Ocean wave converters: State of the art and current status

Lagoun, M. S.; Benalia, Atallah; Benbouzid, Mohamed

doi:10.1109/energycon.2010.5771758

Cited by 47 publications

(29 citation statements)

References 10 publications

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“…Similar to the wind energy, the wave energy can be divided also into classes, for this work only eight intervals being considered [77] denoted from C1 to C8, the first one being associated with a low energy level. The site AM3 exceeds the 60 kW/m limit, which is associated with the class C8, are followed by the site AF3 with a maximum power of 54 kW/m (class C7).…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

“…. From C1 to C7 the energy classes are indicated according to [77], with the mention that the last one (C8) relates the highest energy level. For the wind conditions, a maximum value of 62.12% is reported by AS1, followed by 49.91% for AF1, while for the waves a maximum of 90.57% is accounted by AS5 and a minimum of 17.57% is associated to AM3.…”

Section: Discussion Of the Resultsmentioning

confidence: 99%

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Joint Evaluation of the Wave and Offshore Wind Energy Resources in the Developing Countries

Rusu

Onea

2017

Energies

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Abstract:The objective of the present work is to assess the global wind and wave resources in the vicinity of some developing countries by evaluating 16-year of data (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016), coming from the European Centre for Medium range Weather Forecast (ECMWF). Until now, not much work has been done to evaluate and use the renewable energy sources from these marine environments. This is because most of the attention was focused on more promising areas, such as the European coasts, which are more advanced in terms of technical and economical aspects. A general perspective of the current energy market from the selected target areas is first presented, indicating at the same time the progresses that have been reported in the field of the renewable energy. Besides the spatial and seasonal variations of the marine resources considered, the results also indicate the energy potential of these coastal environments as well as the performances of some offshore wind turbines, which may operate in these regions.

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Section: Discussion Of the Resultsmentioning

confidence: 99%

Section: Discussion Of the Resultsmentioning

confidence: 99%

Joint Evaluation of the Wave and Offshore Wind Energy Resources in the Developing Countries

Rusu

Onea

2017

Energies

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“…However, the problem in the use of PI controllers is gains tuning and DFIG terms cross-coupling in the whole operating range. There are many interesting methods to solve these problems have been presented in [6][7][8][9][10][11][12][13][14][15]. In the last reference, we have we applied a ModelBased Predictive Control (MBPC) strategy for DFIG-based wave energy converters with the main objective to solve the above-cited control problems.…”

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confidence: 99%

“…Therefore, most devices can be characterized as belonging to six types. These are attenuator, point absorber, oscillating wave surge converter, oscillating water column, overtopping device, and submerged pressure differential [4][5]. In all WECs, a mechanical interface is used to convert the slow rotational speed or reciprocating motion into high speed rotational motion for connection conventional rotating electrical generator as a DFIG (Fig.…”

mentioning

confidence: 99%

A predictive power control of Doubly fed induction generator for wave energy converter in irregular waves

Lagoun

Benalia

Benbouzid

2014

2014 First International Conference on Green Energy ICGE 2014

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In last decades, renewable energy resources are considered as an alternative energy resource to the World's excessive energy demand. An extremely abundant and promising source of energy exists in oceans. Currently, there are several wave energy converters to harness this energy. Some of them, as in tidal applications, use the Doubly-fed induction generator. This paper deals then with a predictive power control of this generator based Wave Energy Converter under irregular wave climate which is modeled as time series elevation from using Bretschneider spectra. In the proposed control approach, the predicted output power was calculated using a linearized statespace model. The DFIG-based WEC power tracking performances further illustrates the dynamic features of the proposed predictive power control approach.

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“…Fonte: [7] Esse sistema é parecido com uma cobra gigante. Possui quatro estágios e três módulos de potência com capacidade de 250KW cada e, sendo assim, cada Pelamis Fonte: [7] Diversos WECs operando em conjunto, como estruturas Pelamis ou Aquabuoy combinadas, formam uma fazenda de ondas.…”

Section: Figura 16 -Conversor Pelamis Wave Power Ltdunclassified

Geração de energia elétrica por ondas marinhas gerenciadas por microcontroladores.

Kawano¹

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The aim of this work is the constructions of an electrical power generation system for use in remote locations, having primary source of energy from sea waves.At a first step were carried out studies and analyzes of the main important parameters for the generation of electricity and electronics power consumption data.This system was used to collect and store data that guide the development of pumps and turbines for generating electricity. Various electronics applications were also used to evaluate the total electricity was required and were studied to improve their performance like notebooks or conventional refrigerators.A microcontroller was employed and several sensors placed at strategic points in the power generation energy system and the data stored in the memory card during the development period.Pressure sensors, flow, amplitude of waves, wind direction, temperature and various electrical sensors (voltage and current in AC and DC) that were used to obtain numerical values for analysis of conversion into electrical energy, water flow and other important parameters for further improvement the initial project.The data were stored on SD memory card of 16 G bytes. A water pump driven by ocean sea waves was made. This work has taken place in Ilha do Arvoredo, in Guarujá, SP, where the electricity was generated using diesel engines. The water is pumped until 30 meters high and stored in a tank with 20.000 liters. This stored water goes directly to the turbine by a pressure system control and generate an electrical power output up to 200 W.When not require, the exceeding water can also be used for marine animals nurseries.Most materials that were used in manufacturing of the equipment is recyclable materials reducing the cost of the project.The final project will be available to poor communities that need electricity in remote locations. Usually the fish achieved near isolated islands are salted to be maintained for lack of refrigeration.

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Ocean wave converters: State of the art and current status

Cited by 47 publications

References 10 publications

Joint Evaluation of the Wave and Offshore Wind Energy Resources in the Developing Countries

Joint Evaluation of the Wave and Offshore Wind Energy Resources in the Developing Countries

A predictive power control of Doubly fed induction generator for wave energy converter in irregular waves

Geração de energia elétrica por ondas marinhas gerenciadas por microcontroladores.

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