Power recovery method for testing the efficiency of the ECD of an integrated generation unit for offshore wind power and ocean wave energy

2017 ◽  
Vol 60 (3) ◽  
pp. 333-344 ◽  
Author(s):  
WeiXing Chen ◽  
Feng Gao ◽  
XiangDun Meng ◽  
AnYe Ren ◽  
Yan Hu
Keyword(s):  
Wind Power ◽  
Wave Energy ◽  
Ocean Wave ◽  
Offshore Wind ◽  
Recovery Method ◽  
Offshore Wind Power ◽  
Ocean Wave Energy ◽  
Power Recovery ◽  
Generation Unit

The Principle of an Integrated Generation Unit for Offshore Wind Power and Ocean Wave Energy

2017 ◽  
Author(s):  
Weixing Chen ◽  
Feng Gao
Keyword(s):  
Wind Power ◽  
Wave Energy ◽  
Degrees Of Freedom ◽  
Mechanical Energy ◽  
Ocean Wave ◽  
Offshore Wind ◽  
Offshore Wind Power ◽  
Ocean Wave Energy ◽  
Energy Conversion Devices ◽  
Generation Unit

Energy resources of offshore wind and ocean wave are clean, renewable and abundant. Various technologies have been developed to utilize the two kinds of energy separately. This paper presents the principle of an integrated generation unit for offshore wind power and ocean wave energy. The principle of the unit includes that: The wind rotor with retractable blades and the 3-DOF (degrees of freedom) mechanism with the hemispherical oscillating body are used to collect the irregular wind and wave power, respectively; The energy conversion devices (ECDs) are utilized to convert mechanical energy from both the wind rotor and the 3-DOF mechanism into hydraulic energy; The hydraulic energy is used to drive the hydraulic motors and electrical generators to produce electricity. Some analyses and experiments of the unit is conducted.

W2P: A high-power integrated generation unit for offshore wind power and ocean wave energy

2016 ◽  
Vol 128 ◽  
pp. 41-47 ◽  
Author(s):  
Weixing Chen ◽  
Feng Gao ◽  
Xiangdun Meng ◽  
Bin Chen ◽  
Anye Ren
Keyword(s):  
Wind Power ◽  
Wave Energy ◽  
High Power ◽  
Ocean Wave ◽  
Offshore Wind ◽  
Offshore Wind Power ◽  
Ocean Wave Energy ◽  
Generation Unit

An offshore hydraulic wind turbine generator with variable-diameter rotor: Design, modeling and experiment

2016 ◽  
Vol 231 (2) ◽  
pp. 521-532 ◽  
Author(s):  
Weixing Chen ◽  
Feng Gao ◽  
Xiangdun Meng ◽  
Anye Ren ◽  
Songlin Zhou
Keyword(s):  
Energy Conversion ◽  
Wind Turbine ◽  
Wind Power ◽  
Offshore Wind ◽  
Speed Ratio ◽  
Turbine Generator ◽  
Recovery Method ◽  
Offshore Wind Power ◽  
Wind Turbine Generator ◽  
Variable Diameter

Offshore wind power is more abundant and stronger than the onshore, and more and more research enthusiasms have been raised in recent years. However, there are still many issues in the utilization of the offshore wind power such as the cost of installations and maintenance and the ability to resist extreme weather conditions. In this article, an offshore hydraulic wind turbine generator with variable-diameter rotor is presented. The diameter of the rotor can be regulated according to the wind speeds to achieve the maximum power coefficient. The hydraulic energy working as the transmission medium can improve the output power quality. The high-speed gearbox is removed, and the generator is installed on the platform, which facilitates the installations and maintenance. Here, the power conversion principle of the wind turbine generator was introduced first. Then, the dynamics and performance of the wind turbine generator was obtained. The relationship between the diameter of the rotor and the wind speed was established according to the dynamics and the optimum tip-speed ratio. Relying on the specific parameters, the dynamic response was calculated in Simulink. The results show that the instantaneous output of the wind turbine generator is relatively stable. Based on the power recovery method, the test platform was built, and the efficiency of the energy conversion device was tested. The experimental results demonstrate that the efficiency of the energy conversion device can be 88%. Finally, the total efficiency of the offshore hydraulic wind turbine generator was predicted to be 33.7%.

Optimal siting of offshore wind-power combined with wave energy through a marine spatial planning approach

2013 ◽  
Vol 3-4 ◽  
pp. e11-e25 ◽  
Author(s):  
Arianna Azzellino ◽  
Vincenzo Ferrante ◽  
Jens Peter Kofoed ◽  
Caterina Lanfredi ◽  
Diego Vicinanza
Keyword(s):  
Wind Power ◽  
Wave Energy ◽  
Spatial Planning ◽  
Offshore Wind ◽  
Marine Spatial Planning ◽  
Offshore Wind Power ◽  
Planning Approach

Dam-Atoll for concentration and conversion of ocean wave energy

1981 ◽  
Author(s):  
T. HIGGINS ◽  
C. SHERBURNE
Keyword(s):  
Wave Energy ◽  
Ocean Wave ◽  
Ocean Wave Energy

Ocean Wave Energy Harvesting Devices

2008 ◽  
Author(s):  
Jeffrey T. Cheung ◽  
Earl F. Childress III
Keyword(s):  
Energy Harvesting ◽  
Wave Energy ◽  
Ocean Wave ◽  
Ocean Wave Energy ◽  
Energy Harvesting Devices

scholarly journals Scenarios for offshore wind power production for Central California Call Areas

Wind Energy ◽  
2021 ◽  
Author(s):  
Yi‐Hui Wang ◽  
Ryan K. Walter ◽  
Crow White ◽  
Matthew D. Kehrli ◽  
Benjamin Ruttenberg
Keyword(s):  
Wind Power ◽  
Power Production ◽  
Offshore Wind ◽  
Central California ◽  
Offshore Wind Power
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