Magnetic simulations of a fully superconducting 10 MW class wind generator based on 3-D FEA

A 10 MW class synchronous wind generator that has both the field and armature windings superconducting is presented. The field winding is assumed to be made of YBCO tapes while multifilament MgB₂ wires are considered for the armature winding. The proposed design is analyzed using a 3-D finite element based on simulation tool MAXWELL 14.0. The magnetic flux distribution figure of the proposed model is obtained. The magnetic flux of the armature winding is calculated and the magnetic flux curve of the one cycle is drew. The results obtained show that a higher output voltage, and hence higher power levels, can be achieved compared with the more common arrangement where the field winding is superconducting whereas the armature winding is made of copper. Compared with the 2-D FEA, the 3-D FEA is more useful to design a more optimal model. The proposed structure weights less and has better flux density distribution within the armature.