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GFRP 연결체로 구성된 해상부유식 태양광발전구조물에 관한 계류시스템 설계 및 부유체 성능평가 연구

A Study on the Floating Body Performance and Mooring System Design of an Offshore Floating Solar System with Glass Fiber Reinforced Polymer Frame Members

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초록

Because of paucity of land, photovoltaic systems are increasingly being installed in coastal waters. However, specifications, such as the type and size of the structure applied to the offshore floating photovoltaic system, differ for onshore systems. This difference in specification results in numerous safety problems. Therefore, sea environmental conditions should be considered for the safety design of the floating body structure for photovoltaic systems. Accurate wave load evaluation and appropriate mooring line design for the target sea area are critical for effective design. In this study, a hydrodynamic design of an offshore photovoltaic floating structure was developed with glass-fiber-reinforced plastic (GFRP) as a structural member and appropriate arrangement of mooring lines. Numerical analysis of in-house code developed using KRISO was performed to optimize floating body motion stability and mooring line arrangement for an offshore floating photovoltaic power generation system with GFRP structural members. The results of the analysis confirmed the stability of the floating system and damage limit of the mooring line.

Abstract

Because of paucity of land, photovoltaic systems are increasingly being installed in coastal waters. However, specifications, such as the type and size of the structure applied to the offshore floating photovoltaic system, differ for onshore systems. This difference in specification results in numerous safety problems. Therefore, sea environmental conditions should be considered for the safety design of the floating body structure for photovoltaic systems. Accurate wave load evaluation and appropriate mooring line design for the target sea area are critical for effective design. In this study, a hydrodynamic design of an offshore photovoltaic floating structure was developed with glass-fiber-reinforced plastic (GFRP) as a structural member and appropriate arrangement of mooring lines. Numerical analysis of in-house code developed using KRISO was performed to optimize floating body motion stability and mooring line arrangement for an offshore floating photovoltaic power generation system with GFRP structural members. The results of the analysis confirmed the stability of the floating system and damage limit of the mooring line.

참고문헌 (12)

  1. Han, D., "Design Optimization of Large-scale Bifacial Photovoltaic Module Frame Based on FEM and RSM", Journal of the Korean Photovoltaic Society, 43(6), pp.1~12 (2023)
  2. Kim, S., "Parametric Study on Effect of Floating Breakwater for Offshore Photovoltaic System in Waves", Journal of Computation Structural Engineering Institute of Korea, 35(2), pp.109~117 (2022)
  3. Federiksen, H. D., "Wave Attenuation by Fluid Filled Bags", Journal of the Waterways, Harbors and Coastal Engineering Division, 97(1), pp.73~90 (1971)
  4. Zhang, H., "Hydrodynamic Performance of a Dual-Floater Hybrid System Combining a Floating Breakwater and an Oscillating-Buoy Type Wave Energy Converter", Journal of Applied Energy, 259, pp.114~212 (2020)
  5. Sim, K., "Structural Response Analysis for Multi-Linked Floating Offshore Structure Based on Fluid–Structure Coupled Analysis", Journal of Ocean Engineering and Technology, 37(6), pp.273~281 (2023)
  6. Sim, K., "A Comparative Study on the Structural Response of Multi-Linked Floating Offshore Structure between Digital Model and Physical Model Test for Digital Twin Implementation", Journal of Marine Science and Engineering, 12(262), pp.1~18 (2024)
  7. DNV, "Floating Wind Turbine Structures (DNV-ST-0119)", ~ (2021)
  8. DNV, "Position Mooring (DNV-OS-E301)", ~ (2021)
  9. DNV, "Part. 3 Hull – Chapter. 7 Finite Element Analysis (DNV-RU-SHIP)", ~ (2021)
  10. Choi, Y. R., "An Analysis of Second-order Wave Forces on Floating Bodies by Using a Higher-Order Boundary Element Method", Ocean Engineering, 28(1), pp.117~138 (2000)
  11. Hong, S. Y., "Numerical and Experimental Study on Hydrodynamic Interaction of Side-by-side Moored Multiple Vessels", Ocean Engineering, 32(7), pp.783~801 (2005)
  12. Ministry of Ocean & Fisheries, "KDS 64 10 10-Design Standard for Ports and Fishing Ports", ~ (2017)

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