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Publications

SYSWIND publications

Multiscale Wavelet-LQR Controller for Linear Time Varying Systems

SYSWIND researchers (Prof Biswajit Basu and Prof Satish Nagarajaiah) from Trinity College Dublin, Ireland and Rice University, USA develop a new vibration controller which can be used for time-varying operating and environmental conditions in a wind turbine for improved efficiency.

http://dx.doi.org/10.1061/(ASCE)EM.1943-7889.0000162

Multimodal Vibration Control

Researchers from Aalborg University, Denmark and Trinity College Dublin, Ireland experimentally test a new multi-modal control algorithm jointly developed by them. The teams from the two Universities led by Prof Soren R.K. Nielsen (Aalborg) and Prof Biswajit Basu (Trinity College) are currently working under the SYSWIND project to develop the control algorithms for use in wind turbines.

Relevant articles

  • Sakellariou, J.S. and Fassois, S.D. “Fault Detection and Identification in an Aircraft Skeleton Structure via a Stochastic Functional Model Based Method”, Mechanical Systems and Signal Processing, 2008, vol. 22(3), pp. 557-573. doi.org/10.1016/j.ymssp.2007.09.002
  • Kopsaftopoulos F.P., Fassois, S.D., “Vibration – Based Structural Damage Detection and Precise Assessment via Stochastic Functionally Pooled Models”, Key Engineering Materials, 2007, vol. 347, pp. 127-132.
  • Staszewski, W.J., Ruotolo, R. and Storer, D., 1999. “Fault Detection in in Ball-Bearings Using Wavelet Variance”, Proceedings of the 17th International Modal Analysis Conference (IMAC), Kissimmee, Florida, 8-11 February.
  • Staszewski, W.J. and Robertson, A.N., 2007, “Time-Frequency and Time-Scale Analysis for Structural Health Monitoring.”, Philosophical Transactions of the Royal Society, Part A, Vol. 365(1851), pp. 449-477.
  • Staszewski, W.J., Boller, C. and Tomlinson, G.R., Eds., Health Monitoring of Aerospace Structures, John Wiley & Sons, Chichester, UK.
  • Betz, D., Thursby, G., Culshaw, B. and Staszewski, W.J., 2003, "Acousto-Ultrasonic Sensing Using Fiber Bragg Grating", Smart Materials and Structures, Vol. 12(1), pp. 122-128.
  • Betz, D.C., Staszewski, W.J., Thursby, G. and Culshaw, B., 2006. “Multifunctional Fibre Bragg Grating Sensors for Fatigue Crack Detection in Metallic Structures”, Proceedings of the IMechE, Part G, Journal of Aerospace Engineering, Vol. 220(5), pp. 453-461.
  • Betz, D.C., Thursby, G., Culshaw, B. and Staszewski, W.J., 2006. “Structural Damage Identification Using Multifunctional Bragg Grating Sensors. Part I: Theory and Implementation”, Smart Materials and Structures, Vol. 15(5), pp. 1305-1312.
  • Betz, D.C., Staszewski, W.J., Thursby, G. and Culshaw, B., 2006. “Structural Damage Identification Using Multifunctional Bragg Grating Sensors. Part II: Damage Detection Results and Analysis”, Smart Materials and Structures, Vol. 15(5), pp. 1313-1322.
  • Holm-Jørgensen, K. and Nielsen, S.R.K. (2007), System Reduction in Multibody Dynamics of Wind Turbines.”, Multibody System Dynamics (submitted).
  • Holm-Jørgensen, K. and Nielsen, S.R.K. (2008), "A Component Mode Synthesis Algorithm for Multibody Dynamics of Wind Turbines.", Sound and Vibration (to be submitted).
  • Hansen, M.O.L., Sørensen, J.N., Voutsinas, S., Sørensen, N.N. and Aagaard Madsen, H., "State of the art in wind turbine aerodynamics and aeroelasticity.", Progr. Aerosp. Sci. (2006) 42 , 285-330.
  • Schreck, S.J., Sørensen, N.N. and Robinson, M.C., "Aerodynamic structures and processes in rotationally augmented flow fields." Wind Energy (2007) 10 , 159-178.
  • Johansen, J., Aagaard Madsen, H., Sørensen, N.N.and Bak, C., "Numerical investigation of a wind turbine rotor with an aerodynamically redesigned hub-region.", Proceedings (online). 2006 European Wind Energy Conference and Exhibition, Athens (GR), 27 Feb – 2 Mar 2006. (European Wind Energy Association, Brussels, 2006) 9 p.
  • Sørensen, N.N, Aagaard Madsen, H., "Modelling of transient wind turbine loads during pitch motion (paper and poster).", Proceedings (online). 2006 European Wind Energy Conference and Exhibition, Athens (GR), 27 Feb – 2 Mar 2006. (European Wind Energy Association, Brussels, 2006) 10 p.
  • Aagaard Madsen, H., Mikkelsen, R., Sørensen, N.N., Hansen, M.O.L., Øye, S.and Johansen, J., "Influence of wind shear on rotor aerodynamics, power and loads.", Bak, C. (ed.), Research in aeroelasticity EFP-2006., Risø-R-1611(EN) (2007) p. 101-116.
  • Chatterjee, P. and Basu, B. ”Wavelet-based non-stationary seismic rocking response of flexibly supported tanks”, J. Earth Eng & Structural Dynamics, 157-181, 33, 2, 2004.
  • Chatterjee, P. and Basu, B “Non-stationary seismic response of a tank on a bilinear hysteretic soil using wavelet transform”, J Probabilistic Engineering Mechanics , 54-63, 21, 1, 2006.
  • Chatterjee, P. and Basu, B “Lateral dynamic stiffness for footings supported on hysteretic soil medium”, Soil Dyn & Earth Eng, 28, 36-43, 2008.
  • Murtagh P. J., Ghosh, A., Basu, B. and Broderick, B. “Passive control of wind turbine vibrations including blade/tower interaction and rotationally sampled turbulence”, Wind Energy, 2008, 11 (4), 305-317.
  • Murtagh P. J., Basu, B. and Broderick, B. “Response of wind turbines including soil-structure interaction”, Proceedings of the 10th International Conference on Civil, Structural and Environmental Engineering Computing, 2005, paper no 270, Rome, Italy, CD-ROM.
  • Chakraborty, A., Basu, B. and Mitra, M, “Identification of modal parameters of linear MDOF system using wavelet packets”, J. Sound and Vib, 2006, 25(3-5), 827-837.
  • Basu,B., Nagarajaiah, S. and Chakraborty, A. “On-line identification of linear time varying stiffness of structural systems by wavelet analysis”, J Structural Health Monitoring, 2008, 6(1), 21-36.
  • Basu,B. and Nagarajaiah, S. “A wavelet based time varying adaptive LQR algorithm for structural control”, Eng Structures, 2008, (in press) (available online)
  • Chakraborty, A. and Basu, B. “Wavelet based evolutionary spectral analysis of multi-supported bridges under spatially varying differential support motions”, J Engineering Mechanics, ASCE , 2008, 134(2), 155-162.
  • Dueñas-Osorio, L. and Basu, B. “Unavailability of wind turbines from wind induced accelerations”, Eng Structures, 2008, 30(4), 885-893.
  • Staszewski, W.J. “Identification of damping in MDOF systems using time scale decomposition”, Journal of Sound and Vibration, 203, 1997, pp. 283-305.
  • Staszewski, W.J. “Identification of non-linear systems using multi-scale ridges and skeletons of the wavelet transform”, Journal of Sound and Vibration, 214(4), 1998, pp. 639-658.
  • Goggins, J., Broderick, B.M., Basu, B. and Elghazouli, A.Y. “Investigation of seismic response of braced frames using wavelet analysis”, Structural Control and Health Monitoring, 14(4), 2007, 627-648.
  • Basu, M. and Basu, B. “Analysis of power quality (PQ) signals by continuous wavelet transform”, 38th Power Electronics Specialists Conference, IEEE, Florida U.S.A, 2007, pp.2614-2618.
  • Murtagh P. J., and Basu, B. “Identification of modal viscous damping ratios for a simplified wind turbine tower using Fourier and wavelet analysis”, Institute of Mechanical Engineers, Journal of Multi-body Dynamics, part K, 2007, 221(4), 577-589.
  • Aymerich, F.; Lecca, G. and Priolo. P. “Modelling of delamination growth in composite laminates by the Virtual Internal Bond method”. Composites part A: applied science and manufacturing 2008, 39(2): 145-153.
  • Hughes, F.M., Anaya-Lara, O., Jenkins, N. and Strbac, G. "Control of DFIG-based wind generation for power network support", IEEE Transactions on Power Systems, Volume 20, Issue 4, pp.1958-1966 (2005)
  • Anaya-Lara, O., Hughes, F.M., Jenkins, N. and Strbac, G., "Contribution of DFIG-based wind farms to power system short-term frequency regulation", IEE Proceedings Generation, Transmission and Distribution 2006 Vol 153, Issues 1 pp.164-170 (2006)
  • Anaya-Lara, O., Hughes, F.M., Jenkins, N. and Strbac, G.,, "Provision of a synchronising power characteristics on DFIG-based wind farms", IET Proceedings Generation, Transmission and Distribution Vol 1, Issue 1, pp.162-169 (2007)
  • Hughes, F.M., Anaya-Lara, O., Jenkins, N. and Strbac, G."Influence of Tower Shadow and Wind Turbulence on the Performance of Power System Stabilizers for DFIG-Based Wind Farms", IEEE Transaction on Energy Conversion, Volume: 23, Issue: 2 pp: 519-528 (2008)
  • Xu, K.Q. and Rice, H.J. “On an innovative method of modelling general nonlinear mechanical systems, Parts 1 and 2: Theory and numerical simulations”, Trans ASME Journal of Vibration and Acoustics, vol 120, pp125-130: “Experiments”, ASME J Vibration & Acoustics, 120, 131-137 (1998)
  • Barrera Rolla, L. and Rice, H.J. “A forward-advancing wave expansion method for numerical solution of large scale sound propagation problems “, J Sound and Vibration, 296,406-415, (2006)
  • Toal, V., Rice, H., Meskell, C. and Bowe, B. “ESPI for the study of high frequency vibration” Optics and Photonics Technologies and Applications, T.J.Glynn, (ed),Proc SPIE 4876, 175,(2002)
  • Perla, E., O’Cathain, A., Carbajo, R., Huggard, M. and Mc Goldrick, C. "PowerTOSSIM z:Realistic Energy Modelling for Wireless Sensor Network Environments", 3rd ACM Int. Workshop on Performance Monitoring, Measurement, and Evaluation of Heterogeneous Wireless and Wired Networks (PM2HW2N 2008), Canada, 2007, (2008, in press)
  • Carbajo, R.S., Huggard, M. and McGoldrick, C. “An End-to-End routing protocol for Peer-to-Peer communication in Wireless Sensor Networks”, ACM MiNEMA 2008,UK
  • Bitorika, A., Mc Goldrick, C. and Huggard, M. “Rapid Aggregate Defence For Denial of Service Attacks”, IEEE Work. Monitoring, Attack Detection & Mitigation 2007,France, 1-6
  • Holm-Jørgensen, K. ,Larsen, J. and Nielsen, S.R.K. “On the nonlinear analysis of wind turbine blades using reduced order models”, Struc Eng & Mech, 2008, 28(1), 107-127.
  • Mujica, L.E., Vehi, J. Ruiz, M.L., Verleysen, M., Staszewski, W.J. and Worden, K. 2008, “Multivariate Statistical Process Control for Dimensionality Reduction in Structural Assessment”, Mechanical Systems and Signal Processing, Vol. 22(1), pp. 155-171.
  • Staszewski, W.J., Lee, B.C. and Traynor, R. 2007, “Fatigue Crack Detection in Metallic Structures with Lamb Waves and 3-D Laser Vibrometry”, Measurement Science and Technology, Vol. 18, No. 3, pp. 727-739.
  • Pedersen, B.J. “Considerations on the determination of extreme blade deflection by statistical analysis”, IEA expert meet, RISÆ 2001.
  • Larsen, G.C., Pedersen, B.J., and Hansen, K.S. “Constrained simulation of critical wind gusts by means of wavelets”, EWEA 2002.
  • Hansen, K.S., Larsen, G.C. and Pedersen, B.J. “Analysis of extreme wind shear events”, EWEA 2002.
  • Mandic, D.P., Golz, M., Kuh, A., Obradovic, D. and Tanaka, T. (Editors), Signal Processing Techniques for Knowledge Extraction and Information Fusion, Springer, 2008.
  • Mandic, D.P., Javidi, S., Goh, S.L., Kuh, A. and Aihara, K. "Complex Valued Prediction of Wind Profile Using Augmented Complex Statistics", accepted for Renewable Energy , March 2008.
  • Goh, S.L., Chen, M., Popovic, D.H., Aihara, K., Obradovic, D. and Mandic, D.P. "Complex Valued Forecasting of Wind Profile", Renewable Energy, vol. 31, pp. 1733-1750, 2006.
  • Aymerich, F., Dore, F. and Prolo, P. “Prediction of impact-induced delamination in cross-ply composite laminates using cohesive interface elements”, Composites science and technology, in press, 2008.
  • Aymerich, F., Pani, C.. and Prolo, P. “Damage response of stitched cross-ply laminates under impact loadings”, Engineering Fracture Mechanics, 74(4): 500-514, 2007.