Design and control of a permanent magnet bearingless machine

Design and control of a permanent magnet bearingless machine
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永磁无轴承电机的设计与控制

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发表时间:
2019
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通讯作者:
P. Jaatinen
P. Jaatinen
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P. Jaatinen

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Pekko Jaatinen永磁无轴承电机的设计和控制拉彭兰塔2019 75页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高速应用的整体效率可以通过应用直接驱动电机技术来提高。对于传统轴承技术来说,在高速区域运行是一项艰巨的任务。通过主动磁轴承,转子可以由磁力支撑。由于轴在空气中旋转,因此不需要污染油润滑,并且在实践中,转子系统是免维护的。然而,磁轴承结构增加了转子长度,这对转子的动态行为具有不利影响。无轴承电机技术将磁轴承的悬浮力能力与传统电机相结合。这种集成结构使机器长度比主动磁轴承更短。与传统的电机设计流程相比,在将无轴承特性纳入电机系统时,必须考虑额外的参数。因此,分析悬浮力和产生的力矩之间的相互作用是非常重要的。其主要目的是尽量减少这种相互作用,使无轴承机器的控制更直接。无轴承电机控制的转子构成了一个多输入多输出系统。该系统包括转子和马达单元之间的交叉耦合。在无轴承机床的控制中必须考虑这个问题。这篇博士论文讨论了与无轴承机器设计有关的问题。主要的重点是如何最大限度地减少扭矩和悬浮力产生之间的相互作用。采用基于模型的控制方法,通过考虑交叉耦合的无轴承机器的控制。通过系统辨识方法对模型进行了验证,并在无轴承机床上对控制器进行了实验测试。
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: --
发表时间: 2014-11
期刊: --
影响因子: --
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