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  1. بهینه‌ سازی چیدمان هیبریدی توربین‌ های باد فراساحلی و مبدل‌ های انرژی امواج
بهینه‌ سازی چیدمان هیبریدی توربین‌ های باد فراساحلی و مبدل‌ های انرژی امواج
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بهینه‌ سازی چیدمان هیبریدی توربین‌ های باد فراساحلی و مبدل‌ های انرژی امواج

فرش فروش ایمانی، امیر Farshforoush Imani, Amir

Optimization of the Hybrid Layout of Offshore Wind Turbines and Wave Energy Converters

Farshforoush Imani, Amir | 2024

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  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 58891 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Abbaspour Tehrani Fard, Majid
  7. Abstract:
  8. The considerable potential of wave energy in marine environments justifies its use as a complementary renewable energy source. However, deploying wind turbines offshore requires infrastructure that is compatible with water depth and harsh marine environmental conditions, which inevitably increases the cost of energy. One promising strategy for reducing these costs is to utilize the existing infrastructure of offshore wind turbines for the development of wave energy farms. In hybrid systems that integrate offshore wind turbines with wave energy converters, the fluid–structure interaction can be exploited constructively to maximize the energy captured by the converters while reducing the overall dynamic response of the structure. A key requirement for achieving this objective is the optimization of the relative positioning of the wind turbine and wave energy converters, the geometric characteristics of the devices, and the overall layout of the hybrid platform under site-specific environmental conditions. The present study investigates a methodology for developing an optimal hybrid platform and for evaluating its hydrodynamic and dynamic performance in both the time and frequency domains. The proposed framework consists of three main phases: establishing an appropriate criterion for assessing the potential of simultaneous offshore wind and wave energy extraction, examining the feasibility and integration strategies of different technologies, and selecting the most suitable configuration followed by a detailed performance assessment of the system. The resulting optimal configuration consists of mounting the IEA 15-MW wind turbine on a platform equipped with 23 oscillating water column wave energy converters, which also function as the platform foundations. The constructive interaction between the wave energy converters and the platform motion-control mechanism, achieved through the application of the high inertial torque of the turbine’s central core, leads to an ISIF coefficient of 16. In other words, energy harvesting based on this hybrid platform concept can be 16 times more efficient than the separate deployment of all wave energy converter units. By combining the capacities of offshore wind and wave energy, the proposed hybrid platform enhances energy extraction efficiency, reduces platform motions, improves structural performance, and enables more effective use of shared infrastructure. Accordingly, it provides a promising pathway for the development of integrated renewable energy systems in marine environments
  9. Keywords:
  10. Offshore Wind Turbine ; Offshore Renewable Energy ; Wave Energy Converter (WEC) ; Simultaneous Wind and Wave Energy Extraction ; Wind and Wave Energy Potential ; Layout Optimization

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