Non-Linear Analytical Model for Bread-Loaf Linear PM Motor

Ferhat Turun, Tunahan Sapmaz, Yasemin Öner, Salman Ali () and Fabrizio Marignetti ()
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Ferhat Turun: Department of Electrical Engineering, Yildiz Technical University, Davutpasa 34220, Turkey
Tunahan Sapmaz: Department of Electrical Engineering, Yildiz Technical University, Davutpasa 34220, Turkey
Yasemin Öner: Department of Electrical Engineering, Yildiz Technical University, Davutpasa 34220, Turkey
Salman Ali: Department of Electrical and Information Engineering (DIEI), University of Cassino and Southern Lazio, 03043 Cassino, Italy
Fabrizio Marignetti: Department of Electrical and Information Engineering (DIEI), University of Cassino and Southern Lazio, 03043 Cassino, Italy

Energies, 2025, vol. 18, issue 15, 1-20

Abstract: This article presents a non-linear MEC for a linear PM motor, and its experimental validation. In the MEC model, winding flux leakage and iron saturation are considered. In addition, two different linear PM motor models (bread-loaf and surface-type) are examined for linear PM motors. An iterative method is used to predict the magnetic behavior of saturated magnetic steel. The proposed MEC for linear PM motors is compared with finite element analysis (FEA) to determine its accuracy and suitability. FEA is widely regarded as a highly accurate and reliable tool for analyzing linear PM motors. However, its primary limitation lies in its considerable computational time requirement. This disadvantage becomes particularly problematic during the early stages of the design process. Therefore, the proposed model addresses this limitation. Also, experimental results validate the practicality of the MEC. Finally, the proposed model can be a tool for different slot/pole combinations. Thus, the model can be considered suitable for both bread-loaf and surface-type PM motors.

Keywords: analytical model; magnetic equivalent circuit; linear PM motor; bread-loaf (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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