Modeling of a permanent magnet linear synchronous motor using magnetic equivalent circuits

Abstract

This paper presents a modeling framework for permanent magnet linear synchronous motors based on magnetic equivalent circuits. In comparison to the commonly used dq0 model, the proposed modeling approach is able to systematically include magnetic saturation effects and has no restriction to harmonic motor quantities. In contrast to existing work, a differential magnetic equivalent circuit network is used to describe the stator quantities and the complete model is derived using a graph-theoretic approach. Furthermore, the resulting model is calibrated with measurements on a test bench and validated with additional measurement scenarios.