Author:
Bo Kai,Chen Junquan,Jiang Yapeng,Wang Dong
Abstract
AbstractIn recent years, with the development of ship electric propulsion system, High Temperature Superconducting (HTS) motors have gained attention as a promising potential resolution due to their high-power density and the progression of cryogenic refrigeration technology. We present an electromagnetic characteristics numerical analysis of 40 MW, 120 rpm, HTS synchronous motor which is a semi-superconducting motor: in fact, it has a superconducting rotor composed of YBCO material and a conventional stator. Combining electric resistivity variation of rotor copper shielding sleeve in low temperature environment and YBCO coil critical current, the electromagnetic behavior of the 40 MW HTS synchronous motor is analyzed with non-ferromagnetic stator support structure. To assess the effects of varying stator winding currents and thickness on eddy current losses of the copper shielding sleeve, calculations were done, and a preliminary discussion was initiated. This study has certain reference significance for electromagnetic design and optimization of multi-ten MW HTS motors, especially used in ship electric propulsion system.
Funder
National Natural Science Foundation of China
Publisher
Springer Science and Business Media LLC
Reference12 articles.
1. Bingnan, Z., Bochao, D., Tianxu, Z., Yang, X. & Shumei, C. Overview of research status and development of ship electric propulsion motors. Proc. CSEE 42, 7608–7622 (2022) ((in Chinese)).
2. Kiruba, S. et al. High power density superconducting rotating machines development status and technology roadmap. Supercond. Sci. Technol. 30, 123002 (2017).
3. Song, X. et al. Ground testing of the world’s first MW-class direct-drive superconducting wind turbine generator. IEEE Trans. Energy Convers. 35, 757–764 (2020).
4. Zhu, X. et al. Topology analysis, design, and comparison of high temperature superconducting double stator machine with stationary seal. IEEE Trans. Appl. Supercond. 30, 5200110 (2020).
5. Zhu, X. & Cheng, M. Design and analysis of 10 MW class HTS exciting double stator direct-drive wind generator with stationary seal[J]. IEEE Access 7, 51129–51139 (2019).