Dynamic modelling of passive electrodynamic self-bearing axial-flux permanent magnet machines
Dynamic modelling of passive electrodynamic self-bearing axial-flux permanent magnet machines
- New search for: Lefebvre, Martin
- New search for: Van Verdeghem, Joachim
- New search for: Kluyskens, Virginie
- New search for: Dehez, Bruno
- New search for: Lefebvre, Martin
- New search for: Van Verdeghem, Joachim
- New search for: Kluyskens, Virginie
- New search for: Dehez, Bruno
Topologies of electrodynamic thrust bearings (EDTB) and axial flux permanent magnet (AFPM) machines present a significant number of similarities. Starting from this observation, the present paper introduces a new machine topology combining both a bearing and motor behavior to obtain a self-bearing AFPM machine in a single winding. In addition, this paper presents a model describing the axial and rotational dynamics of such a machine. This model directly relates the axial displacement to the force developed by the EDTB and the rotational motion to the driving torque generated by the AFPM machine and the drag torque arising from the EDTB. The calculations required to determine the model parameters are also detailed. Furthermore, this work assesses the stability properties of the system under constant rotational speed, based on a root locus analysis. Finally, a practical case is considered to assess the performance of the system.
Document information
Dynamic modelling of passive electrodynamic self-bearing axial-flux permanent magnet machines
2017-01-01
Conference paper
Electronic Resource
English