Design and Preliminary Experiments of a Rotating Armature Partial Superconducting Air-Core Generator

In this study, a 10 MW-class superconducting generator that can be applied to electric propulsion aircraft and large-capacity wind turbines is proposed. An active shielding air-core rotating armature-type superconducting generator was designed to minimize the weight and maximize the power density. A 10 MW 3000 rpm class (specific power: 13.7 kW/kg) generator for an electric propulsion aircraft and a 10 MW 500 rpm class (specific power: 4.3 kW/kg) generator for a large-capacity wind turbine were designed, respectively. In addition, to experimentally verify the armature rotating partial superconducting air-core-type superconducting generator, small experimental devices were manufactured, and preliminary experiments were performed on the force characteristics of the superconducting coil and the generating characteristics of the rotating armature-type generator to verify the feasibility of the study.