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

Speaker

Mr Siyu Guo (Kyoto University)

Description

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)

Co-authors

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