전기추진선박의 운전조건별 전력특성 및 추진전동기 특성 비교 해석
Characteristic Analysis of Integrated Power System and Propulsion Motor Comparison for Electric Vessels According to the Driving Condition
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초록
본 논문에서는 발전기, 스위치보드, VFD, 추진전동기 등으로 구성된 전기추전선박의 전력 네트워크를 모델링하고, 전력조류해석과 단락전류해석을 통하여 계절별 선박 운용에 따른 전력시스템 특성 해석 및 단락사고 발생 시 차단기의 용량을 선정한다. 이와 더불어 3.7MW급 유도전동기 및 영구자석형 동기전동기의 정성적, 정량적 비교 해석을 통해 전기선박 추진전동기로 적합성에 대해 추가 고찰한다.
Abstract
This paper deals with the characteristic analysis of the integrated power system applied for the electric propulsion ships. This includes the electric power system modeling which is accomplished with the electric power network mainly composed of generators, switchboards, variable frequency devices, electric motors, and etc. In addition, performance comparison between the permanent magnet synchronous motor (PMSM) and the induction motor (IM) for 3.7MW ship propulsion has been done. In order to investigated the main performance of propulsion motor, a coupled model taking into account torque density, copper loss, iron loss, efficiency, power factor, and torque ripple using finite element analysis (FEA) has been employed.
참고문헌 (6)
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- D. H. Clayton, "Electric Ship Drive and Power System", Conference Record of the 2004 24th International Power Modulation Symposium, pp.85~88 (2000)
- P. Lettelier, "Electric Propulsion Motors", Electric Propulsion; The Effective Solution, IMarest Conference Proceedings, pp.7.1~7.8 (1995)
- 전원, "선박용 전기추진시스템의 단락상정사례의 전력특성 분석", 한국마린엔지니어링학회지, 32(2), pp.323~329 (2008), 한국마린엔지니어링학회
- A. J. Mitcham, "Motors and Drives for Surface Ship Propulsion: Comparison of Technologies", Electric Propulsion; The Effective Solution, IMarE Conference Proceedings, pp.4.1~4.9 (1995)
- E. Schroeder, "Development of electric propulsion motors with integrated power electronics", presented at the Electric Machine Technology Symposium (2004)