Megaspeed Drive Systems: Pushing Beyond 1 Million r/min
Megaspeed Drive Systems: Pushing Beyond 1 Million r/min
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DOI：
10.1109/tmech.2008.2009310
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发表时间：
2009-04
期刊：
影响因子：
--
通讯作者：
C. Zwyssig;J. W. Kolar;S. Round
中科院分区：
文献类型：
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作者：
C. Zwyssig;J. W. Kolar;S. Round
中尺度驱动系统的最新研究目标是转速接近100万r/min，功率范围为1-1 kW。未来燃料电池和热泵的涡轮压缩机系统、便携式纳米级燃气轮机的发电机/启动器、印制电路板钻探和加工主轴以及加压气流发电都将出现兆速驱动(MegaN驱动)的新兴应用。介绍了电机类型的选择和设计巨速电机所面临的挑战，如绕组概念、1000000r/min的机械转子设计、定子磁性材料的选择以及高频损耗和转矩密度的优化。此外，考虑到极低的定子电感和可能的高速轴承类型，如球轴承、空气轴承、箔片轴承和磁轴承，对有利的逆变器拓扑结构进行了综述。最后，讨论了瑞士苏黎世联邦理工学院MegaNDrive研究的样机和实验结果，并确定了极温运行和功率微电子机械系统作为下一步研究的目标。
The latest research in mesoscale drive systems is targeting rotational speeds toward 1 million r/min for a power range of 1-1 kW. Emerging applications for megaspeed drives (MegaNdrives) are to be found in future turbo compressor systems for fuel cells and heat pumps, generators/starters for portable nanoscale gas turbines, printed circuit board drilling and machining spindles, and electric power generation from pressurized gas flow. The selection of the machine type and the challenges involved in designing a machine for megaspeed operation such as the winding concepts, a mechanical rotor design capable of 1 000 000 r/min, the selection of magnetic materials for the stator, and the optimization concerning high-frequency losses and torque density are presented. Furthermore, a review of the advantageous inverter topologies, taking into account the extremely low stator inductance and possible high-speed bearing types such as ball bearings, air bearings, foil bearings, and magnetic bearings, are given. Finally, prototypes and experimental results originating from MegaNdrive research at Swiss Federal Institute of Technology Zurich are discussed and extreme temperature operation and power microelectricalmechanical system are identified as targets for future research.