- 期刊
DESIGN OF A TWO-BODY WAVE ENERGY CONVERTER BY INCORPORATING THE EFFECT OF HYDRAULIC POWER TAKE-OFF PARAMETERS
摘要
Today, more than 80% of world's energy is obtained from the fossil fuels. Therefore, the researchers are looking for new methods for exploitation of renewable energy resources. Sea waves are an important source of environmental energy which can be converted into energy needed for different purposes. In current study, a floating-point absorber wave energy converter is simulated and optimized by the authors. The system is modeled through a two-body floating-point absorber (FPA) with two degrees of freedom in the heave direction. The model is equipped with a hydraulic power take off (PTO) system aiming to study the performance of the two-body wave energy converter (WEC) in regular and irregular waves. The fluid and structural parameters of the point absorber have been calculated and used for the purpose of optimization. Then, the optimum PTO damping coefficient was obtained and applied to this optimum value for system modeling. Further, a simulation study was performed in order to analyze the hydrodynamics of the two-body FPA system and its power output in the actual operational wave climate. Therefore, this paper has illustrated the application of a hydraulic power take off (PTO) system, giving an integrated pattern for modeling and designing of a wave energy converter system which is based on the hydrodynamic, hydraulic and structural dynamic fields. The results indicated that this modified system is optimal.
延伸閱讀
- Liu, H. H. (2013). A Study on Integration of Energy Harvesting System and Semi-Active Control for a Hydraulic Suspension System [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2013.00406
- 蔡孟翰（2011）。Design of Adaptive Speed and Resistance Estimators for Direct Torque Control System of Induction Motor.〔碩士論文，國立臺北科技大學〕。華藝線上圖書館。https://doi.org/10.6841/NTUT.2011.00215
- Cho, T. W., Lin, C. W., Gong, R. C., & Li, K. (2015). Design, Development and Evaluation of an Energy-Harvesting Electromagnetic Shock Absorber. Proceedings of the 14th IFToMM World Congress, (), 544-551. https://doi.org/10.6567/IFToMM.14TH.WC.PS19.003
- Qi, J., Sun, Q., Wu, X., Wang, C., & Chen, L. (2015). Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis. Journal of Electrical and Computer Engineering, 2015(), 234-250. https://doi.org/10.1155/2015/367302
- 林文宇（2019）。Design and Analysis of a Bi-directional Vortex-induced Vibration Energy Harvester〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201901496