Node mapping criterion for highly saturated interior PMSMs using magnetic reluctance network

Autores: Caballero, D. (Autor de correspondencia); Prieto Rocandio, Borja; Artetxe Ballejo, Gurutz; Elosegui Simón, Ibon; Martínez-Iturralde Maiza, Miguel
Título de la revista: ENERGIES
ISSN: 1996-1073
Volumen: 11
Número: 9
Páginas: 2294
Fecha de publicación: 2018
Lugar: WOS
Interior Permanent Magnet Synchronous Machine (IPMSM) are high torque density machines that usually work under heavy load conditions, becoming magnetically saturated. To obtain properly their performance, this paper presents a node mapping criterion that ensure accurate results when calculating the performance of a highly saturated IPMSM via a novel magnetic reluctance network approach. For this purpose, a Magnetic Circuit Model (MCM) with variable discretization levels for the different geometrical domains is developed. The proposed MCM caters to V-shaped IPMSMs with variable magnet depth and angle between magnets. Its structure allows static and dynamic time stepping simulations to be performed by taking into account complex phenomena such as magnetic saturation, cross-coupling saturation effect and stator slotting effect. The results of the proposed model are compared to those obtained by Finite Element Method (FEM) for a number of IPMSMs obtaining excellent results. Finally, its accuracy is validated comparing the calculated performance with experimental results on a real prototype.