Simulation of Magnetic Flux Distribution of Stator and Rotor Coil of Superconducting Air Cored Wind Turbine Generator Using COMSOL Multiphysics

Direct drive wind turbine generators are gaining importance for light weight, compact design in wind power generation. A new design approach of superconducting wind generator having both axial and radial air gaps between stator and superconducting rotor winding is selected for this simulation work. This paper deals with the simulation of magnetic flux distribution in stator and rotor coil of the same using the sliding mesh tool of COMSOL Multiphysics. In this work, the model geometry of the wind turbine generator is drawn using 3D CAD tool of COMSOL Multiphysics. AC/DC module has been chosen for the simulation of this HTS generator. Parametric sweep is incorporated in study portal, which evaluates field distribution of the model for every angular position of the rotor with respect to the stationary axis and stores the results. Combining all the results, an animation in motion is also made for the realization of flux distribution during rotation.