Analytical Modeling of a Novel Transverse Flux Machine for Direct Drive Wind Turbine Applications
This paper presents a nonlinear analytical model of a novel double sided flux concentrating Transverse Flux Machine (TFM) based on the Magnetic Equivalent Circuit (MEC) model. The analytical model uses a series-parallel combination of flux tubes to predict the flux paths through different parts of the machine including air gaps, permanent magnets (PM), stator, and rotor. The two-dimensional MEC model approximates the complex three-dimensional flux paths of the TFM and includes the effects of magnetic saturation. The model is capable of adapting to any geometry which makes it a good alternative for evaluating prospective designs of TFM as compared to finite element solvers which are numerically intensive and require more computation time. A single phase, 1 kW, 400 rpm machine is analytically modeled and its resulting flux distribution, no-load EMF and torque, verified with Finite Element Analysis (FEA). The results are found to be in agreement with less than 5% error, while reducing the computation time by 25 times.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1252172
- Report Number(s):
- NREL/CP-5D00-66400
- Resource Relation:
- Conference: Presented at the 2015 IEEE Energy Conversion Congress and Exposition (ECCE), 20-24 September 2015, Montreal, Quebec, Canada; Related Information: Proceedings of the 2015 IEEE Energy Conversion Congress and Exposition (ECCE), 20-24 September 2015, Montreal, Quebec, Canada
- Country of Publication:
- United States
- Language:
- English
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