Browse > Article
http://dx.doi.org/10.9714/psac.2020.22.2.038

Characteristics comparison between air-cored and iron-cored 100 kW HTS field winding synchronous motors  

Yoon, Jonghoon (Seoul National University)
Bong, Uijong (Seoul National University)
An, Soobin (Seoul National University)
Hahn, Seungyong (Seoul National University)
Publication Information
Progress in Superconductivity and Cryogenics / v.22, no.2, 2020 , pp. 38-43 More about this Journal
Abstract
This paper presents comparative research on characteristics of air-cored and iron-cored high-temperature superconductor (HTS) field winding synchronous motors. The 100 kW air-cored model is designed analytically by Spatial Harmonic Method, and based on this model, the iron-cored model having the same output power is designed for comparison. Due to the substantial difference of permeability property between air and iron-core, there is a difference of magnetic field magnitude and angle with respect to the HTS tape c-axis, resulting in a different critical current of the field winding considering the anisotropic property of HTS tape. For a detailed comparison between two models, the following key motor characteristics are calculated through the Finite Element Method (FEM) simulation: 1) critical current; 2) HTS wire length; and 3) torque characteristics. From the simulation results, it can be confirmed that the critical current value of the iron-cored model increases by 33 %. Also, in the case of the superconducting wire consumption, those of the iron-cored and air-cored models are 95.3 m and 815.6 m, respectively. So the wire usage can be reduced to about 88 % by using iron core. However, in terms of torque characteristics, the torque ripple of the iron-cored model is about twice as large as that of the air-cored model, which may be a disadvantage on vibration and acoustic noise.
Keywords
air-cored motor; HTS synchronous motor; iron-cored motor; spatial harmonics method;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. Park and M. Lim, "Design of High Power Density and High Efficiency Wound-Field Synchronous Motor for Electric Vehicle Traction," IEEE Access, vol. 7, pp. 46677-46685, 2019.   DOI
2 S. Hwang, J. Sim, J. Hong, and J. Lee, "Torque Improvement of Wound Field Synchronous Motor for Electric Vehicle by PM-Assist," IEEE Trans. Ind. Appl., vol. 54, no. 4, pp. 3252-3259, 2018.   DOI
3 W. Chai, W. Zhao, and B. Kwon, "Optimal Design of Wound Field Synchronous Reluctance Machines to Improve Torque by Increasing the Saliency Ratio," IEEE Trans. Magn., vol. 53, no. 11, pp. 1-4, 2017.   DOI
4 Q. Ali, T. A. Lipo, and B. Kwon, "Design and Analysis of a Novel Brushless Wound Rotor Synchronous Machine," IEEE Trans. Magn., vol. 51, no. 11, pp. 1-4, 2015.
5 M. Lim and J. Hong, "Design of High Efficiency Wound Field Synchronous Machine With Winding Connection Change Method," IEEE Trans. Energy Conv., vol. 33, no. 4, pp. 1978-1987, 2018.   DOI
6 G. Snitchler, B. Gamble, and S. S. Kalsi, "The performance of a 5 MW high temperature superconductor ship propulsion motor," IEEE Trans. Appl. Supercond., vol. 15, no. 2, pp. 2206-2209, 2005.   DOI
7 K. S. Haran, S. Kalsi, T. Arndt, H. Karmaker, R. Badcock, B. Buckley, T. Haugan, M. Izumi, D. Loder, and J. W. Bray, "High power density superconducting rotating machines-Development status and technology roadmap," Supercond. Sci. Technol., vol. 30, no. 12, p. 123002, 2017.   DOI
8 U. Bong, S. An, J. Voccio, J. Kim, J. T. Lee, J. Lee, K. J. Han, H. Lee, and S. Hahn, "A Design Study on 40 MW Synchronous Motor With No-Insulation HTS Field Winding," IEEE Trans. Appl. Supercond., vol. 29, no. 5, pp. 1-6, 2019.
9 K. Umemoto, K. Aizawa, M. Yokoyama, K. Yoshikawa, Y. Kimura, M. Izumi, K. Ohashi, M. Numano, K. Okumura, and M. Yamaguchi, "Development of 1 MW-class HTS motor for podded ship propulsion system," Proc. J. Phys. Conf. Ser., vol. 234, no. 3. p. 032060, 2010.   DOI
10 S. Fukui, T. Kawai, M. Takahashi, J. Ogawa, T. Oka, T. Sato, and O. Tsukamoto, "Numerical study of optimization design of high temperature superconducting field winding in 20 MW synchronous motor for ship propulsion," IEEE Trans. Appl. Supercond., vol. 22, no. 3, pp. 5200504-5200504, 2012.   DOI
11 H. Moon, Y. Kim, H. Park, M. Park and I. Yu, "Development of a MW-Class 2G HTS Ship Propulsion Motor," IEEE Trans. Appl. Supercond., vol. 26, no. 4, pp. 1-5, 2016.
12 H. Moon, Y. C. Kim, H. J. Park, I. K. Yu, and M Park, "An introduction to the design and fabrication progress of a megawatt class 2G HTS motor for the ship propulsion application," Supercond. Sci. and Technol., vol. 29, no. 3, 2016.
13 S. S. Kalsi, B. B. Gamble, G. Snitchler and S. O. Ige, "The status of HTS ship propulsion motor developments," Proc. 2006 IEEE PES, Montreal, Que., pp. 1-5, 2006.
14 M. Iwakuma, A. Tomioka, M. Konno, Y. Hase, T. Satou, Y. Iijima, T. Saitoh, Y. Yamada, T. Izumi, and Y. Shiohara, "Development of a 15 kW Motor With a Fixed YBCO Superconducting Field Winding," IEEE Trans. Appl. Supercond., vol. 17, no. 2, pp. 1607-1610, 2007.   DOI
15 J. H. Kim, C. J. Hyeon, H. L. Quach, S. H. Chae, J. Lee, H. Jeon, S. Han, T. K. Ko, Y. S. Yoon, H. W. Kim, Y. S. Jo, and H. M. Kim, "Characteristic Analysis of a 1-kW-Class HTS Motor Considering Armature Current Information," IEEE Trans. Appl. Supercond., vol. 28, no. 4, pp. 1-5, 2018.
16 S. Wimbush and N. Strickland. (2017) Critical current characterization of SuNAM SAN04200 2G HTS wire. [Online]. Available: https://doi.org/10.6084/m9.figshare.5182354.v1
17 D. Hu, J. Zou, T. J. Flack, X. Xu, H. Feng, and M. D. Ainslie, "Analysis of fields in an air-cored superconducting synchronous motor with an HTS racetrack field winding," arXiv preprint arXiv:1305.3815, 2013.
18 J. Pyrhonen, Tapan Jokinen, Valeria Hrabovcova, Design of Rotating Electrical Machines 2nd ed., Wiley, 2013.
19 C. Senatore, C. Barth, M. Bonura, M. Kulich and G. Mondonico, "Field and temperature scaling of the critical current density in commercial REBCO coated conductors," Supercond. Sci. Technol., vol. 29, no. 1, p. 014002, 2015.   DOI
20 D. K. Hilton, A. V. Gavrilin, and U. P. Trociewitz, "Practical fit functions for transport critical current versus field magnitude and angle data from (RE) BCO coated conductors at fixed low temperatures and in high magnetic fields," Supercond. Sci. Technol., vol. 28, no. 7, p. 074002, 2015.   DOI
21 M. L. Bash and S. D. Pekarek, "Modeling of Salient-Pole Wound-Rotor Synchronous Machines for Population-Based Design," IEEE Trans. Energy Conv., vol. 26, no. 2, pp. 381-392, 2011.   DOI
22 R. Islam, I. Husain, A. Fardoun and K. McLaughlin, "Permanent Magnet Synchronous Motor Magnet Designs with Skewing for Torque Ripple and Cogging Torque Reduction," Proc. 2007 IEEE IAS, New Orleans, LA, pp. 1552-1559, 2007.