Analytical Modeling of a Double-Sided Flux Concentrating E-Core Transverse Flux Machine with Pole Windings

Conference · Tue Aug 08 04:00:00 EDT 2017

DOI:https://doi.org/10.1109/IEMDC.2017.8002348· OSTI ID:1402563

Muljadi, Eduard ^[1]; Hasan, Iftekhar ^[2]; Husain, Tausif ^[2]; Sozer, Yilmaz ^[2]; Husain, Iqbal ^[3]

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1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
2. University of Akron
3. North Carolina State University

In this paper, a nonlinear analytical model based on the Magnetic Equivalent Circuit (MEC) method is developed for a double-sided E-Core Transverse Flux Machine (TFM). The proposed TFM has a cylindrical rotor, sandwiched between E-core stators on both sides. Ferrite magnets are used in the rotor with flux concentrating design to attain high airgap flux density, better magnet utilization, and higher torque density. The MEC model was developed using a series-parallel combination of flux tubes to estimate the reluctance network for different parts of the machine including air gaps, permanent magnets, and the stator and rotor ferromagnetic materials, in a two-dimensional (2-D) frame. An iterative Gauss-Siedel method is integrated with the MEC model to capture the effects of magnetic saturation. A single phase, 1 kW, 400 rpm E-Core TFM is analytically modeled and its results for flux linkage, no-load EMF, and generated torque, are verified with Finite Element Analysis (FEA). The analytical model significantly reduces the computation time while estimating results with less than 10 percent error.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1402563
• Report Number(s): NREL/CP-5D00-70345
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
MEC
TFM
equivalent circuit
magnetic
transverse flux machine