표제지
국문 요약
목차
제1장 서론 12
1.1. 연구 배경 12
1.2. 풍력·파력 복합 발전 플랫폼 선행연구 15
1.2.1. 반잠수식 (Semi) 해상풍력 발전기 기반 선행연구 15
1.2.2. 인장 계류식 (Tension Leg Platform) 해상풍력 발전기 기반 선행연구 17
1.2.3. Spar 형 해상풍력 발전기 기반 선행연구 19
1.3. 연구 목적 및 논문 구성 21
제2장 실험 및 수치 모델 24
2.1. 실험 모델 24
2.2. 수치해석 모델 28
제3장 수치해석 및 실험 결과 35
3.1. PART 1 (풍력 발전 타워 및 WEC PTO를 고려하지 않은 경우) 36
3.2. PART 2 (WEC PTO를 제외한 풍력 발전 타워만 고려한 경우) 43
3.3. PART 3 (풍력 발전 타워 및 WEC PTO를 모두 고려한 경우) 53
결론 64
참고 문헌 66
영문 요약 73
Table 1. Main design parameters of the combined wind-wave energy platform 26
Table 2. Regular wave conditions (실험 스케일) 36
Figure 1. HORNSEA wind farm, ORSTEAD 12
Figure 2. The coupled model of the TLMCD (Tuned Liquid Multi Column Damper) and the FOWT substructure 14
Figure 3. DWC(DeepCwind Combined), Si et al., 2021 16
Figure 4. SFC (Semi-submersible Flap-type wave energy Converter), Michailides et al., 2016 17
Figure 5. Numerical model of a combined energy platform, Kim et al., 2022 18
Figure 6. TWWC(TLP-Wind Turbine-WEC Combination), Ren et al., 2020 18
Figure 7. Conceptual sketch of the combined concept STC, Muliawan et al.,2013 20
Figure 8. WindWEC a hybrid wind-wave energy system, Karmirad and Koushan, 2016 20
Figure 9. Model of a combined wind-wave energy platform 25
Figure 10. Plan view of the experimental setup 27
Figure 11. Overview of the experimental setup and FOWT model 27
Figure 12. Motion response calculation process of combined wind-wave energy platform 28
Figure 13. Comparison of numerical and experimental motion results of a single FOWT (H=1.24 cm, Te=0.9 s). 37
Figure 14. Comparison of numerical and experimental motion RAOs of a single FOWT and combined platform 40
Figure 15. Comparison of numerical and experimental pitch motion RAOs of WECs 42
Figure 16. Comparison of numerical and experimental motion RAOs of a single FOWT and combined platform considering the wind tower 46
Figure 17. Comparison of mooring tension RAOs of the single FOWT and combined platform 48
Figure 18. Comparison of numerical and experimental pitch motion RAOs of WECs 50
Figure 19. Comparison of experimental and numerical pitch RAO of combined platform according to the fixed and hinged constraints of WEC 52
Figure 20. Comparison of combined platform motion RAOs according to the WEC PTO damping coefficient 56
Figure 21. Comparison of WEC pitch motion RAOs according to the WEC PTO damping coefficient 58
Figure 22. Comparison of combined platform and WEC in heave resonance period according to the WEC PTO damping coefficient. 63