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1MW급 조류발전기 모듈화 및 유체베어링 설계적용 검토
방덕제(Deok-je Bang),김동준(Dong-Jun Kim),오진안(Jin-An Oh),한필완(Pil-Wan Han),전연도(Yeon-Do Chun) 한국해양환경·에너지학회 2021 한국해양환경공학회 학술대회논문집 Vol.2021 No.10
본 논문에서는 1MW급 직접구동방식 영구자석형 조류발전기의 가격, 유지보수, 가동률 및 신뢰성 측면에서 경쟁력을 높일 수 있는 복수모듈형 회전자 구조와 유체베어링 적용을 검토한다. 복수개의 모듈로 구성된 회전자 구조는 제작, 조립, 취급, 수송, 설치, 유지보수에 용이하며, 유체베어링은 운전시에 기계적 접촉이 제거되어 베어링의 수명과 신뢰성 향상이 가능하게 된다. In this paper, a rotor configured with a plural module combination structure and a hydraulic bearing are represented in order to enhance the competitiveness in terms of price, maintenance, availability and reliability of 1MW direct-drive permanent magnet tidal generator. The rotor structure constructed with plural modules is easy to manufacture, assemble, handle, transport, install, and maintain, and the hydraulic bearings can remove the mechanical contact in between the rotor and the stator of the generator, thereby improving the lifespan and reliability of the bearing.
TELM에 적용한 직병렬 공진형 DC/DC 컨버터의 출력전압 제어에 관한 연구
황계호,이영식,전진용,방덕제,김호종,신병철,강도현,김종무,Hwang Gye Ho,Lee Young Sik,Jeon Jin Yong,Bang Deok Je,Kim Ho Jong,Shin Byoung Chol,Kang Do Hyun,Kim Jong Moo 한국반도체디스플레이기술학회 2005 반도체디스플레이기술학회지 Vol.4 No.1
In this paper, with loosely coupled transformer Relies-parallel resonant type DC/DC converter is analyzed and adopted to the power source of a TFLM(Transverse Flux Linear Motor). To get more efficient operating mode of the series-parallel resonant type DC/DC converter, theoretical analysis using normalized parameters are accepted. The analysis includes a specially made ferrite transformer with two separately wound half cores in order to evaluate analytically and experimentally the changes in magnetizing the leakage fluxes and inductances caused by the distance between the halves. The proposed converter must be operated in switching Pattern III among the three switching patterns for the Zero Voltage Switching operation. According to Pulse Frequency Modulation(PFM) control method, the output voltage of the proposed circuit can be controlled. The results of the theoretical development are compared with practical measurements from a prototype system.