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- Title
Dual Rotor Structure with Modified Performance for Circumferential Hysteresis Synchronous Motors.
- Authors
Modarres, Mohammad; Vahedi, Abolfazl; Ghazanchaei, Mohammad Reza
- Abstract
The hysteresis motors have some usage limitations such as low power factor, low efficiency and small torque density. In this study a new topology for conventional hysteresis motors is proposed in order to improve performance characteristics of conventional motors. This structure with unique performance is named 'dual-rotor hysteresis motor' (DRHM). In order to simulate the proposed model a 3D finite element model is used that gives us a better insight of motor performance and has high level of accuracy. Optimum thickness for both inner and outer hysteresis ring is searched in data space considering maximum current density constrain. Concept of complex permeability is used for modeling the hysteresis ring in ellipse form and Simulation is based upon Maxwell's field equations considering the case of a circumferential flux type machine at synchronous speed. Meanwhile, for prototype motor new configuration for winding is presented that leads to reduction in ohmic losses.
- Subjects
ELECTROMAGNETIC induction; HYSTERESIS motors; FINITE element method; SYNCHRONOUS electric motors; LINEAR algebra; TORQUE
- Publication
International Review on Modelling & Simulations, 2010, Vol 3, Issue 5, p833
- ISSN
1974-9821
- Publication type
Article