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A Schwarz–Christoffel (SC) mapping-based method is presented for accurately and efficiently predicting the thrust force of permanent magnet linear motors (PMLMs). It accounts for not only the slotting effect but also the end effect and the magnet shape. In this method, according to the magnet shape, the PMs are modeled as equivalent line currents on their surfaces. Through analyzing the invariant...
We present an effective method based on Schwarz-Christoffel (SC) mapping for computing the cogging force of a permanent magnet linear motor (PMLM). The permanent magnets (PMs) are substituted by equivalent line currents at Gaussian integration points. Using numerical SC mapping, one pole-pair of the PMLM is mapped to a configuration where the magnetic field can be solved analytically. The cogging...
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