Electromagnetic analysis of 0.2 MW High Temperature Superconducting (HTS) synchronous machine for HTS pole coils development

High Temperature Superconducting (HTS) synchronous machine consisting of six HTS poles in the rotor and air gap copper windings in the stator will help in manufacturing compact, lightweight, high power density, high over load capacity and low noise machines for ship propulsion applications. In this paper electromagnetic simulation of pole coils for 0.2 MW HTS synchronous machine is discussed. This involves FEM based electromagnetic simulation of 0.2 MW synchronous machine with air gap configuration of copper stator winding and HTS rotor. The primary focus of the paper is to calculate magnetic field along parallel and perpendicular directions to HTS tapes in six pole rotor configuration. These results are required for selection of HTS to develop superconducting pole coils for manufacturing prototype HTS synchronous machine. In this process, air gap flux density and voltage generated in the machine are also calculated.