Analytical study of the interaction between waves and cylindrical wave energy converters oscillating in two modes

Liu

Polish Maritime Research

et al. 2016

Section: Introductionmentioning

confidence: 91%

Optimal Configurations of Wave Energy Converter Arrays with a Floating Body

Liu

Polish Maritime Research

et al. 2016

“…This phenomenon make complexity in every modeling and so the management of the wave farm. In order to in socio-economic scenario, the machine price of the total setup unit is usually refractory for real time operations [5].…”

Section: Factors Which Impacts On the Park Effect Regarding Posimentioning

confidence: 99%

Identification of Park Effect Probability in Wave Energy Conversion System using Multi Criteria Decision Making Method (AHP) and Neural Network Model (GMDH Shell)

Saha,

Majumder,

Pal

2019

IJEAT

The present research work demonstrates the trend of Park Effect to the Wave Energy Conversion system or in wave energy converter. The Park Effect occurred due to various reasons in a real field application of Wave Energy Conversion. Park Effect occurred in wind energy as well as wave energy. All possible factors are considered to find out the Park Effect. To analyze the Park Effect probability, Analytical Hierarchy Process (AHP) is used, from the result a model is generated through Neural Network software named GMDH Shell. There are significant uncertainties arising in particular from the lack of field tested result to calculate the Park Effect proximity on the devices. However, applying various hypotheses for design and physical parameters, it was found that the benefits of Park Effect influenced factors are all non-beneficiary to Park Effect trend. After all the calculations it can predict the proximity of the Park Effect in a Wave Energy Conversion system.

“…Modeling of WEC complex dynamics can be achieved by different methods. The potential flow theory is often used to find hydrodynamic properties of the buoys [18,19]. This method has been widely in use since 1974, due to its relative simplicity and time efficiency [20].…”

Section: Introductionmentioning

confidence: 99%

Wave Energy Converter’s Slack and Stiff Connection: Study of Absorbed Power in Irregular Waves

et al. 2021

Two different concepts of wave energy converter coupled to the novel C-GEN linear generator have been studied numerically, including the evaluation of different buoy sizes. The first concept has a slack connection between the buoy and the generator on the seabed. Another concept is based on a stiff connection between the buoy and the generator placed on an offshore platform. Three different approaches to calculate the damping force have been utilized within this study: the optimal damping coefficient, R-load, and RC-load. R-load is a model for the load applied to a grid-connected generator with passive rectification. RC-load is a model for a phase angle compensation applied to a system with active rectification. The radiation forces originating from the oscillatory motion of the buoy have been approximated using the transfer function in the frequency domain and the vector fitting algorithm. A comparison of the approximation methods is presented, and their accuracy has been evaluated. The advantage of the vector fitting method has been shown, especially for higher approximation orders which fit the transfer function with high accuracy. The study’s final results are shown in terms of the absorbed power for the sea states of March 2018 at Wave Hub, UK.