Calculation of no-load saturation curve for wound field synchronous machines based on magnetic equivalent circuits and conformal mapping

Hanic, Ana; Hanić, Zlatko; Vražić, Mario; Žarko, Damir

doi:10.1109/optim.2015.7426979

Cited by 7 publications

(1 citation statement)

References 31 publications

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“…Tooth Contour Method presented in [15,16] combines magnetic equivalent circuit method with conformal mapping for flux-switching PM machine analysis. A similar approach was used for synchronous reluctance machine with circular flux barriers in [17] and for synchronous wound field machine in [18]. An iterative method for machines with saturated iron that combines the conformal mapping and magnetic equivalent circuits is presented in [19,20].…”

Section: Introductionmentioning

confidence: 99%

Improved method for field analysis of surface permanent magnet machines using Schwarz–Christoffel transformation

Ramakrishnan

Žarko

Hanic

et al. 2017

IET Electric Power Applications

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Air gap field solution for an outer rotor permanent magnet (PM) machine is derived based on numerical Schwarz-Christoffel (SC) transformation of a single slot geometry and analytical solution of a point wire field in the rectangular canonical domain. This approach takes into account geometrical distortions of PM edges and field evaluation points located along the air gap centre, which occur due to conformal mapping of the slotted air gap into a slotless domain and impair the accuracy of the existing analytical field solutions using SC transformation and complex relative air gap permeance. The increased accuracy of the improved solution is confirmed by comparing the air gap flux density waveforms produced by the PMs and armature winding, cogging torque, and total torque with the results of time-stepping transient finite element simulation.

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