scholarly journals Optimal Control of a Three-Body Hinge-Barge Wave Energy Device Using Pseudospectral Methods

2017 ◽  
Vol 8 (1) ◽  
pp. 200-207 ◽  
Author(s):  
Francesco Paparella ◽  
John V. Ringwood
Keyword(s):  
Optimal Control ◽  
Wave Energy ◽  
Pseudospectral Methods ◽  
Energy Device ◽  
Three Body

scholarly journals Modelling of a Three-Body Hinge-Barge Wave Energy Device Using System Identification Techniques

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5129
Author(s):  
Fernando Jaramillo-Lopez ◽  
Brian Flannery ◽  
Jimmy Murphy ◽  
John V. Ringwood
Keyword(s):  
Experimental Data ◽  
System Identification ◽  
Wave Energy ◽  
Dynamic Models ◽  
Linear Time ◽  
Renewable Energy Sources ◽  
Linear Potential ◽  
Energy Device ◽  
Three Body ◽  
Identification Techniques

In order to increase the prevalence of wave energy converters (WECs), they must provide energy at competitive prices, especially when compared with other renewable energy sources. Thus, it is imperative to develop control system technologies that are able to maximize energy extraction from waves, such that the delivered energy cost is reduced. An important part of a model-based controller is the model that it uses. System identification techniques (SITs) provide methodologies to get accurate dynamic models from input-output data. However, even though these techniques are well developed in other application areas, they are seldom used in the context of WECs. This paper proposes several strategies based on SIT to get a linear time-invariant model for a three-body hinge-barge wave energy device using experimental data. The main advantage of the model obtained with this methodology, against other methods such as linear potential theory, is that this model remains valid even for relatively large waves and WEC displacements. Other advantages of this model are its simplicity and the low computational resources that it needs. Numerical simulations are carried out to show the validation of the obtained model against recorded experimental data.

Black-box modelling of a three-body hinge-barge wave energy device via forces responses

2020 ◽  
pp. 231-237
Author(s):  
F. Jaramillo-Lopez ◽  
J. Ringwood* ◽  
B. Flannery ◽  
J. Murphy
Keyword(s):  
Wave Energy ◽  
Black Box ◽  
Energy Device ◽  
Three Body

Wave tank experiments on the power capture of a float-type wave energy device with a breakwater

2018 ◽  
Vol 10 (5) ◽  
pp. 054501 ◽  
Author(s):  
Wei Peng ◽  
Rui He ◽  
Jisheng Zhang ◽  
Tiaojian Xu
Keyword(s):  
Wave Energy ◽  
Energy Device ◽  
Wave Tank ◽  
Type Wave ◽  
Power Capture

Adaptive damping power take-off control for a three-body wave energy converter

2013 ◽  
Author(s):  
Zhe Zhang ◽  
Ted Brekken ◽  
Ken Rhinefrank ◽  
Al Schacher ◽  
Joe Prudell ◽  
...  
Keyword(s):  
Wave Energy ◽  
Body Wave ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
Three Body
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