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Mechanical Design of a 750 ㎾ Direct - drive Wind Turbine Generator System
손영욱(Y. U. Sohn),손정봉(J. B. Son),박인수(I. S. Park),김영찬(Y. C. Kim),김경렬(K. R. Kim),정진화(C. W. Chung),전중환(Ch. H. Chun),류지훈 박지훈(J. Y. Ryu),박진일(J. I. Park),변철진(C. J. Byun),김두훈(D. H. Kim) 한국유체기계학회 2004 유체기계 연구개발 발표회 논문집 Vol.- No.-
A prototype of 750 ㎾ direct-drive wind turbine generator system, KBP-750D is under development in Korea. For the gearless, direct-drive prototype a synchronous generator with permanent magnets has been developed. The upwind 3-blade type machine employs variable speed and pitch control. The operating ranges of wind and rotor speed are 3 to 25 m/s and 9 to 25 rpm, respectively. The tip speed ratio of rotor blade is 7.5, designed for power coefficient 0.47. The blade pitch and torque are controlled with the predefined torque-speed curve according to the conditions of wind and public electric grid. This paper describes the outlines of primary components of KBP-750D.