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16 results on '"Ikram, Junaid"'

13. Improved Model of the Iron Loss for the Permanent Magnet Synchronous Motors

Author

Junaid Qudsia, Byung-il Kwon, and Ikram Junaid

Subjects
Materials science, Stator, law, Control theory, Computation, Eddy current, Skew, Control engineering, Synchronous motor, Finite element method, Magnetic flux, Yoke, law.invention
Abstract

This paper presents an improved iron loss model, for the computation of the no load iron loss in the stator core of the in-wheel permanent magnet synchronous motors (PMSM), for the cases of with and without stator skew. 2-D analytical model is used for the computation of tooth and yoke flux densities of the in-wheel PMSM. The no load iron loss computed by the improved iron loss model, for the cases of with and without skew is compared with the finite element method (FEM) and the results show good consistency.

Published
2012

16. Analytical analysis of the magnetic field and no-load voltage for the double sided axial flux permanent magnet synchronous generator

Author

Junaid Qudsia, Byung-il Kwon, and Ikram Junaid

Subjects
Physics, business.industry, Stator, Electrical engineering, Permanent magnet synchronous generator, Mechanics, Magnetic flux, law.invention, Shunt generator, law, Electromagnetic coil, Magnet, business, Excitation, Armature (electrical engineering)
Abstract

This paper presents a 2-D analytical model for the characteristic analysis of the double-sided axial flux permanent magnet synchronous generator (AFPMSG) with coreless stator for direct drive wind energy system. The resultant no load field is computed by the superposition of the magnetic field produced by the upper and lower magnets by considering both axial and circumferential components. Armature reaction magnetic field is computed for the whole coil region by considering armature coil as current sheets. The no load voltage is computed by considering the axial components of no load magnetic field due to both lower and upper magnets. The no load voltage computed by the analytical model is compared with 3-D finite element method (FEM) and the results show good consistency between them.

Published
2010

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