Development of Mesh-Based Generated Reluctance Network Using Trapezoidal Elements Based on Lumped Parameter Model
DOI:
https://doi.org/10.13052/2026.ACES.J.410410Keywords:
Finite element method, isosceles trapezoidal elements, lumped parameter model, magnetic equivalent circuit, Mesh-based Generated reluctance networkAbstract
This paper develops a novel Mesh-Based Generated Reluctance NetWork (MBGRN) model, which is based on the lumped parameter modeling method. The mesh-based approach automates network generation, replacing the manual flux path definitions required in traditional magnetic equivalent circuit (MEC). In this approach, the computational domain is represented in a polar coordinate system where the mesh elements are defined as isosceles trapezoids. The model utilizes a rotation simulation to bypass the remeshing processes common in the finite element method (FEM). A key advantage of the proposed MBGRN method is that the number of computational elements is reduced by half compared to the conventional FEM. This leads to a significant reduction in computation time, ranging from 10 to 15 times faster than traditional FEM, while maintaining a calculation error of less than 1% relative to the FEM. The development of this method is validated through a practical benchmark problem: the surface-mounted permanent magnet synchronous motor under no-load condition. The results obtained from the MBGRN model are thoroughly compared with those from the 2D FEM.
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M. N. Sadiku, “A simple introduction to finite element analysis of electromagnetic problems,” IEEE Transactions on Education, vol. 32, no. 2, pp. 85–93, 2002.
G. Lei, J. Zhu, Y. Guo, C. Liu, and B. Ma, “A review of design optimization methods for electrical machines,” Energies, vol. 10, no. 12, p. 1962, 2017.
S. Yang, S. Asfirane, S. Hlioui, S. Mezani, G. Krebs, and Y. Amara, “Introduction to mesh based generated lumped parameter models for electromagnetic problems,” CES Transactions on Electrical Machines and Systems, vol. 5, no. 2, pp. 152–162, 2021.
E. Fleurot, F. Scuiller, and J.-F. Charpentier, “Analytical models for fast and accurate calculation of electromagnetic performances of segmented permanent magnet synchronous machines with large angular gaps,” Applied Sciences, vol. 11, no. 1, p. 459, 2021.
R. M. Bhashini and K. Ragavan, “Magnetic equivalent circuit for surface-mounted pm motor,” in 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), pp. 1–5, 2018.
S.-M. Kim, W.-S. Jung, W.-H. Kim, T.-K. Bang, D.-H. Lee, Y.-J. Kim, and J.-Y. Choi, “Optimal design of permanent magnet synchronous machine based on random walk method and semi 3D magnetic equivalent circuit considering overhang effect,” Energies, vol. 15, no. 21, p. 7852, 2022.
C. Rasmussen and E. Ritchie, “A magnetic equivalent circuit approach for predicting PM motor performance,” in IAS’97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty Second IAS Annual Meeting, vol. 1, pp. 10–17, 1997.
L. Dang, N. Bernard, N. Bracikowski, and G. Berthiau, “Analytical model and reluctance network for high-speed PMSM design optimization application to electric vehicles,” in 2016 XXII International Conference on Electrical Machines (ICEM), pp. 1359–1365, 2016.
R. Jayarajan, N. Fernando, A. Mahmoudi, and N. Ullah, “Magnetic equivalent circuit modelling of synchronous reluctance motors,” Energies, vol. 15, no. 12, p. 4422, 2022.
V. Naeini and N. Sadeghi, “Optimum design of the outer rotor brushless DC permanent magnet motor with minimum torque ripples,” Journal of Operation and Automation in Power Engineering, vol. 14, no. 1, pp. 70–76, 2026.
S. Yang, Y. Amara, W. Hua, and G. Barakat, “Development of a generic framework for lumped parameter modeling,” Open Physics, vol. 18, no. 1, pp. 365–373, 2020.
S. Ouagued, Y. Amara, and G. Barakat, “Comparison of hybrid analytical modelling and reluctance network modelling for pre-design purposes,” Mathematics and Computers in Simulation, vol. 130, pp. 3–21, 2016.
K. Pluk, J. Jansen, and E. Lomonova, “3-D hybrid analytical modeling: 3-D Fourier modeling combined with mesh-based 3-D magnetic equivalent circuits,” IEEE Transactions on Magnetics, vol. 51, no. 12, pp. 1–14, 2015.
Z. Liu, C. Tang, Y. He, and J. Chen, “A 2D generalized equivalent magnetic network model for electromagnetic performance analysis of surface-mounted permanent magnet electric machines,” Electronics, vol. 14, no. 8, p. 1642, 2025.
W. Lu, J. Zhu, Y. Fang, and P.-D. Pfister, “A hybrid analytical model for the electromagnetic analysis of surface-mounted permanent-magnet machines considering stator saturation,” Energies, vol. 16, no. 3, p. 1300, 2023.
S. Asfirane, S. Hlioui, Y. Amara, and M. Gabsi, “Study of a hybrid excitation synchronous machine: Modeling and experimental validation,” Mathematical and Computational Applications, vol. 24, no. 2, p. 34, 2019.
D. Ceylan, L. A. Friedrich, K. O. Boynov, and E. A. Lomonova, “Convergence analysis of the fixed-point method with the hybrid analytical modeling for 2-D nonlinear magnetostatic problems,” IEEE Transactions on Magnetics, vol. 57, no. 2, pp. 1–5, 2020.
X. Shi, Y. Le Menach, J.-P. Ducreux, and F. Piriou, “Comparison of slip surface and moving band techniques for modelling movement in 3D with FEM,” COMPEL-The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 25, no. 1, pp. 17–30, 2006.
S. L. Ho, W. Fu, and H. Wong, “Direct modeling of the starting process of skewed rotor induction motors using a multi-slice technique,” IEEE Transactions on Energy Conversion, vol. 14, no. 4, pp. 1253–1258, 2002.
A. Demenko, “Movement simulation in finite element analysis of electric machine dynamics,” IEEE Transactions on Magnetics, vol. 32, no. 3, pp. 1553–1556, 1996.
E. Dlala, A. Belahcen, and A. Arkkio, “A fast fixed-point method for solving magnetic field problems in media of hysteresis,” IEEE Transactions on Magnetics, vol. 44, no. 6, pp. 1214–1217, 2008.
A. Zhou, D. Lin, C. Lu, M. Rosu, and D. Ionel, “An adaptive fixed-point iteration algorithm for finite element analysis with magnetic hysteresis materials,” IEEE Transactions on Magnetics, vol. 53, no. 10, pp. 1–5, 2017.
T. Cherrière, S. Hlioui, L. Laurent, F. Louf, H. B. Ahmed, and M. Gabsi, “Topology optimization of asymmetric PMSM rotor,” in 2022 International Conference on Electrical Machines (ICEM), pp. 469–475, 2022.
S. Sato, T. Sato, and H. Igarashi, “Topology optimization of synchronous reluctance motor using normalized gaussian network,” IEEE Transactions on Magnetics, vol. 51, no. 3, pp. 1–4, 2015.
D. M. Ionel, M. Popescu, M. I. McGilp, T. Miller, and S. J. Dellinger, “Assessment of torque components in brushless permanent-magnet machines through numerical analysis of the electromagnetic field,” IEEE Transactions on Industry Applications, vol. 41, no. 5, pp. 1149–1158, 2005.


