Optimizing a Fully HTS Synchronous Generator and Calculating the Losses in Its Windings

New-generation aviation power systems that combine high specific power, high efficiency, and minimal carbon dioxide emissions are nowadays actively developed. This is especially important in view of more and more stringent environmental regulations and energy efficiency requirements in the aviation industry. One of promising research areas in this field is the use of high-temperature superconductivity (HTS) technologies, which have a potential to significantly improve the performance of electric machines. Two fully superconducting power generators with a capacity of 10 MW each, designed for use on aircraft are considered. Both generators operate at cryogenic temperatures of 20 K, but have different design constraints. For each generator, its electromagnetic characteristics were optimized using a finite element analysis, and losses in high-temperature superconducting windings operating at alternating current were calculated. By using the obtained study results, it is possible to evaluate the influence of design solutions on the performance of generators, thereby contributing to the development of highly efficient new-generation aviation power systems. These systems, which use HTS technologies, meet the current demands of the aviation industry for efficiency and reduction of negative environmental impact.