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ASSESSMENT OF LATCHING CONTROL FOR THE HEMISPHERIC HEAVING BUOY TYPE POINT ABSORBER WITH AND WITHOUT NONLINEAR FROUDE-KRYLOV FORCE ACTING ON THE BUOY
- Kim, Sung-Jae;
- Koo, Weoncheol;
- Jo, Chul H.
Citations
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2초록
In this study, a latching control strategy was utilized to increase the efficiency of a heaving buoy-type point absorber with a hydraulic Power take-off(PTO) system. For this purpose, the hydrodynamic performance of a floating buoy was analyzed based on the potential flow theory and Cummins equation. Nonlinear Froude-Krylov(FK) force according to instantaneous wetted surface ofa buoy was calculated by a theoretical solution. The effect of the latching control on a point absorber was evaluated by considering PTO performance with hydrodynamic coefficients including nonlinear FK force. The hydraulic PTO system was modeled as an approximate coulomb damping force.
키워드
Point absorber; Wave energy converter; Latching control strategy; Hemispheric buoy; Heave motion; Hydraulic PTO system; WAVE ENERGY DEVICE
- 제목
- ASSESSMENT OF LATCHING CONTROL FOR THE HEMISPHERIC HEAVING BUOY TYPE POINT ABSORBER WITH AND WITHOUT NONLINEAR FROUDE-KRYLOV FORCE ACTING ON THE BUOY
- 저자
- Kim, Sung-Jae; Koo, Weoncheol; Jo, Chul H.
- 발행일
- 2019
- 유형
- Proceedings Paper
- 저널명
- PROCEEDINGS OF THE ASME 38TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, 2019, VOL 10
- 언어
- ENG
- 출판사
- AMER SOC MECHANICAL ENGINEERS
- 발행국가
- 미국
- ISSN
- P 2153-4772