Authors
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Chukwuemeka C. Awah
Department of Electrical and Electronic Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria
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Ifeanyi K. Nnabuenyi
Instrument QA/QC Arco M&E, NLNG Sub Contractor, Bonny, Rivers State
Keywords:
Aspect ratio, design parameters, dual stator and permanent magnet machine.
Abstract
The impact of design parameters on output torque of dual stator permanent magnet machine is presented in this study. The considered design parameters are: aspect ratio, stator yoke size (Yt), stator tooth width (Wo), rotor centrifugal size (Rr), rotor inner pole length per pole pitch (Ri), rotor outer pole length per pole pitch (Ro), inner magnet size (PMi) and outer magnet size (PMo). The largest torque value of approximately 4.66 Nm is obtained using the implemented optimal design parameters, at constant copper loss condition. It is revealed that the resulting output torque of the investigated machine would be dependent upon the used design geometric values and invariably on the slot areas and supplied phase currents. The obtained results are predicted by means of two-dimension finite element analysis (2D-FEA). The finite element analysis (FEA) predicted optimal value of aspect ratio, stator yoke size (Yt), stator tooth width (Wo), rotor centrifugal size (Rr), rotor inner pole length per pole pitch (Ri), rotor outer pole length per pole pitch (Ro), inner magnet size (PMi) and outer magnet size (PMo) is 0.7, 3 mm, 4 mm, 5 mm, 0.6, 0.35, 4 mm and 3 mm, respectively.
Author Biography
Chukwuemeka C. Awah, Department of Electrical and Electronic Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria
The impact of design parameters on output torque of dual stator permanent magnet machine is presented in this study. The considered design parameters are: aspect ratio, stator yoke size (Yt), stator tooth width (Wo), rotor centrifugal size (Rr), rotor inner pole length per pole pitch (Ri), rotor outer pole length per pole pitch (Ro), inner magnet size (PMi) and outer magnet size (PMo). The largest torque value of approximately 4.66 Nm is obtained using the implemented optimal design parameters, at constant copper loss condition. It is revealed that the resulting output torque of the investigated machine would be dependent upon the used design geometric values and invariably on the slot areas and supplied phase currents. The obtained results are predicted by means of two-dimension finite element analysis (2D-FEA). The finite element analysis (FEA) predicted optimal value of aspect ratio, stator yoke size (Yt), stator tooth width (Wo), rotor centrifugal size (Rr), rotor inner pole length per pole pitch (Ri), rotor outer pole length per pole pitch (Ro), inner magnet size (PMi) and outer magnet size (PMo) is 0.7, 3 mm, 4 mm, 5 mm, 0.6, 0.35, 4 mm and 3 mm, respectively.
