Design and analysis of air-core superconducting generator for wind power applications

In this paper, the design and analysis of the air-core superconducting (SC) generators are carried out. Air-core SC generators have the advantage of reducing the gross weight of the system because they do not have a high-weight iron core that constitutes a magnetic circuit, and can be a good design option with high power density. The magnetic field acting on the outside of the air-core SC generator can be shielded by using an active shielding SC coil. In this study, we compared the weight and output power of an air-core SC generator with an active shielding SC coil to that of conventional SC generators, and studied design conditions for application to wind power generation systems. The results show that the total weight of the generator with actively shielded SC generator has lower weight compare with conventional magnetically shielded SC generator. (paper)