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Electromagnetic Design Study of Transverse Flux Enhanced Type Superconducting Wind Turbine Generators

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5 Author(s)
Quddes, M.R. ; Grad. Sch. of Eng., Univ. of Tokyo, Tokyo, Japan ; Sekino, M. ; Ohsaki, H. ; Kashima, N.
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Transverse flux enhanced type superconducting synchronous machines have been studied for large-capacity wind power generation. The generators have multiple circular superconducting field coils in the rotor and copper armature windings in the stator. A parametric design study and electromagnetic characteristic analysis of the superconducting wind turbine generators (WTGs) have been carried out. The target output is 10 MW for a rotational speed of 10 rpm, and the diameter of the whole coil system is 5 m. Superconducting technology is quite effective for compact and lightweight design of large power capacity, low-speed and high torque generators. Armature and field coil dimensions and the number of poles are key parameters in the design study. FEM analysis was carried out to obtain magnetic flux density, magnetic flux linkage, induced voltage, fundamental generator characteristics, etc. Required superconducting wire length was also estimated.

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Applied Superconductivity, IEEE Transactions on  (Volume:21 ,  Issue: 3 )