IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, VOL. 17, NO. 2, JUNE 2007 1587 Status of HTS Motor Development for Industrial Applications at KERI & DOOSAN Y. K. Kwon, S. K. Baik, E. Y. Lee, J. D. Lee, J. M. Kim, Y. C. Kim, T. S. Moon, H. J. Park, W. S. Kwon, J. P. Hong, Y. S. Jo, and K. S. Ryu Abstract—This work is development of HTS motor at DOOSAN heavy industry and Korea Electrotechnology Research Institute in Korea, and is sponsored by DAPAS program which is supported by Korean government. The final aim of the project is realization of HTS motor in the field of industry such as large driving pumps, fans and compressors for utility and industrial environments. In the first phase (2001–2004), 100 hp HTS motor was developed in order to implement the preliminary technology for the large appli- cable HTS motor. All of the performance characteristics are well met to the designed ones. In second phase (2004–2007), 1 MW HTS motor is developed for the purpose to fully represent the design and manufacturing issues for the larger capacity machine. The ma- chine is 2 pole and 3600 rpm, and all of the components are com- pletely manufactured. This machine is now under assembly. This paper summarizes the status of 1 MW HTS motor development, such as design, construction, and experimental test results. Index Terms—Air-core stator, double pancake coil, HTS field coil, rotating cryogenic cooling system, synchronous motor, 1 MW class. I. INTRODUCTION A S well known, advantages of the superconductivity could make electrical power devices, such as motors, generators, transformers, fault current limiters, and power transmission ca- bles, more efficient and compact with significant energy saving. More specially, in the case of the motors, the benefits of using the superconductors can be represented by the reduction of 50% in both losses and size compared to conventional motors of the same rating because of the high magnetic field generated by field winding wound with superconducting wire [1]. The smaller motor size also reduces friction and windage, and the amount of the losses in the armature material. According to the potential of the several advantages from the industrial application of the Manuscript received August 26, 2006. This work was supported by a grant from Center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Science and Technology, Re- public of Korea. Y. K. Kwon (e-mail: ykkwon@keri.re.kr). S. K. Baik (e-mail: skbaik@keri.re.kr). E. Y. Lee (e-mail: eylee@keri.re.kr). J. D. Lee (e-mail: jdlee75@keri.re.kr). J. M. Kim (e-mail: kimjm@keri.re.kr). Y. C. Kim (e-mail: yeongchun.kim@doosan.com). T. S. Moon (email: taesun.moon@doosan.com). H. J. Park (email: heuijoo.park@doosan.com). W. S. Kwon (email: ws.kwon@doosanheavy.com). J. P. Hong (e-mail: jphong@sarim.changwon.ac.kr). Y. S. Jo (e-mail: ysjo@keri.re.kr). K. S. Ryu (e-mail: ksryu@keri.re.kr). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2007.899250 TABLE I SUPERCONDUCTING SYNCHRONOUS MOTOR SPECIFICATION FOR ANALYSIS OF SYNCHRONOUS REACTANCE EFFECT ON DESIGN PARAMETERS HTS motor, its development projects were started from middle of the 1990’s in USA [2], [3] and 2000 in Germany [4]. In Korea, DAPAS program (Dream of Advanced Power system by Applied Superconductivity) was also initiated from 2001, which has been supported by the Ministry of Science and Technology, Korea. One of the main development targets in DAPAS program is the commercialization of large scale HTS motor. The collaboration between KERI (Korea Electrotech- nology Research Institute) and DOOSAN Heavy Industry goes on for several years in order to achieve the goal of the project. This project is composed of three phases. In the phase I (2001–2004), 100 hp HTS synchronous motor was developed in order to explore it’s potential, with specific goals of estimating the feasibility of concepts such as a designing technique, a ro- tating superconducting field winding and a closed cycle cooling system. This machine was successfully tested, and well fitted to the design parameters. In the phase II (2004–2007), 1 MW HTS motor is under development for the purpose to fully represent the design and manufacturing issues. This machine is 2 pole, 3600 rpm, and synchronous type. All of the components have been already designed, and manufactured completely. This machine is being assembled. This paper represents design, construction, and experimental test results of 1 MW machine. II. DESIGN AND PRELIMINARY TEST RESULTS OF 1 MW HTS MOTOR At the first step, the 1 MW HTS motor has been designed using the same topology as the previously demonstrated 100 hp HTS motor with two dimensional analysis model [5]. The primary design parameters and performance characteristics are summarized in Table I. 1051-8223/$25.00 © 2007 IEEE