Biography
John Ringwood, a native of Enniscorthy, Co. Wexford, was educated at Dublin Institute of Technology, Kevin Street and at Strathclyde University in Scotland, where he was awarded the PhD in 1985. He was a Senior Lecturer in the School of Electronic Engineering in Dublin City University until 2000, when he was appointed Professor and Head of the Department of Electronic Engineering at NUI Maynooth, serving as Head for a five year term to July 2005. He was a visiting Research Fellow at Massey University in New Zealand in 1991/92 and a visiting Senior Lecturer at the University of Auckland in 1999. His research interests focus on the development and application of modelling and control systems techniques. John is a Fellow of Engineers Ireland and a Chartered Engineer. John served as Dean of the Engineering at NUI Maynooth from 2001 to 2006. He is currently the Director of the Centre for Ocean Energy Research at Maynooth University.
Publications
2021
Rosati, M., Kelly, T. and Ringwood, J.V. Nonlinear data-based hydrodynamic modelling of an oscillating water column wave energy device, IEEE Access, Vol.9, pp 149756-149765, 2021.
Mosquera, F.D., Puleston, P.F., Evangelista, C.A. and Ringwood, J.V. Análisis de Turbinas Undimotrices para Columna de Agua Oscilante Operando en Máxima Extracción de Energía, Proc. RPIC2021 (XIX Reunión de Trabajo en Procesamiento de la Información y Control), San Juan, Argentina, 3-5 Nov. 2021.
Faedo, N., García-Violini, D., Pena-Sanchez, Y. and Ringwood, J.V. On the feasibility of energy-maximising controllers for an Argentinian wave energy system, Proc. RPIC2021 (XIX Reunión de Trabajo en Procesamiento de la Información y Control), San Juan, Argentina, 3-5 Nov. 2021.
García-Violini, D., Farajvand, M., Windt, C., Grazioso, V. and Ringwood, J.V. Passivity considerations in robust spectral-based controllers for wave energy converters, Proc. RPIC2021 (XIX Reunión de Trabajo en Procesamiento de la Información y Control), San Juan, Argentina, 3-5 Nov. 2021.
Pasta, E., Faedo, N., Parrinello, L., Carapallese, F., Ringwood, J.V. and Mattiazzo, G. Constraint handling in extremum-seeking control for wave energy systems: A case study, Proc. Intl. Conf. on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME 2021), Mauritius, Oct. 2021.
Faedo, N., Dores-Piuma, F.J., Giorgi, G., Bracco, G., Mattiazzo G., and Ringwood, J.V. Data-driven nonlinear model reduction by moment-matching for the ISWEC system, Proc. Intl. Conf. on Electrical, Computer, Communications and Mechatronics Engineering (ICECCME 2021), Mauritius, Oct. 2021.
Faedo, N., Scarciotti, G., Astolfi, A. and Ringwood, J.V. On the approximation of moments for nonlinear systems, IEEE Trans. on Automatic Control, Vol.66, No.11, pp 5538-5545, 2021.
Guo, B., Zheng, S., Ringwood, J.V., Henriques, J and Zhang, D. Guest editorial: Advances in wave energy conversion systems, IET Renewable Power Generation (Special issue on Advances in Wave Energy Conversion Systems), Vol.15, No.14, pp 3039-3044, 2021.
Guo, B. and Ringwood, J.V. A review of wave energy technology from a research and commercial perspective, IET Renewable Power Generation (Special issue on Advances in Wave Energy Conversion Systems), Vol.15, No.14, pp 3065-3090, 2021.
Faedo, N., Pena-Sanchez, Y., Carapellese, F., Ringwood, J.V. and Mattiazzo, G. LMI-based passivation of LTI systems with application to marine structures, IET Renewable Power Generation (Special issue on Advances in Wave Energy Conversion Systems), Vol.15, No.14, pp 3424-3433, 2021.
Faedo, N., Scarciotti, G., Astolfi, A. and Ringwood, J.V. Energy-maximising moment-based constrained optimal control of ocean energy wave farms, IET Renewable Power Generation (Special issue on Advances in Wave Energy Conversion Systems), Vol.15, No.14, pp 3395-3408, 2021.
Ermakov, A. and Ringwood, J.V. Rotors for wave energy conversion – Practice and possibilities, IET Renewable Power Generation (Special issue on Advances in Wave Energy Conversion Systems), Vol.15, No.14, pp 3091-3108, 2021.
Said, H.A. and Ringwood, J.V. Grid integration aspects of wave energy – A review, IET Renewable Power Generation (Special issue on Advances in Wave Energy Conversion Systems), Vol.15, No.14, pp 3045-3064, 2021.
Garcia-Violini, D., Pena-Sanchez, Y., Faedo, N., Windt, N., Ferri, F. and Ringwood, J.V. Experimental implementation and validation of a LTI energy-maximising control strategy for the Wavestar device, IEEE Trans. on Control Systems Technology, Vol.29, No.6, pp 2609-2621, 2021.
Faedo, N., Scarciotti, G., Astolfi, A. and Ringwood, J.V. Nonlinear energy-maximising optimal control of wave energy systems: A moment-based approach, IEEE Trans. on Control Systems Technology, Vol.29, No.6, pp 2533-2547, 2021.
Arredondo-Galeana, A., Shi, W., Olbert, G., Scharf, M., Ermakov, A., Ringwood, J.V. and Brennan, F. A methodology for the structural design of LiftWEC: A wave-bladed cyclorotor, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 1967-1:1967-9.
Guo, B. and Ringwood, J.V. On energy transfer of parametric resonance for wave energy conversion, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 2004-1:2004-9.
Moens de Hase, D., Pasta, E., Faedo, N. and Ringwood, J.V. Extremum seeking control for wave energy systems – possibilities and pitfalls, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 1925-1:1925-10.
Kelly, T., Zabala, I., Pena-Sanchez, Y., Penalba, M., Ringwood, J.V., Henriques, J.C.C. and Blanco, J. A postprocessing technique for removing irregular frequencies and other issues in the results from BEM solvers, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 2185-1:2185-9.
Said, H.A. and Ringwood, J.V. Intelligent control of a DC microgrid consisting of Wave Energy Converter (WEC) and Hybrid Energy storage system (HESS), Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 1884-1:1884-9.
Faedo, N. and Ringwood, J.V. A framework for wave energy control design, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 1919-1:1919-10.
Thomas, S, Hals-Todalshaug, J. and Ringwood, J.V. A realistic nonlinear benchmark problem for wave energy controllers, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 1933-1:1933-10.
Guo, B., Elmoosa, Q., Windt, C. and Ringwood, J.V. Impact of nonlinear hydrodynamic modelling on geometric optimisation of a spherical heaving point absorber, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 2366-1:2366-10.
Ermakov, A. and Ringwood, J.V. Development of an analytical model for a cyclorotor wave energy device, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 1885-1:1885-7.
Farajvand, M., Garcia-Violini, D., Grazioso, V., Windt, C. and Ringwood, J.V. Quantifying hydrodynamic model uncertainty for robust control of wave energy devices, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 2251-1:2251-10.
Zabala, I., Penalba-Retes, M., Pena-Sanchez, Y., Faedo, N., Ringwood, J.V., Henriques, J. and Blanco, J.M. BEMRosetta: An open-source hydrodynamic coefficients converter and viewer integrated with Nemoh and FOAMM, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 2124-1:2124-8.
Rosati, M., Kelly, T. and Ringwood, J.V. Data-based hydrodynamic modelling of an OWC wave energy converter, Proc. EWTEC 2021, Plymouth, Sept. 2021, pp 2181-1:2181-10.
Windt, C., Davidson, J. and Ringwood, J.V. Numerical analysis of the hydrodynamic scaling effects for the Wavestar wave energy converter, Journal of Fluids and Structures, Vol.105, Paper 103328, pp 1-28, 2021.
Ermakov, A. and Ringwood, J.V. A control-oriented model for a cyclorotor wave energy device with N hydrofoils, Journal of Ocean Engineering and Marine Energy, Vol.7, pp 201-210, 2021.
Guo, B. and Ringwood, J.V. Geometric optimisation of wave energy conversion devices: A survey, Applied Energy, Vol.297, Paper 117100, pp 1-27, 2021.
Noble, S.-C., Ward, T. and Ringwood, J.V. Optimising the level of challenge in stroke rehabilitation using iterative learning control: A simulation, Proc. 10thIntl. IEEE EMBS Conf. on Neural Engineering (virtual), May 2021.
Ransley, E. et al, Focused wave interactions with floating structures: A blind comparative study, Proceedings of the Institution of Civil Engineers -Engineering and Computational Mechanics, Vol.174, No.1, pp 46-61, 2021.
Garcia-Violini, D. and Ringwood, J.V. Energy maximising robust control for spectral and pseudospectral methods with application to wave energy systems, International Journal of Control, Vol.94, No.4, pp 1102-1113, 2021.
Bingham, H., Yu, Y.-H., Nielsen, K., Tran, T., Kim, K.-H., Park, S., Hong, K., Said., H.A., Kelly, T., Ringwood, J.V., Read, R., Ransley, E., Brown, S., Greaves, D. Ocean energy systems wave energy modelling task 10.4: Numerical modelling of a fixed oscillating water column, Energies, Vol.14, No.6 Paper 1718, 2021.
Wang, L. and Ringwood, J.V. Control-informed ballast and geometric optimisation of a three-body hinge-barge wave energy converter using two-layer optimisation, Renewable Energy, Vol.171, pp1159-1170, 2021.
Windt, C., Faedo, N., Penalba, M., Dias, F. and Ringwood, J.V. Reactive control of wave energy devices - the modelling paradox, Applied Ocean Research, Vol.109, paper # 102574, pp 1-15, 2021.
Faedo, N., Garcia-Violini, D. and Ringwood, J.V. Inducing synchronisation in a complex network of nonlinear oscillators via feedback linearization and H∞-control, Chaos, Solitons and Fractals, Vol.144, Paper 110722, pp 1-6, 2021.
Windt, C., Davidson, J. and Ringwood, J.V. Investigation of turbulence modelling for wave energy converters, Energies(Special Issue on Wave Energy System Hydrodynamics Modeling and Application of High-Performance Computing), Vol.14, No.26, 2021.
Guo, B. and Ringwood, J.V. Nonlinear modelling of a vibro-impact wave energy converter, IEEE Trans. on Sustainable Energy, Vol.12, No.1, pp 492-500, 2021.
Faedo, N., Pena-Sanchez, Y. and Ringwood, J.V. Receding-horizon energy-maximising optimal control of wave energy systems based on moments, IEEE Trans. on Sustainable Energy, Vol.12, No.1, pp 378-386, 2021.
Windt, C., Untrau, A., Davidson, J., Ransley, E.J., Greaves, D. and Ringwood, J.V. Assessing the validity of regular wave theory in a short physical wave flume using particle image velocimetry, Experimental Thermal and Fluid Science, Vol.121, Paper 110276, Feb. 2021.
2020
Windt, C., Davidson, J., Faedo, N. Chander, D. and Ringwood, J.V. Evaluation of the overset grid method for control studies of wave energy converters in OpenFOAM numerical wave tanks, Journal of Ocean Engineering and Marine Energy, Vol.6, No.1, 2020, pp 55-70.
Pena-Sanchez, Y., Merigaud, A. and Ringwood, J.V. Short-term sea elevation forecasting for wave energy applications: The AR model revisited, IEEE Journal of Oceanic Engineering, Vol.45, No.2, 2020, pp 462-471.
Faedo, N., Garcia-Violini, D., Pena-Sanchez, Y. and Ringwood, J.V. Optimisation- Vs non-optimisation-based energy-maximising control for wave energy converters: A case study, Proc. European Control Conference (ECC), St. Petersburg, May 2019, pp 843-848
Guo, B. and Ringwood, J.V. Modelling of a vibro-impact power take-off mechanism for wave energy systems, Proc. European Control Conference (ECC), St. Petersburg, May 2019, pp 1348-1353.
Ringwood, J.V., Merigaud, A., Faedo, N. and Fusco, F.An analytical and numerical sensitivity and robustness analysis of wave energy control systems, IEEE Trans. on Control Systems Technology, Vol.28, No.4, 2020, pp 1337-1348.
Ringwood, J.V. Wave energy control: status and perspectives 2020, Proc. IFAC World Congress, Berlin, July 2020
Guo, B. and Ringwood, J.V. Parametric study of a vibro-impact wave energy converter, Proc. IFAC World Congress, Berlin, July 2020.
Garcia-Violini, D., Pena-Sanchez, Y., Faedo, N., Windt, C.; Ringwood, J.V. LTI energy-maximising control for the WaveStar wave energy converter: Identification, design and implementation, Proc. IFAC World Congress, Berlin, July 2020.
Windt, C., Faedo, N., Garcia-Violini, D., Pena-Sanchez, Y., Davidson, J., Ferri, F. and Ringwood, J.V. Validation of a CFD-based numerical wave tank model of the 1/20th scale Wavestar wave energy converter, Fluids (Special Issue on Wind and Wave Renewable Energy Systems), Vol.5, No.3, Paper 112, July 2020
Mosquera, F.D., Evangelista, C.A., Puleston, P. and Ringwood, J.V. Optimal wave energy extraction for oscillating water columns using second order sliding mode control, IET Renewable Power Generation, Vol.14, No.9, July 2020, pp 1512-1519. [
Ringwood, J.V. and Bagnall-Hare, H. Understanding the interplay between baroreflex gain, low frequency oscillations, and pulsatility in the neural baroreflex, Biocybernetics and Biomedical Engineering, Vol.40, No.3, pp1291-1303.
Garcia-Violini, D., Pena-Sanchez, Y., Faedo, N. and Ringwood, J.V. An energy-maximising linear time-invariant controller (LiTe-Con) for wave energy devices, IEEE Trans. On Sustainable Energy, Vol.11, No.4, 2020, pp 2713-2721.
Jaramillo-Lopez, F., Flannery, B., Murphy, J. and Ringwood, J.V. Modelling of a Three-Body Hinge-Barge Wave Energy Device using System Identification Techniques, Energies (special issue on Computational Modelling of Wave Energy Converters), Vol.13, No.19, Paper 5129, pp 1-16, 2020.
Penalba, M., Ulazia, A., Saenz, J. and Ringwood, J.V. Impact of long-term resource variations on wave energy farms: The Icelandic case, Energy, Vol 192, Paper 116609, Feb. 2020.
Faedo, N., Pena-Sanchez, Y. and Ringwood, J.V. Parametric representations of wave energy arrays for motion simulation and unknown input estimation: A moment-based approach, Applied Ocean Research (special issue of Wave Energy Utilisation), Vol.98, Paper 102055, May 2020.
Penalba Retes, M. and Ringwood, J.V. Systematic complexity reduction of wave-to-wire models for wave energy system design, Ocean Engineering, Vol.217, Paper 107651, Dec. 2020.
Schmitt, P., Windt, C., Davidson, J., Ringwood, J.V. and Whittaker, T. Beyond VoF numerical wave tanks in OpenFOAM, Journal of Ocean Engineering and Marine Energy, Vol.6, 2020, pp 277-292.
Papillon, L., Costello, R. and Ringwood, J.V. Boundary element methods in potential flow theory: A comprehensive review with a focus on wave energy applications, Journal of Ocean Engineering and Marine Energy, Vol.6, 2020, pp 303-337
Pena, Y., Windt, C., Davidson, J. and Ringwood, J.V. A critical comparison of excitation force estimators for wave energy devices, IEEE Trans. on Control Systems Technology, Vol.28, No.6, 2020, pp 2263-2275.
Garcia-Violini, D., Faedo, N., Jaramillo-Lopez, F. and Ringwood, J.V. Simple controllers for wave energy devices compared, Journal of Marine Science and Engineering(special issue on Optimization and Energy Maximizing Control Systems for Wave Energy Converters), Vol.8, No.10, Paper 793, pp 1-30, 2020.
Jaramillo-Lopez, F., Ringwood, J.V., Flannery, B. and Murphy, J., Black-box modelling of a three-body hinge-barge wave energy device via forced responses. Proc. 4th Intl. Conf. on Renewable Energies Offshore (RENEW), Lisbon, Portugal, October 2020, pp 231-237.
Mosquera, F.D., Evangelista, C.A, Puleston, P.F. and Ringwood, J.V. Extraccion Optima de Potencia mediante Modos Deslizantes de Segundo Orden Adaptivos sobre Columna de Agua Oscilante con modelo Ola-Red, Proc.Congreso Argentino de Control Automático AADECA, Universidad de Palermo, Oct. 2020, pp 249-254.
Windt, C., Davidson, J., Schmitt, P. and Ringwood, J.V. Wave-structure interaction of wave energy converters: A sensitivity analysis, Engineering and Computational Mechanics,Vol.173, No.3, 2020, pp 144-158.
Faedo, N., Dores-Piuma, F.J., Giorgi, G. and Ringwood, J.V. Nonlinear model reduction for wave energy systems, Nonlinear Dynamics, Vol.102, No.3, 2020, pp 1215-1237.
Faedo, N, Pena-Sanchez, Y. and Ringwood, J.V. Parameterisation of radiation forces for multiple degrees-of-freedom wave energy converters using moment matching, Int. J. of Offshore and Polar Eng., Vol.30, No.4, 2020 pp 395-402.
Astolfi, A., Scarciotti, G., Simard, J., Faedo, N. and Ringwood, J.V. Model reduction by moment matching: Beyond linearity – A review of the last 10 years, Proc. CDC 2020, Jeju, Korea, Dec 2020, pp 1-16
Ransley, E., Yan, S., Brown, S., Hann, M., Graham, D., Windt, C., Schmitt, P., Davidson, J., Ringwood, J.V., Musiedlak, P.-H., Wang, J., Wang, J., Ma, Q., Xie, Z., Zhang, N., Zheng, X., Giorgi, G., Chen, H., Lin, Z., Qian, L., Ma, Z., Bai, W., Chen, Q., Zang, J., Ding, H., Cheng, L., Zheng, J., Gu, H., Gong, X., Liu, Z., Zhuang, Y., Wan, D., Bingham, H., Graeves, D. (n.d.), A blind comparative study of focused wave interactions with floating structures (CCP-WSI Blind Test Series 3), International Journal of Offshore and Polar Engineering, Vol.30, No.1, March 2020, pp 1-10.
2020 |
Ringwood, John V.; Mérigaud, Alexis; Faedo, Nicolás; Fusco, Francesco An Analytical and Numerical Sensitivity and Robustness Analysis of Wave Energy Control Systems (Journal Article) In: IEEE Transactions on Control Systems Technology, 2020. @article{JohnSensiRobustWEC, |
Windt, Christian; Davidson, Josh; Ransley, Edward; Greaves, Deborah; Morten, Jacobsen; Kramer, Morten; Ringwood, John V. Validation of a CFD-based numerical wave tank model for the power production assessment of the wavestar ocean wave energy converter (Journal Article) In: Renewal Energy, 2020. @article{Windt19Validation, |
2019 |
Wang, Liguo; Ringwood, John V. Geometric optimisation of a hing-barge wave energy device (Proceedings Article) In: 2019. @inproceedings{LiGuo2019geometric,Liguo Wang, one of our postdoctoral researchers, working on the development and implementation of control strategies for wave energy converters, presented this paper at the EWTEC conference in Napoli earlier this month. this paper studies the optimal size of an interconnected pontoon system, where the power take-off systems attached to each barge are equipped with optimal linear passive dampers. |
García Violini, Demian; Ringwood, John V. Robust control of wave energy converters using spectral and pseudospectral methods: a case study (Proceedings Article) In: 2019. (BibTeX) @inproceedings{Demian19Robust, |
García Violini, Demian; Ringwood, John V. Energy maximising robust control for spectral and pseudospectral methods with application to wave energy systems (Journal Article) In: International Journal of Control, 2019. @article{Demian19Energy, |
Papillon, Louis; Wang, LiGuo; Tom, Nathan; Weber, Jochem; Ringwood, John V. Parametric modelling of a reconfigurable wave energy device (Journal Article) In: Ocean Engineering, vol. 186, pp. 106105, 2019, ISSN: 0029-8018. @article{Louis19ParametricModelling,To date, one of the difficulties with wave energy devices is modulating the power transfer from the waves to the generator. In wind turbines, this is achieved by turbine pitch control, leading to the ubiquitous flat power curve. Recently, a wave energy converter, having moveable vanes, has been developed by the National Renewable Energy Laboratory (NREL) in the US. This paper described the development of a compact hydrodynamic model for the NREL device, based on multiple linear hydrodynamic modelling (Murray-Smith and Johansen, 1997), which can be used to model the hydrodynamic behaviour of the device across its full operational spectrum of vane angles. To show the utility of the model, we demonstrate a flat power curve for the WEC, using the vane angles as a control input. |
Schmitt, Pál; Windt, Christian; Davidson, Josh; Ringwood, John V.; Whittaker, Trevor The Efficient Application of an Impulse Source Wavemaker to CFD Simulations (Journal Article) In: Journal of Marine Science and Engineering, vol. 7, no. 71, pp. 7030071, 2019. @article{Christian19ImpulseSourceWavemaker, |
Peña-Sanchez, Yerai; Faedo, Nicolás; Penalba, Markel; Giorgi, Giuseppe; Mérigaud, Alexis; García Violini, Demian; Wang, Liguo; Ringwood, John V. Finite-Order hydrodynamic Approximation by Momment-Matching (FOAMM) toolbox for wave energy applications (Proceedings Article) In: Proceedings of the 13th European Wave and Tidal Energy Conference (EWTEC) Naples, Italy, EWTEC 2019. @inproceedings{PenaSanchez2019FOAMM, |
Windt, Christian; Davidson, Josh; Schmitt, Pál; Ringwood, John V. On the Assessment of Numerical Wave Makers in CFD Simulations (Journal Article) In: Journal of Marine Science and Engineering, vol. 7, no. 2, pp. 7020047, 2019. @article{Christian19NumericalWaveMakes, |
Davidson, Josh; Windt, Christian; Giorgi, Giuseppe; Genest, Romain; Ringwood, John V. Evaluation of energy maximising control systems for wave energy converters using OpenFOAM (Book Section) In: pp. 157, 2019. (BibTeX) @incollection{Josh19OpenFOAM, |
Giorgi, Giuseppe; Ringwood, John V. A Compact 6-DoF Nonlinear Wave Energy Device Model for Power Assessment and Control Investigations (Journal Article) In: IEEE Transactions on Sustainable Energy, vol. 10, no. 1, pp. 119-126, 2019. @article{Giuseppe19-6DOF, |
Penalba, Markel; Ringwood, John V. Linearisation-based nonlinearity measures for wave-to-wire models in wave energy (Journal Article) In: Linearisation-based nonlinearity measures for wave-to-wire models in wave energy, vol. 171, pp. 496-504, 2019. @article{Markel19NonlinearityMeasure, |
Penalba, Markel; Ringwood, John V. A high-fidelity wave-to-wire model for wave energy converters (Journal Article) In: Renewable Energy, vol. 134, pp. 367-378, 2019. @article{markel19wave2wire, |
2018 |
Peña-Sanchez, Yerai; Mérigaud, Alexis; Ringwood, John V. Short-Term Forecasting of Sea Surface Elevation for Wave Energy Applications: The Autoregressive Model Revisited (Journal Article) In: IEEE Journal of Oceanic Engineering, 2018. @article{Yerai18Forecasting,For wave energy converter control applications, autoregressive (AR) models have been proposed as a simple wave forecasting method, solely based on measured or estimated values of the past wave elevation (or excitation force) signal. Using offline-filtered wave time series, AR models can achieve accurate forecasts several wave periods into the future. In this paper, the AR method is examined from the broader perspective of linear, Gaussian processes. In particular, assuming Gaussian waves and perfect knowledge of the wave spectrum, it is possible to derive a theoretically-optimal wave elevation predictor. It is shown that, in realistic situations, AR models can achieve a performance comparable to the theoretically optimal, spectrum-based predictor, both in simulated wave time series and using actual wave elevation records. |
Windt, Christian; Davidson, Josh; Ransley, Edward; Jakobsen, Morten; Kramer, Morten; Ringwood, John V. Validation of a CFD-based numerical wave tank of the Wavestar WEC (Conference) 3rd International Conference on Renewable Energies Offshore, Lisbon, Portugal, 2018. @conference{Christian18ValidationWaveStar, |
Windt, Christian; Davidson, Josh; Ringwood, John V. High-fidelity numerical modelling of ocean wave energy systems: A review of computational fluid dynamics-based numerical wave tanks (Journal Article) In: Renewable and Sustainable Energy Reviews, vol. 93, pp. 610-630, 2018. @article{Christian08HighFi, |
Paparella, Francesco; Sivcev, Satja; Toal, Daniel; Ringwood, John V. A low-cost motion capture system for small-scale wave energy device tank testing (Journal Article) In: Journal of Dynamic Systems, Measurement and Control, vol. 141, no. 3, pp. 031008, 2018. @article{Francesco19LowCostMotionCaptureSystem, |
Mérigaud, Alexis; Ringwood, John V. Towards realistic non-linear receding-horizon spectral control of wave energy converters (Journal Article) In: Control Engineering Practice, vol. 81, pp. 145-161, 2018. @article{alexis2018NRC, |
Faedo, Nicolás; Scarciotti, Giordano; Astolfi, Alessandro; Ringwood, John V. Energy-maximising control of wave energy converters using a moment-domain representation (Journal Article) In: Control Engineering Practice, vol. 81, pp. 85-96, 2018. @article{Nicolas-2018-EnergyMaximisingControlWECMoment, |
Garcia-Rosa, Paula B.; Ringwood, John V.; Fosso, Olav; Marta, Molinas The impact of time-frequency estimation methods on the performance of wave energy converters under passive and reactive control (Journal Article) In: IEEE Transactions on Sustainable Energy, 2018. @article{Paula2018ImpactTimeFrequencyEstimation, |
Penalba, Markel; Davidson, Josh; Windt, Christian; Ringwood, John V. A high-fidelity wave-to-wire simulation platform for wave energy converters: Coupled numerical wave tank and power take-off models (Journal Article) In: Applied Energy, vol. 226, pp. 655-669, 2018. @article{Markel18-AHighFidelityWaveToWire, |
Auger, Clement; Mérigaud, Alexis; Ringwood, John V. Receding-horizon pseudo-spectral control of wave energy converters using periodic basis functions (Journal Article) In: IEEE Transactions on Sustainable Energy, 2018. @article{Auger2018-RecedingHorizonPScontrol, |
Faedo, Nicolás; Peña-Sanchez, Yerai; Ringwood, John V. Finite-order hydrodynamic model determination for wave energy applications using moment-matching (Journal Article) In: Ocean Engineering, vol. 163, pp. 251-263, 2018. @article{Nicolas18MomemtHydrodynamicModel, |
Giorgi, Giuseppe; Ringwood, John V. Analytical representation of nonlinear Froude-Krylov forces for 3-DoF point absorbing wave energy devices (Journal Article) In: Ocean Engineering, vol. 164, pp. 749-759, 2018. @article{2018giuseppe_OceanEngineering_Analytical, |
Peña-Sanchez, Yerai; Garcia-Abril, Marina; Paparella, Francesco; Ringwood, John V. Estimation and Forecasting of Excitation Force for Arrays of Wave Energy Devices (Journal Article) In: IEEE Transactions on Sustainable Energy, 2018. @article{Yerai18Estimation, |
Giorgi, Giuseppe; Ringwood, John V. ANALYTICAL FORMULATION OF NONLINEAR FROUDE-KRYLOV FORCES FOR SURGING-HEAVING-PITCHING POINT ABSORBERS (Conference) Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, 2018. @conference{Giuseppe18OMAE, |
Peña-Sanchez, Yerai; Faedo, Nicolás; Ringwood, John V. Hydrodynamic Model Fitting for Wave Energy Applications Using Moment-Matching: A Case Study (Conference) The 28th International Ocean and Polar Engineering Conference, International Society of Offshore and Polar Engineers, Sapporo, Japan, 2018. @conference{Yerai-2018-HydrodynamicModelFittingMmentMatching, |
Mérigaud, Alexis; Ringwood, John V. Incorporating Ocean Wave Spectrum Information in Short-Term Free-Surface Elevation Forecasting (Journal Article) In: IEEE Journal of Oceanic Engineering, no. 99, 2018. @article{Alexis18IncorporatingOceanWaveSpectrum, |
Giorgi, Giuseppe; Ringwood, John V. A Compact 6-DoF Nonlinear Wave Energy Device Model for Power Assessment (Journal Article) In: IEEE Transactions on Sustainable Energy, 2018. @article{Giusepper18ACompact6DOF, |
Giorgi, Giuseppe; Ringwood, John V. Comparing nonlinear hydrodynamic forces in heaving point absorbers and oscillating wave surge converters (Journal Article) In: Journal of Ocean Engineering and Marine Energy, vol. 4, no. 1, pp. 25-35, 2018. @article{2018giuseppe-JOEME, |
Mérigaud, Alexis; Ringwood, John V. Power production assessment for wave energy converters: Overcoming the perils of the power matrix (Journal Article) In: Journal of Engineering for the Maritime Environment, vol. 232, no. 1, pp. 50-70, 2018. @article{alexis2018JEME, |
Genest, Romain; Davidson, Josh; Ringwood, John V. Adaptive control of a wave energy converter (Journal Article) In: IEEE Transactions on Sustainable Energy , 2018. @article{Rmain18AdaptiveControl, |
Mérigaud, Alexis; Ringwood, John V. Free-Surface Time-Series Generation for Wave Energy Applications (Journal Article) In: IEEE Journal of Oceanic Engineering, vol. 43, no. 1, pp. 19-35, 2018. @article{2018alexisIEEE-JOCE, |
Giorgi, Giuseppe; Ringwood, John V. Relevance of pressure field accuracy for nonlinear Froude-Krylov force calculations for wave energy devices (Journal Article) In: Journal of Ocean Engineering and Marine Energy, 2018. @article{Giorgi2018a, |
Mérigaud, Alexis; Ringwood, John V. A Nonlinear Frequency-Domain Approach for Numerical Simulation of Wave Energy Converters (Journal Article) In: IEEE Transactions on Sustainable Energy, vol. 9, no. 1, pp. 86-94, 2018. @article{alexis2018nonlinear, |
2017 |
Ulazia, Alain; Penalba, Markel; Ibarra-Berastegi, Gabriel; Ringwood, John V.; Jon, Saénzde Wave energy trends over the Bay of Biscay and the consequences for wave energy converters (Journal Article) In: Energy, vol. 141, pp. 624-634, 2017. @article{Alain2017, |
Penalba, Markel; Giorgi, Giuseppe; Ringwood, John V. Mathematical Modelling of Wave Energy Converters: a Review of Nonlinear Approaches (Journal Article) In: Renewable and Sustainable Energy Reviews, vol. 78, pp. 1188-1207, 2017. @article{penalba2017mathematical, |
Faedo, Nicolás; Olaya, Sebástien; Ringwood, John V. Optimal control, MPC and MPC-like algorithms for wave energy systems: An overview (Journal Article) In: IFAC Journal of Systems and Control, vol. 1, pp. 37-56, 2017. @article{faedo2017optimal, |
Giorgi, Giuseppe; Ringwood, John V. Nonlinear Froude-Krylov and viscous drag representations for wave energy converters in the computation/fidelity continuum (Journal Article) In: Ocean Engineering, vol. 141, pp. 164-175, 2017. @article{Giuseppe2017, |
Kelly, Thomas; Dooley, T.; Ringwood, John V. Experimental determination of the hydrodynamic parameters of an OWC (Conference) Proceedings of the 12th European Wave and Tidal Energy Conference, Cork, Ireland, 2017. @conference{kelly2017experimental, |
Mérigaud, Alexis; Ringwood, John V. Nonlinear frequency-domain WEC simulation: Numerical case studies and practical issues (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{merigaud2017nonlinear, |
Davidson, Josh; Genest, Romain; Ringwood, John V. Adaptive control of a wave energy converter simulated in a numerical wave tank (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{davidson2017adaptive, |
Penalba, Markel; Kelly, Thomas; Ringwood, John V. Using NEMOH for modelling wave energy converters: A comparative study with WAMIT (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{penalba2017using, |
Giorgi, Giuseppe; Ringwood, John V. Consistency of viscous drag identification tests for wave energy applications (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{giorgi2017consistency, |
Giorgi, Giuseppe; Ringwood, John V. Importance of nonlinear waves for nonlinear Froude-Krylov force calculation (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{giorgi2017importance, |
Paparella, Francesco; Ringwood, John V. Receding Horizon Pseudo-Spectral Control for Energy Maximization of a 1/25th Scale Hinge-Barge Wave Energy Converter (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{paparella2017receding, |
Peña-Sanchez, Yerai; Ringwood, John V. A critical comparison of AR and ARMA models for short-term wave forecasting (Conference) Proceedings of the EWTEC 2017, Cork, 2017. @conference{pena2017critical, |
Windt, Christian; Davidson, Josh; Schmitt, P.; Ringwood, John V.; Sáenz, Jon Assessment of numerical wave makers (Conference) Proceedings of the 12th European Wave and Tidal Energy Conference, Cork, Ireland, 2017. @conference{windt201assessment, |
Ringwood, John V.; Ferri, F.; Ruehl, K.; Yu, Y. -H.; Coe, R.; Bacelli, G.; Weber, J.; Kramer, M. M. A competition for WEC control systems (Conference) Proceedings of the 12th European Wave and Tidal Energy Conference, Cork, Ireland, 2017., Cork, Ireland, 2017. @conference{ringwood2017competition, |
Garcia-Abril, Marina; Paparella, Francesco; Ringwood, John V. Excitation force estimation and forecasting for wave energy applications (Conference) Proceedings of the IFAC World Congress, Toulouse, France, 2017. @conference{garciaabril2017excitation, |