27 August 2017 to 1 September 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Low Speed Rotating Characteristics of 20 kW Class High Temperature Superconducting Induction/Synchronous Motor

29 Aug 2017, 13:15
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m E1 - Motors Tue-Af-Po2.06


Mr Siyu Guo (Kyoto University)


Our project research group has proposed a High Temperature Superconducting Induction Synchronous Motor (HTS-ISM) for the next generation transportation equipment, such as ships, trains, buses, and automobiles. The basic structure of the proposed HTS-ISM is as same as that of the traditional squirrel-cage induction motor. The difference is replacing the rotor (secondary) windings to the HTS windings. The application of HTS materials in this motor has a lot of advantages compared with the traditional ones. The target of our research is the overload characteristics of the HTS-ISM in low speed rotating mode. The 20 kW class prototype HTS-ISM was cooling in liquid nitrogen at temperature of 77 K. Through changing the excitation conditions of the HTS-ISM, we succeed in driving the motor in low speed rotating mode (< 600 rpm). Moreover, we can increase the voltage gradually from rated synchronous power to make HTS-ISM rotate in an overload mode within a pretty short time. The overload characteristics of this HTS-ISM can be analyzed by this experiment. We are succeed in achieving the overload slip power at 19.4 kW, the torque at 341 Nm, with the HTS-ISM at 53 V and 20 Hz (Synchronous speed Ns: 600 rpm), which exhibits the overload characteristics of the HTS-ISM in low speed rotating mode. These results show a promising candidate for the practical realization which promote the development of the next generation transportation HTS-ISM system. A presentation will be made based on the experimental results in the following MT-25 conference.
Acknowledgements: This work has been supported by Japan Science and Technology Agency under the program of Advanced Low Carbon Technology Research and Development Program (JST-ALCA) in Japan.

Submitters Country Japan

Primary author

Mr Siyu Guo (Kyoto University)


Taketsune Nakamura (Kyoto University) Dr Ryohei Nishino (Kyoto University) Kenichi Ikeda (Kyoto University Graduate School) Tomoharu Karashima (Kyoto University) Dr Masaaki Yoshikawa (IMRA MATERIAL R&D Co., Ltd.) Dr Yoshitaka Itoh (IMRA Material R&D Co., Ltd.) Dr Toshihisa Terazawa (IMRA MATERIAL R&D Co., Ltd.)

Presentation Materials