasibility of the concepts.
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