Abstract
In this paper, two types of conceptual structures of 10 MW fully superconducting offshore wind turbine generators (FSWTG) with an efficient electrical design method are presented. Four types of generator models, Gen. A - D, are compared according to different armature winding structures, and it's found that Gen. A is the preferable one. Optimization of the main generator parameters reveals that 36 poles with a pole pitch of 474 mm and electrical load of 6.0 kA/cm yields the best performance. The different design parameters of FSWTGs are compared to partially superconducting wind turbine generators (PWTG) with HTS field windings and copper armature windings and traditional wind turbine generators (WTG). Results show that FSWTGs are smaller in size, weigh 0.7 and 0.4 times less and are more efficient by 1.9–2.1% and 2.9–3.1% than PWTGs and WTGs, respectively. Lastly, the AC losses generated in the superconducting armature windings of the four types of FSWTGs are calculated and discussed.
Published Version
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