ホシノ　ツトム   星野　勉    所属   理工学部 総合理工学科    職種   教授
言語種別	英語
発行・発表の年月	2002/09
形態種別	学術雑誌
査読	査読あり
標題	Comparative Study of Axial-type Bi-2223 Bulk Motor with the Use of Different Stator Windings
執筆形態	共著
掲載誌名	Energy Efficiency in Motor Driven Systems
掲載区分	国外
出版社・発行元	Springer Science
巻・号・頁	pp.170-176
著者・共著者	Itsuya Muta, Taketsune Nakamura, Hun-June Jung, Tsutomu Hoshino
概要	Using high temperature superconducting (HTS) bulk materials, some types of bulk motors have been proposed and developed [1–4]. We have been studying the characteristics of electric motors with the use of Bi-2223 bulk disk rotor [5–8]. In order to do some preliminary researches, the stator of the motor has been constructed to be two-pole and three-phase concentrated armature winding wound around salient magnetic poles. The synchronous speed of the rotating magnetic field is in principle 3600 rpm. The test results, however, showed that the motor rotated with large slip and the torque decreased with increasing speed. As one of the main reasons for the results, we suppose the effect of the space harmonics of the air-gap magnetic field distribution. It is well known that magnetic space harmonics have the detrimental effect to motor performances. Therefore, the investigation of this effect is essential in order to realize the high performance HTS motor.
DOI	10.1007/978-3-642-55475-9_25
ISBN	3-5400-0666-4