Design and control of a permanent magnet bearingless machine
Design and control of a permanent magnet bearingless machine
复制标题
永磁无轴承电机的设计与控制
DOI:
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复制
发表时间:
2019
期刊:
影响因子:
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通讯作者:
P. Jaatinen
中科院分区:
文献类型:
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作者:
P. Jaatinen
Pekko Jaatinen Design and control of a permanent magnet bearingless machine Lappeenranta 2019 75 pages Acta Universitatis Lappeenrantaensis 879 Diss. Lappeenranta-Lahti University of Technology LUT ISBN 978-952-335-442-5, ISBN 978-952-335-443-2 (PDF) ISSN-L 1456-4491, ISSN 1456-4491 The overall efficiency of high-speed applications can be improved by applying direct drive motor technology. Operating in the high-speed region is a demanding task for the traditional bearing technology. With active magnetic bearings, the rotor can be supported by the magnetic force. As the shaft is rotating in the air, polluting oil lubrication is not needed, and in practice, the rotor system is maintenance free. However, the magnetic bearing construction increases the rotor length, which has an adverse effect on the dynamical behavior of the rotor. Bearingless motor technology combines the levitating force capability of the magnetic bearing with the traditional electrical motor. This integrated structure enables a shorter machine length than with the active magnetic bearings. Compared with the traditional electrical machine design flow, additional parameters must be taken into account when incorporating the bearingless feature into a motor system. It is important to analyze the interaction of the generated torque and the levitating force. The main objective is to minimize this interaction so that the control of the bearingless machine is more straightforward. The rotor controlled by bearingless motors constitutes a multi-input multi-output system. The system includes cross-couplings between the rotor and the motor units. This issue must be taken account in the control of the bearingless machine. This doctoral dissertation addresses issues related to the design of a bearingless machine. The main focus is on how to minimize the interaction between torque and levitation force generation. A model-based control approach is adopted to control the bearingless machine by taking into account the cross-couplings. The model is validated by a system identification approach, and the controllers are tested experimentally in the bearingless machine.
DOI:
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发表时间:
2014-11
期刊:
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影响因子:
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作者:
K. Price;R. Storn;J. Lampinen
通讯作者:
K. Price;R. Storn;J. Lampinen
DOI:
10.1016/j.precisioneng.2011.05.002
发表时间:
2012-01-01
影响因子:
3.6
作者:
Asama, Junichi;Kawata, Ryo;Chiba, Akira
通讯作者:
Chiba, Akira