Experimental and Analytical Studies on Highly Efficient Regenerative Characteristics of a 20-kW Class HTS Induction/Synchronous Motor

This paper presents regeneration characteristics of a 20-kW class high-temperature superconductor induction /synchronous motor (HTS-ISM). It has experimentally been demonstrated that the HTS-ISM generates synchronous electric power at about rated condition (20 kW), and the corresponding efficiency is more than 90%. The tested characteristics have also been reproduced based on the nonlinear electrical equivalent circuit. These results clearly show the possibility of highly efficient synchronous regeneration performance.