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We present an alternative approach to analytic force computation in permanent-magnet machines, focusing on the tangential forces that generate the armature and the cogging torque. We extend previously presented methods using conformal mapping to overcome the limits imposed by the singularity of the magnetic flux density at the tooth tip that occurs during the transformation. Using our approach, the...
In this paper, we focus on the analytical calculation of the tangential forces that generate the armature and the cogging torque in brushless DC machines. We extend previously presented methods using conformal mapping to (i) avoid the singularity of the magnetic flux density at the tooth tip during the transformation and thereby overcome the limitations of this approach with respect to the calculation...
Expanding Part I of our contribution, this paper deals with the analytical calculation of the tangential forces in brushless dc machines, where we extend previously developed methods using conformal mapping and the Maxwell stress theory to enable a greater applicability of such methods. While Part I focuses on the explanation of the methodology itself, aiming to convey the overall picture and not...
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