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Academic literature on the topic 'Pendulum Wave Energy Converter'

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Published: 14 March 2023

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Journal articles on the topic "Pendulum Wave Energy Converter"

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Aminuddin, Jamrud, Mukhtar Effendi, Nurhayati Nurhayati, Agustina Widiyani, Pakhrur Razi, Wihantoro Wihantoro, Abdullah Nur Aziz, et al. "Numerical Analysis of Energy Converter for Wave Energy Power Generation-Pendulum System." International Journal of Renewable Energy Development 9, no. 2 (April 20, 2020): 255–61. http://dx.doi.org/10.14710/ijred.9.2.255-261.

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The wave energy power generation-pendulum system (WEPG-PS) is a four-wheeled instrument designed to convert wave power into electric energy. The first wheel is connected to the pendulum by a double freewheel, the second and third are ordinary wheels, while the fourth is a converter component that is axially connected to the electric generator. This design used the Euler-Lagrange formalism and Runge-Kutta method to examine an ideal dimension and determine the numerical solution of the equation of motion related to the rotation speed of the wheels. The result showed that the WEPG-PS' converter system rotated properly when its mass, length, and moment of inertia are 10 kg, 2.0 m, and 0.25 kgm2, respectively. This is in addition to when the radius of the first, second, third, and fourth wheels are 0.5, 0.4, 0.2, and 0.01 m, with inertia values of 0.005, 0.004, 0.003, and 0.1 kgm2. The converter system has the ability to rotate the fourth wheel, which acts as the handle of an electric generator at an angular frequency of approximately 500 - 600 rad/s. The converter system is optimally rotated when driven by a minimum force of 5 N and maximum friction of 0.05. Therefore, the system is used to generate electricity at an amplitude of 0.3 - 0.61 m, 220 V with 50 Hz. Besides, the lower rotation speed and frequency of the energy converter of the WEPG-PS (300 rad/s) and induction generator (50 Hz) were able to generate electric power of 7.5 kW. ©2020. CBIORE-IJRED. All rights reserved
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Nicola, Pozzi, Bracco Giovanni, Passione Biagio, Sirigu Sergej Antonello, Vissio Giacomo, Mattiazzo Giuliana, and Sannino Gianmaria. "Wave Tank Testing of a Pendulum Wave Energy Converter 1:12 Scale Model." International Journal of Applied Mechanics 09, no. 02 (March 2017): 1750024. http://dx.doi.org/10.1142/s1758825117500247.

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Wave Energy is a widespread, reliable renewable energy source. The early study on Wave Energy dates back in the 70’s, with a particular effort in the last and present decade to make Wave Energy Converters (WECs) more profitable and predictable. The PeWEC (Pendulum Wave Energy Converter) is a pendulum-based WEC. The research activities described in the present work aim to develop a pendulum converter for the Mediterranean Sea, where waves are shorter, thus with a higher frequency compared to the ocean waves, a characteristic well agreeing with the PeWEC frequency response. The mechanical equations of the device are developed and coupled with the hydrodynamic Cummins equation. The work deals with the design and experimental tank test of a 1:12 scale prototype. The experimental data recorded during the testing campaign are used to validate the numerical model previously described. The numerical model proved to be in good agreement with the experiments.
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Hantoro, Ridho, Erna Septyaningrum, Yusuf Rifqi Hudaya, and I. Ketut Aria Pria Utama. "STABILITY ANALYSIS FOR TRIMARAN PONTOON ARRAY IN WAVE ENERGY CONVERTER – PENDULUM SYSTEM (WEC - PS)." Brodogradnja 73, no. 3 (July 1, 2022): 59–68. http://dx.doi.org/10.21278/brod73304.

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Ocean waves are a renewable energy source with abundant reserves in Indonesia. With the vast waters of Indonesia, the development of a sea wave power plant needs to be developed. This research focuses on the development of easy-operated and maintained ocean wave converter–pendulum system (OWC – PS). The numerical simulation and experimental analysis were conducted to obtain the relation between the motion response of the pontoon array and its pendulum. The pontoon used is the trimaran type, which consists of a cylindrical pontoon as the main hull and two outriggers on its side. This study analyses the most stable array arrangement that produces maximum pitching motion and pendulum deviation. The simulation results show that the largest pitching value is in array 1, i.e., 27.91° for pontoon 1 and 38.92° for pontoon 2, which results in a maximum pendulum deviation of 100 ° for pendulums 1 and 56.2 ° for pendulum 2 over a wave period of 9 seconds. The backward motion of the pendulum in both array configurations tends to have a greater deviation than that of the forward motion. The pendulums of array 1 have different motion characteristics, represented by different deviation values in both pendulums. This phenomenon does not occur in array 2, since both pendulums in array 2 have the same deviation (with only a small discrepancy).
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Yurchenko, Daniil, and Panagiotis Alevras. "Parametric pendulum based wave energy converter." Mechanical Systems and Signal Processing 99 (January 2018): 504–15. http://dx.doi.org/10.1016/j.ymssp.2017.06.026.

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Cao, Shou Qi, Shu Man Fu, and Zi Yue Wu. "Analysis of Hydrodynamic Model of Wave Energy Converter of Inverse Pendulum." Applied Mechanics and Materials 483 (December 2013): 223–28. http://dx.doi.org/10.4028/www.scientific.net/amm.483.223.

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The efficiency analysis of wave energy collection and conversion is crucial for utility of wave energy of inverse pendulum. In the paper, we build the hydrodynamic model of interaction between pendulum and wave in wave energy converter of inverse pendulum. On the basis of this typical model, we choose the actual wave condition of some sea area in the east of China as the background, research the hydrodynamic property of pendulum by numerical simulation with fluent software, get the relation curve of between the rotation angle of pendulum and moment of wave force with time, and acquire energy conversion model from wave energy to mechanical energy in wave energy converter of inverse pendulum. It makes the beneficial exploration for optimal design of wave energy converter of inverse pendulum.
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Zhang, Jun, Chenglong Li, Hongzhou He, and Xiaogang Zang. "Optimization of a Multi-pendulum Wave Energy Converter." Open Electrical & Electronic Engineering Journal 9, no. 1 (March 16, 2015): 67–73. http://dx.doi.org/10.2174/1874129001509010067.

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In order to improve the energy capture efficiency of a multi-pendulum wave energy converter, a mathematical model of the pendulum structure has been built. The final structure parameters of the pendulum have been obtained by using genetic algorithm based on the numerical simulation results of the pendulum structure optimization. The results show that under obtained structure parameters the proposed multi-pendulum device can obtain maximum energy conversion efficiency.
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Qiu, Shou-qiang, Jia-wei Ye, Dong-jiao Wang, and Fu-lin Liang. "Experimental study on a pendulum wave energy converter." China Ocean Engineering 27, no. 3 (June 2013): 359–68. http://dx.doi.org/10.1007/s13344-013-0031-y.

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Arief, I. S., I. K. A. P. Utama, R. Hantoro, J. Prananda, Y. Safitri, T. A. Rachmattra, and F. K. Rindu. "Response to Pontoon and Pendulum Motion at Wave Energy Converter Based on Pendulum System." E3S Web of Conferences 43 (2018): 01022. http://dx.doi.org/10.1051/e3sconf/20184301022.

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Energy conversion technology derived from ocean wave energy has been developed, one of them is the Power Wave sea-Pendulum System (PLTGL-SB). PLTGL composed of a pontoon which is subjected to the excitation force of ocean waves and will move the pendulum on the top of the pontoon. This study aims to analyze the best shape for PLTGL- SB’s pontoon and determine the largest deviation generated due to the movement of the pendulum vertical pontoon. Pontoon shapes studied are pontoon consisting of a large cylinder in the middle and there are two boats on the right and left, like a trimaran ship. Variations were made in this study consisted of variations of length and height boats, the draft height, wave period, the mass and the length of the pendulum arm. Best pontoon shape is determined by simulating the shape of a pontoon with Computational Fluid Dynamic (CFD). Pendulum deviation obtained by mathematical modeling pontoon two degrees of freedom (roll) and pendulum. Based on the chart Response Amplitude Operator (RAO) pontoon shape is best for PLTGL-SB is a pontoon with a 2/3 full large cylinder diameter, 1.5 cm height boats, catamarans length of 41.5 cm. Based on the results of a mathematical model of the largest deviation of the pendulum is generated when the pontoon is placed in the period of 0.8 s, with a mass and pendulum arm lengths are 19.9 g and 10.6 cm.
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Gu, Yu Jiong, Li Jun Zhao, Jing Hua Huang, and Bing Bing Wang. "The Principle, Review and Prospect of Wave Energy Converter." Advanced Materials Research 347-353 (October 2011): 3744–49. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.3744.

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Abstract: Being confronted with the severity of the energy and environment problems, the world attaches more and more importance to the potential of wave energy. Based on the necessity and feasibility of wave power development, the basic principles of wave energy converter are in this paper firstly. Then some kinds of WEC’s principle, merits and drawbacks, technology application are reviewed, such as OWC, raft, Tapchan, point absorber, Salter, pendulum. After that, wave energy developing conditions in some typical countries are recommended. After reviewing the features of various wave energy converters and WEC application examples in some countries, prospect and a few problems in wave energy utilizing are stated briefly.
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Wang, Dong-jiao, Shou-qiang Qiu, and Jia-wei Ye. "Width effects on hydrodynamics of pendulum wave energy converter." Applied Mathematics and Mechanics 35, no. 9 (July 17, 2014): 1167–76. http://dx.doi.org/10.1007/s10483-014-1857-6.

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Dissertations / Theses on the topic "Pendulum Wave Energy Converter"

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POZZI, NICOLA. "Numerical Modeling and Experimental Testing of a Pendulum Wave Energy Converter (PeWEC)." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2708896.

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The research activities described in the present work aims to develop a pendulum converter (PeWEC: Pendulum Wave Energy Converter) for the Mediterranean Sea, where waves are shorter, thus with a higher frequency. In particular, the Pantelleria Island site wave climate is assumed as reference. The research activities started from the preliminary investigation of the working principle validity in the case of the Mediterranean Sea wave characteristics, taking into account a 1:45 scale prototype. The numerical model reliability and the success of experimental tests motivated the design and development of a 1:12 scaled device, useful for a deeper investigation of the technology capabilities and performances. Globally, the technology readiness level (TRL) was increased from 1 to 4. Important effort were focused in the development of a reliable model-based design and optimization methodology for the investigation of a full scale configuration. The latter was widely used to identify a preliminary full scale configuration and to assess the economic viability of the PeWEC technology in the Mediterranean Sea context. Results were benchmarked against the ISWEC pilot plant, deployed in 2015, in Pantelleria Island. One of the major outcomes of this analysis is a detailed overview of the advantages and drawbacks of an active (ISWEC) and a passive (PeWEC) technology, together with some guidelines for the improvement of this technology.
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O'Boyle, Louise. "Wave fields around wave energy converter arrays." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602715.

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Wave energy converters, by their nature, extract large amounts of energy from incident waves. If the industry is to progress such that wave energy becomes a significant provider of power in the future, large wave farms will be required. Presently, consenting for these sites is a long and problematic process, mainly due to a lack of knowledge of the potential environmental impacts. Accurate numerical modelling of the effect of wave energy extraction on the wave field and subsequent evaluation of changes to coastal processes is therefore required. Modelling the wave field impact is also necessary to allow optimum wave farm configurations to be determined. This thesis addresses the need for more accurate representation of wave energy converters in numerical models so that the effect on the wave field, and subsequently the coastal processes, may be evaluated. Using a hybrid of physical and numerical modelling (MIKE21 BW and SW models) the effect of energy extraction and operation of a WEC array on the local wave climate has been determined. The main outcomes of the thesis are: an improved wave basin facility, in terms of wave climate homogeneity, reducing the standard deviation of wave amplitude by up to 50%; experimental measurement of the wave field around WEC arrays, showing that radiated waves account for a significant proportion of the wave disturbance; a new representation method of WECs for use with standard numerical modelling tools, validated against experimental results. The methodology and procedures developed here allow subsequent evaluation of changes to coastal processes and sediment transport due to WEC arrays.
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Du, Plessis Jacques. "A hydraulic wave energy converter." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/19950.

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Thesis (MScEng)--Stellenbosch University, 2012.
ENGLISH ABSTRACT: As a renewable energy source, wave energy has the potential to contribute to the increasing global demand for power. In South Africa specifically, the country’s energy needs may easily be satisfied by the abundance of wave energy at the South-West coast of the country. Commercially developing and utilizing wave energy devices is not without its challenges, however. The ability of these devices to survive extreme weather conditions and the need to achieve cost-efficacy while achieving high capacity factors are but some of the concerns. Constant changes in wave heights, lengths and directions as well as high energy levels and large forces during storm conditions often lead to difficulties in keeping the complexity of the device down, avoiding over-dimensioning and reaching high capacity factors. The point absorber device developed as part of this research is based on an innovation addressing the abovementioned issues. An approach is followed whereby standard "offthe- shelf" components of a proven hydraulics technology are used. The size of the device is furthermore adaptable to different wave climates, and the need for a control system is not necessary if the design parameters are chosen correctly. These characteristics enable low complexity of the device, excellent survivability and an exceptionally high capacity factor. This may lead to low capital as well as low operationand maintenance costs. In this paper the working principle of this concept is presented to illustrate how it utilises the available wave energy in oceans. The results obtained from theoretical tests correlate well with the experimental results, and it is proven that the device has the ability to achieve high capacity factors. As the device makes use of existing, "off-the-shelf" components, cost-efficient energy conversion is therefore made feasible through this research.
AFRIKAANSE OPSOMMING: As ’n hernubare/ herwinbare energiebron bied golfenergie die potensiaal om by te dra tot die bevrediging van die stygende globale energie-navraag. In spesifiek Suid-Afrika kan die oorvloed van beskikbare golfenergie aan die Suid-Weskus van die land gebruik word om aan die land se energiebehoeftes te voldoen. Betroubaarheid en oorlewing in erge weerstoestande, koste-effektiwiteit en die behaal van hoë kapasiteitsfaktore is beduidende struikelblokke wat oorkom moet word in die poging om ’n golfenergie-omsetter wat kommersieël vervaardig kan word, te ontwikkel. Daarby dra voortdurende veranderings in golfhoogtes, -lengtes en -rigtings sowel as hoë energievlakke en groot kragte tydens storms by to die feit dat dit moeilik is om die kompleksiteit van die stelsel laag te hou. Dit terwyl daar voorkom moet word dat die toestel oorontwerp en verhoed word dat hoë kapsiteitsfaktore bereik word. Die puntabsorbeerder-toestel wat in hierdie navorsing ontwikkel is, bestaan uit ’n ontwerp wat spesifiek ontwikkel is om die bogenoemde probleme aanspreek. ’n Unieke benadering is gevolg waardeur standaard, maklik-bekombare komponente gebruik is en die komponent-groottes ook aangepas kan word volgens golfgroottes. Indien die ontwerpsdimensies akkuraat gekies word, is die moontlikheid verder goed dat ’n beheerstelsel nie geïmplementeer hoef te word nie. Hierdie eienskappe verseker lae stelselkompleksiteit, uitstekende oorlewingsvermoë en ’n uitstaande kapasiteitsfaktor. Lae kapitaal- sowel as onderhoudskostes is dus moontlik. Die doel van hierdie dokument is om die werking van die konsep voor te stel en teoreties sowel as prakties te evalueer. Die resultate van teoretiese toetse stem goed ooreen met eksperimentele resultate, en dit is duidelik dat die toestel hoë kapasiteitsfaktore kan behaal. Aangesien die toestel verder gebruik maak van bestaande komponente wat alledaags beskikbaar is, word die koste-effektiewe omsetting van golfenergie dus moontlik gemaak deur hierdie navorsing.
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Salar, Dana. "Miniature Wave Energy Converter (WEC)." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-366760.

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Abstract     In this project, I present a design of a scale model of a linear generator (LG) similar to a full size Wave Energy Converter (WEC) being developed at Uppsala University since 2002 and commercialized by Seabased AB. The purpose of a WEC is to convert the energy from ocean waves into electrical energy. In order to implement the behaviour of the prototype design, a preliminary study has been done to further build it for use in education, laboratory tests and research. The challenge with this project is to scale down the WEC but maintain the shape, appearance and characteristics of the generator for educational purposes. A miniature version of a WEC, previously developed by Uppsala University in collaboration with Seabased Industry AB, has been designed with scaling rate 1:14 of the linear dimensions. In this case, the value of the output power is not important- it has simply been calculated. The electrical rated parameters of the three phase generator are power  26 W,  peak line-line voltage  13 V and  rated armature current  2 A. The mechanical parameters utilized in the design are the total length and the diameter of the miniature WEC, 50 cm and 25 cm, respectively. The simulated prototype model (described in Section 5.4) has been validated with an experimental setup comprising translator and stator (described in Section 5.1), where the translator is moved by a programmed industrial robot. The experimental results have shown good agreement with the simulations.
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Xu, Xu. "Nonlinear dynamics of parametric pendulum for wave energy extraction." Thesis, University of Aberdeen, 2005. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=189414.

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A new concept, extracting energy from sea waves by parametric pendulor, has been explored in this project. It is based on the conversion of vertical oscillations to rotational motion by means of a parametrically-excited pendulor, i.e. a pendulum operating in rotational mode. The main advantage of this concept lies in a direct conversion from vertical oscillations to rotations of the pendulum pivot. This thesis, firstly, reviewed a number of well established linear and nonlinear theories of sea waves and Airy’s sea wave model has been used in the modelling of the sea waves and a parametric pendulum excited by sea waves. The third or fifth order Stokes’s models can be potentially implemented in the future studies. The equation of motion obtained for a parametric pendulum excited by sea waves has the same form as for a simple parametrically-excited pendulum. Then, to deepen the fundamental understanding, an extensive theoretical analysis has been conducted on a parametrically-excited pendulum by using both numerical and analytical methods. The numerical investigations focused on the bifurcation scenarios and resonance structures, particularly, for the rotational motions. Analytical analysis of the system has been performed by applying the perturbation techniques. The approximate solutions, resonance boundary and existing boundary of rotations have been obtained with a good correspondence to numerical results. The experimental study has been carried out by exploring oscillations, rotations and chaotic motions of the pendulum.
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BRACCO, GIOVANNI. "ISWEC: a Gyroscopic Wave Energy Converter." Doctoral thesis, Politecnico di Torino, 2010. http://hdl.handle.net/11583/2562362.

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ISWEC (Inertial Sea Wave Energy Converter) is a Wave Energy Converter transforming the wave-induced rocking motion of a buoy into electrical power by means of the gyroscopic effects produced from a spinning flywheel carried inside the buoy. A unique feature of ISWEC with respect to most of the existing converters is that externally it is composed only of a floating body without moving parts working into sea water or spray, thus achieving a high reliability and reduced maintenance costs. In this Thesis the analysis of the ISWEC both on the numerical and the experimental levels is performed. The converter dynamics is analyzed in order to obtain a mathematical model and experimental tests are carried out in the wave tank of the University of Edinburgh on a 1:45 model to validate such mathematical model. The validated models are used to design a larger scale prototype (1:8) and to make considerations on the design of a full scale ISWEC system.
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Price, Alexandra A. E. "New perspectives on wave energy converter control." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3109.

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This work examines some of the fundamental problems behind the control of wave energy converters (WECs). Several new perspectives are presented to aid the understanding of the problem and the interpretation of the literature. The first of these is a group of methods for classifying control of WECs. One way to classify control is to consider the stage of power transfer from the wave to the final energy carrier. Consideration of power transfer can also be used to classify WECs into families. This approach makes it possible to classify all WECs, including those that had previously eluded classification. It also relates the equations of motion of different classes of WECs to a generalised equation of motion. This in turn clarifies why some types of control are suited to some WECs, but not others. These classification systems are used to demarcate the boundary for the theoretical work that follows. The theory applies to WECs with governing equations of motion that are linear, and to control systems that are linear, aim to maximise power, and which regulate the PTO stage of power flow. Another important perspective is the new wet and dry oscillator paradigm, which is used to differentiate between frequency domain modelling and a commonly used technique, monochromatic modelling. This distinction is necessary background for many of the new ideas discussed. It is used to resolve an ongoing debate in wave energy research: whether frequency domain modelling can be applied to cases that are not monochromatic. It is the key to an extension to the theory of capture width, a widely used performance indicator. This distinction is also the rationale behind an improved method of presenting frequency domain results: the frequency responses due to both monochromatic and polychromatic forcing are represented on the same graph. These responses are different because the optimal control problem is acausal, a topic that is also discussed in depth. This visual tool is used to investigate and confirm various ideas about the control of WECs, and to demonstrate how the newly redefined capture width encapsulates the essential control problem of WECs. The optimal control problem is said to be acausal because information about the future is required to achieve optimal control. Another vantage point offered is that of the duration of the prediction interval required for optimal control. This is given by a new parameter emerging from this work, which has been termed the premonition time. The premonition time depends on the amount of knowledge required, which is determined by the geometry of the WEC, and the amount of information available, which is largely determined by the bandwidth of the sea state. The new perspectives introduced are the various systems of classification, the wet and dry oscillator paradigm, the presentation of monochromatic and polychromatic results on the same axes, premonition time, and the revised theory on capture width. These are all used to discuss the interrelationship between WEC geometry, the control strategy and the sea-state. The opportunities for, and limitations of, the use of intelligent control techniques such as artificial neural networks are discussed. The potential contribution of various control strategies and associated design principles is explored. This discussion culminates in a series of recommendations for control strategies that are suited to each class of WEC, and for the areas of research that have the potential to bring about the greatest reductions in the cost of harnessing energy from sea waves.
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Ljungbäck, Jacob. "Characterization of Cascade gearbox for wave energy converter." Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-182811.

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This Master Thesis, written in collaboration with CorPower Ocean, serves as the finalization of the author’s master degree education at KTH (Royal Institute of Technology) Stockholm. The purpose has been to characterize the Cascade gearbox which is used to convert vertical motion induced by waves to rotational motion which powers generators in the company’s future wave energy power plant. The purpose was also to suggest future improvements and shed light on any problems discovered. The method for characterizing the Cascade gearbox was to conduct physical measurements of the load sharing in the inherently overdetermined geometrical design. These data were then used to calibrate a static as well as a dynamic model also developed for this thesis. Focus has been on determining that the novel load sharing method is sufficient and that no gear takes more than the 2,5% overload during max load the gearbox is dimensioned for at any time. Also included in the thesis is an analysis of the tolerances effect on the performance of the Cascade gearbox. Results showed that the current design perform within the expected dimensioning limits. However some unexpected characteristics were discovered after analysis of the results. Because of deliberate geometric decisions half of the gears trail behind initially in one direction causing uneven load sharing and unwanted lateral forces on the rack. Also discovered was the importance of equal stiffness of the flex units, used to divide the load evenly between the gears, since the load sharing factor converges towards values directly proportional to the stiffness ratios in between them. As a conclusion it can be said that although the current design is sufficient, there is still room for improvements which could enhance life expectancy as well as load sharing performance of the Cascade gearbox.
Detta examensarbete utfört i samarbete med CorPower Ocean, är det slutgiltiga steget i författarens utbildning på masternivå på KTH (Kungliga Tekniska Högskolan) Stockholm. Syftet med arbetet är att karakterisera en kaskadväxellåda som används för att omvandla vertikal rörelse från vågor till rotation som driver generatorer i företagets framtida vågkraftverk samt att utifrån resultat föreslå möjliga förbättringar och belysa eventuella problem. Den metod som använts för att karakterisera kaskadväxellådan var att via fysiska mätningar, på den testrigg placerad på KTH (Kungliga Tekniska Högskolan) i Stockholm, erhålla data för lastfördelningen i den geometriskt överbestämda konstruktionen. Dessa data användes sedan för att kalibrera en statisk och en dynamisk modell som också utvecklades för det här projektet. Huvudfokus för arbetet har legat i att ta reda på om den konstruktion som används för att fördela lasten mellan kugghjulen fungerar tillfredställande samt att säkerställa att inget kugghjul tar mer än de 2,5% överlast vid fullast växellådan är dimensionerad för vid något tillfälle. Examensarbetet inkluderar även feltoleransers inverkan på lastfördelningen i kaskadväxeln. Resultaten visade att den nuvarande konstruktionen presterar inom de specificerade dimensioneringsintervallen. Några oväntade karaktärsdrag upptäckdes dock vid analys av resultaten. På grund av en avsiktlig geometrisk oregelbundenhet släpade hälften av kugghjulen efter åt ena hållet vilket i sin tur resulterade i en ojämn lastfördelning och oönskade sidokrafter på kuggracken. Flexenheterna som används för att fördela lasten likvärdigt mellan kugghjulen skilde sig åt i styvhet. Den inverkan spridningen av dessa har på lastfördelningen belystes också eftersom lastfördelningen konvergerar mot värden direkt proportionella mot styvhetsförhållandet mellan dem. Slutsatsen från examensarbetet är att den nuvarande konstruktionen, även om den fungerar tillfredställande, lämnar utrymme för förbättringar som potentiellt kan förbättra både livslängd och lastfördelningsprestanda.
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Gastelum, Zepeda Leonardo. "Life Cycle Assessment of a Wave Energy Converter." Thesis, KTH, Industriell ekologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-206486.

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Renewable energies had accomplish to become part of a new era in the energy development area, making people able to stop relying on fossil fuels. Nevertheless the environmental impacts of these new energy sources also require to be quantified in order to review how many benefits these new technologies have for the environment. In this project the use of a Life Cycle Assessment (LCA) will be implemented in order to quantify the environmental impact of wave energy, an LCA is a technique for assessing various aspects with the development of a product and its potential impact throughout a product’s life (ISO 14040, 1997). Several renewables have been assessed for their environmental impact using this tool (wind power, biofuels, photovoltaic panels, among others). This project will be focused on the study of wave power, specifically devices called point absorbers.At the beginning this thesis offers a description of the Life Cycle Assessment methodology with a brief explanation of each steps and requirements according to the ISO 14000 Standard. Later a description of different wave energy technologies is explained, along with the classification of different devices depending on its location and its form of harvesting energy. After explaining the different types available at the moment, the thesis will focus on the point absorber device and explain an approach that can be taken in order to simplify the complexity of the whole system.Once the device is fully explained the thesis approaches the methodology pursued in order to evaluate the system in terms of environmental impact in the selected category, for this case global warming. After, an evaluation of the different modules from the wave energy converter in terms of its environmental impact and choosing the best conditions in order to reduce it has being done.At the end of the thesis an economical overview of building wave energy converters is considered among its monetized cost to the environment and a comparison of this new technologies among other renewables in the market is done, in order to have an overview of the potential this type of energy can have.The main research question to be answered by this master thesis is how competitive is wave energy among other renewable technologies available at the moment. Since at the moment wave energy is in its early stages a representation of how other renewables had advanced from its early stages until today is presented, and the potential of this type of energy is evaluated in environmental and economic figures showing competitive results that can further be improved.
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Magagna, Davide. "Oscillating water column wave pump : a wave energy converter for water delivery." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/349009/.

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The research presented in this dissertation investigates the development and the performances of a new type of Wave Energy Converter (WEC) aimed to provide water delivery and energy storage in the form of potential energy. The Oscillating Water Column Wave Pump (OWCP) concept was proposed and tested through a series of experimental investigations supported by scientific theory. The OWCP was developed after an extensive study of the existing wave energy technology available, from which it emerged that the Oscillating Water Column (OWC) device could be further implemented for water delivery purposes. The existing theory of the OWC was employed to develop a mathematical theory able to describe the system wave response and water removal of the OWCP. In order to understand and validate the mathematical models of the OWCP, experimental investigations were carried out under the influence of incident linear waves in a two-dimensional (2D) and three-dimensional (3D) wave flume. The experimental equipment and methodology are outlined, including the description of wave flumes, models and data acquisition equipment. Experimental tests were used to verify the concept of the OWCP and assess its performances, investigating both the response of the device to the waves with and without water removal. In order to increase the efficiencies of delivery, array configurations of multiple OWCPs were adopted. The research demonstrated that up to 14% of the energy carried by the incoming waves can be converted into useful potential energy for a single device. Moreover a further increase of the efficiencies can be obtained with the array configuration improving the overall capability of the OWCP, for optimal separation distance between the array components. Further model tests are required to extended this research to validate the developed mathematical models as an effective prediction tool of the performances of the OWCP and further increase the efficiency of water removal that can be achieved.
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Books on the topic "Pendulum Wave Energy Converter"

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Folley, Matt. Numerical Modelling of Wave Energy Converters: State-Of-the Art Techniques for Single WEC and Converter Arrays. Elsevier Science & Technology Books, 2016.

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Book chapters on the topic "Pendulum Wave Energy Converter"

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Zhu, Shenglin, Shaohui Yang, Hui Li, Yan Huang, Zhichang Du, Jianyu Fan, and Zhonghua Lin. "Triboelectric Nanogenerator Based on Pendulum Plate Wave Energy Converter." In Advanced Manufacturing and Automation XII, 406–12. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9338-1_50.

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Chandrasekaran, Srinivasan, Faisal Khan, and Rouzbeh Abbassi. "Floating Wave Energy Converter." In Wave Energy Devices, 61–142. New York: CRC Press, 2022. http://dx.doi.org/10.1201/9781003281429-3.

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Chandrasekaran, Srinivasan, Faisal Khan, and Rouzbeh Abbassi. "Double-Rack Mechanical Wave Energy Converter." In Wave Energy Devices, 143–202. New York: CRC Press, 2022. http://dx.doi.org/10.1201/9781003281429-4.

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Folley, Matt, and Trevor Whittaker. "Identifying Promising Wave Energy Converter Technologies." In Renewable Energy in the Service of Mankind Vol I, 279–89. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17777-9_26.

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Bergillos, Rafael J., Cristobal Rodriguez-Delgado, and Gregorio Iglesias. "Wave Energy Converter Configuration for Coastal Erosion Mitigation." In SpringerBriefs in Energy, 29–43. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31318-0_3.

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Bergillos, Rafael J., Cristobal Rodriguez-Delgado, and Gregorio Iglesias. "Wave Energy Converter Configuration for Coastal Flooding Mitigation." In SpringerBriefs in Energy, 45–57. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-31318-0_4.

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Wahyudie, Addy, Mohammed Jama, Omsalama Said, Ali Assi, and Hassan Noura. "Low Cost Controller for Wave Energy Converter." In ICREGA’14 - Renewable Energy: Generation and Applications, 207–19. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05708-8_16.

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Bellamy, N. W. "The Circular Sea Clam Wave Energy Converter." In Hydrodynamics of Ocean Wave-Energy Utilization, 69–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82666-5_5.

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Lee, William, Michael Castle, Patrick Walsh, Patrick Kelly, and Cian Murtagh. "Mathematical Modelling of a Wave-Energy Converter." In Progress in Industrial Mathematics at ECMI 2016, 201–6. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63082-3_30.

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Mayon, Robert, Dezhi Ning, Boyin Ding, and Nataliia Y. Sergiienko. "Wave energy converter systems – status and perspectives." In Modelling and Optimisation of Wave Energy Converters, 3–58. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003198956-1.

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Conference papers on the topic "Pendulum Wave Energy Converter"

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Qiu, Shouqiang, Jiawei Ye, Dongjiao Wang, and Fulin Liang. "Capture Width Study on a Pendulum Wave Energy Converter." In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5748686.

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Boren, Blake C., Belinda A. Batten, and Robert K. Paasch. "Active control of a vertical axis pendulum wave energy converter." In 2014 American Control Conference - ACC 2014. IEEE, 2014. http://dx.doi.org/10.1109/acc.2014.6859459.

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Zhang, Yang, and Yaobao Yin. "Research on the primary energy conversion efficiency of pendulum wave energy converter." In 2015 International Conference on Fluid Power and Mechatronics (FPM). IEEE, 2015. http://dx.doi.org/10.1109/fpm.2015.7337192.

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Xiangyong Huang, Qijuan Chen, and Junfang Zhang. "The design of transmission scheme of the pendulum wave energy converter." In 2014 ISFMFE - 6th International Symposium on Fluid Machinery and Fluid Engineering. Institution of Engineering and Technology, 2014. http://dx.doi.org/10.1049/cp.2014.1222.

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Wang, Chunjie, Xuece Li, Peng Chen, and Lin Cui. "Application of Maximum Power Point Tracking Control in Pendulum Wave Energy Converter." In 2021 IEEE International Conference on Mechatronics and Automation (ICMA). IEEE, 2021. http://dx.doi.org/10.1109/icma52036.2021.9512667.

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Fenu, Beatrice, Francesco Niosi, Bruno Paduano, and Sergej Antonello Sirigu. "Experimental investigation of 1:25 scaled model of Pendulum Wave Energy Converter." In 2022 International Conference on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME). IEEE, 2022. http://dx.doi.org/10.1109/iceccme55909.2022.9987910.

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Liu, Daifei, Hongjia Yang, Xiaowu Chen, and Jianping Xiang. "A Modeling and Parameter Optimization Approach for a Pendulum Wave Energy Converter." In 2019 25th International Conference on Automation and Computing (ICAC). IEEE, 2019. http://dx.doi.org/10.23919/iconac.2019.8895190.

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Marcollo, Hayden, Jonathan Gumley, Paul Sincock, Nicholas Boustead, Adrian Eassom, Genevieve Beck, and Andrew E. Potts. "A New Class of Wave Energy Converter: The Floating Pendulum Dynamic Vibration Absorber." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-62220.

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A new class of Wave Energy Converter (WEC) is presented — the Floating Pendulum Dynamic Vibration Absorber (FPDVA). This concept offers significant design benefits to other WEC technology in the form of low cost installation and mechanical moving components located above the waterline only. The key elements of the FPDVA concept are highlighted. The performance of the concept is demonstrated through numerical modeling with calibration of the numerical models via physical tank testing. The Power Take Off (PTO) system is described, and the bench tests are presented. A discussion about the control systems required to operate the FPDVA system and the likely floating body mooring configurations are also presented. The technology has patent pending status. Future phased development of the technology is planned to progress its Technology Readiness Level (TRL) status from TRL 4 to TRL 9.
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Gao, Qi. "Study on a Novel Pendulum Wave Energy Converter Combined of the Wind and Solar Energy." In 2017 7th International Conference on Education, Management, Computer and Society (EMCS 2017). Paris, France: Atlantis Press, 2017. http://dx.doi.org/10.2991/emcs-17.2017.155.

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Halder, Paresh, and Shuichi Nagata. "Numerical Analysis of a Floating Body Pendulum Wave Energy Converter Using Vortex Method." In OCEANS 2022 - Chennai. IEEE, 2022. http://dx.doi.org/10.1109/oceanschennai45887.2022.9775275.

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Reports on the topic "Pendulum Wave Energy Converter"

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Stefan G Siegel, Ph D. Cycloidal Wave Energy Converter. Office of Scientific and Technical Information (OSTI), November 2012. http://dx.doi.org/10.2172/1061484.

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Bull, Diana L., Chris Smith, Dale Scott Jenne, Paul Jacob, Andrea Copping, Steve Willits, Arnold Fontaine, et al. Reference Model 6 (RM6): Oscillating Wave Energy Converter. Office of Scientific and Technical Information (OSTI), October 2014. http://dx.doi.org/10.2172/1159445.

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Kopf, Steven. WET-NZ Multi-Mode Wave Energy Converter Advancement Project. Office of Scientific and Technical Information (OSTI), October 2013. http://dx.doi.org/10.2172/1097595.

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Yu, Y. H., D. S. Jenne, R. Thresher, A. Copping, S. Geerlofs, and L. A. Hanna. Reference Model 5 (RM5): Oscillating Surge Wave Energy Converter. Office of Scientific and Technical Information (OSTI), January 2015. http://dx.doi.org/10.2172/1169778.

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Weber, Jochem W., and Daniel Laird. Structured Innovation of High-Performance Wave Energy Converter Technology: Preprint. Office of Scientific and Technical Information (OSTI), January 2018. http://dx.doi.org/10.2172/1418966.

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Ruehl, Kelley, Giorgio Bacelli, and Budi Gunawan. Experimental Testing of a Floating Oscillating Surge Wave Energy Converter. Office of Scientific and Technical Information (OSTI), March 2019. http://dx.doi.org/10.2172/1761877.

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Yu, Y. H., M. Lawson, Y. Li, M. Previsic, J. Epler, and J. Lou. Experimental Wave Tank Test for Reference Model 3 Floating-Point Absorber Wave Energy Converter Project. Office of Scientific and Technical Information (OSTI), January 2015. http://dx.doi.org/10.2172/1169792.

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Roberts, Jesse D., Craig Jones, and Jason Magalen. Wave Energy Converter (WEC) Array Effects on Wave Current and Sediment Circulation: Monterey Bay CA. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1156603.

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Roberts, Jesse D., Grace Chang, Jason Magalen, and Craig Jones. Investigation of Wave Energy Converter Effects on Wave Fields: A Modeling Sensitivity Study in Monterey Bay CA. Office of Scientific and Technical Information (OSTI), August 2014. http://dx.doi.org/10.2172/1150235.

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Roberts, Jesse D., Grace Chang, Jason Magalen, and Craig Jones. Wave Energy Converter Effects on Wave Fields: Evaluation of SNL-SWAN and Sensitivity Studies in Monterey Bay CA. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1156934.

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