All Outputs (258)

Sensor Fault Tolerant Control for a 3-DOF Helicopter Considering Detectability Loss (2023)
Journal Article
Wang, X., Wang, Y., Zhang, Z., Wang, X., & Patton, R. (2023). Sensor Fault Tolerant Control for a 3-DOF Helicopter Considering Detectability Loss. IEEE Transactions on Circuits and Systems I: Regular Papers, https://doi.org/10.1109/TCSI.2023.3303153

This paper proposes a novel active fault tolerant control (FTC) scheme for a 3-degree-of-freedom (3-DOF) helicopter with sensor faults. As a challenge, only attitude angles are considered available, so that when the sensors measuring the elevation/tr... Read More about Sensor Fault Tolerant Control for a 3-DOF Helicopter Considering Detectability Loss.

The wave energy converter control competition (WECCCOMP): Wave energy control algorithms compared in both simulation and tank testing (2023)
Journal Article
Ringwood, J. V., Tom, N., Ferri, F., Yu, Y. H., Coe, R. G., Ruehl, K., Bacelli, G., Shi, S., Patton, R. J., Tona, P., Sabiron, G., Merigaud, A., Ling, B. A., & Faedo, N. (2023). The wave energy converter control competition (WECCCOMP): Wave energy control algorithms compared in both simulation and tank testing. Applied Ocean Research, 138, Article 103653. https://doi.org/10.1016/j.apor.2023.103653

The wave energy control competition established a benchmark problem which was offered as an open challenge to the wave energy system control community. The competition had two stages: In the first stage, competitors used a standard wave energy simula... Read More about The wave energy converter control competition (WECCCOMP): Wave energy control algorithms compared in both simulation and tank testing.

Model Predictive Energy-Maximising Tracking Control for a Wavestar-Prototype Wave Energy Converter (2023)
Journal Article
Li, D., & Patton, R. (2023). Model Predictive Energy-Maximising Tracking Control for a Wavestar-Prototype Wave Energy Converter. Journal of Marine Science and Engineering, 11(7), Article 1289. https://doi.org/10.3390/jmse11071289

To date, one of the main challenges in the wave energy field is to achieve energy-maximizing control in order to reduce the levelized cost of energy (LCOE). This paper presents a model predictive velocity tracking control method based on a hierarchic... Read More about Model Predictive Energy-Maximising Tracking Control for a Wavestar-Prototype Wave Energy Converter.

Application of Semantic Segmentation in High-Impedance Fault Diagnosis Combined Signal Envelope and Hilbert Marginal Spectrum for Resonant Distribution Networks (2023)
Journal Article
Gao, J.-H., Guo, M.-F., Lin, S., & Chen, D.-Y. (2023). Application of Semantic Segmentation in High-Impedance Fault Diagnosis Combined Signal Envelope and Hilbert Marginal Spectrum for Resonant Distribution Networks. Expert Systems with Applications, 231, Article 120631. https://doi.org/10.1016/j.eswa.2023.120631

The diagnosis of high-impedance fault (HIF) is a critical challenge due to the presence of faint signals that exhibit distortion and randomness. In this study, we propose a novel diagnostic approach for HIF based on semantic segmentation of the signa... Read More about Application of Semantic Segmentation in High-Impedance Fault Diagnosis Combined Signal Envelope and Hilbert Marginal Spectrum for Resonant Distribution Networks.

Actuator fault tolerant offshore wind turbine load mitigation control (2023)
Journal Article
Liu, Y., Patton, R. J., & Shi, S. (2023). Actuator fault tolerant offshore wind turbine load mitigation control. Renewable energy, 205, 432-446. https://doi.org/10.1016/j.renene.2023.01.092

Offshore wind turbine (OWT) rotors have large diameters with flexible blade structures which are subject to asymmetrical loads caused by blade flapping and turbulent or unsteady wind flow. Rotor imbalance inevitably leads to enhanced fatigue of blade... Read More about Actuator fault tolerant offshore wind turbine load mitigation control.

Flexible neutral point displacement overvoltage suppression method based on backstepping control in unbalanced distribution networks (2023)
Journal Article
Zheng, Z.-Y., Xu, J.-F., Zhang, B.-L., Wang, H., Guo, M.-F., & Lin, S. (2023). Flexible neutral point displacement overvoltage suppression method based on backstepping control in unbalanced distribution networks. International Journal of Electrical Power & Energy Systems, 148, Article 108950. https://doi.org/10.1016/j.ijepes.2023.108950

Three-phase AC distribution networks are required to operate as symmetrically as possible for optimal performance, but the three-phase-to-ground parameters are asymmetric in the field due to network construction deviation, resulting in the three-phas... Read More about Flexible neutral point displacement overvoltage suppression method based on backstepping control in unbalanced distribution networks.

Electronic Structure and Optical Properties of Strained Type-II InAsxSb1-x/InAs Quantum Dots for Mid-Infrared Applications (2023)
Journal Article
Yeap, G. H., Rybchenko, S., Itskevich, I., Haywood, S., Carrington, P., & Krier, A. (2023). Electronic Structure and Optical Properties of Strained Type-II InAsxSb1-x/InAs Quantum Dots for Mid-Infrared Applications. Defect and Diffusion Forum, 425, 3-8. https://doi.org/10.4028/p-72o15p

InSb-based self-assembled quantum dots (SAQDs) are very promising for the mid-infrared (3-5 μm) optical range. We have analysed the electronic structure and optical properties of InAsxSb1- x/InAs dots. In this paper, we present the results of the mod... Read More about Electronic Structure and Optical Properties of Strained Type-II InAsxSb1-x/InAs Quantum Dots for Mid-Infrared Applications.

An iterative strategy for robust integration of fault estimation and fault-tolerant control (2022)
Journal Article
Lan, J., & Patton, R. (2022). An iterative strategy for robust integration of fault estimation and fault-tolerant control. Automatica : the journal of IFAC, the International Federation of Automatic Control, 145, Article 110556. https://doi.org/10.1016/j.automatica.2022.110556

This paper considers fault estimation (FE) and fault-tolerant control (FTC) for linear parameter varying systems with actuator and sensor faults, uncertainties, and disturbances. The inevitable coupling between the FE and FTC functions needs to be ta... Read More about An iterative strategy for robust integration of fault estimation and fault-tolerant control.

Distributed Antittack Fault-Tolerant Tracking Control for Vehicle Platoon Systems Under Cyber-Physical Threats (2022)
Journal Article
Liu, C., Zhao, J., & Patton, R. J. (2023). Distributed Antittack Fault-Tolerant Tracking Control for Vehicle Platoon Systems Under Cyber-Physical Threats. IEEE Transactions on Industrial Informatics, 19(6), 7825-7834. https://doi.org/10.1109/TII.2022.3171343

Vehicle platoon systems are considered as automatous vehicles in a platoon-based driving pattern in which a following vehicle follows the preceding vehicle and maintains the desired vehicle spacing. This article investigates the leader-following trac... Read More about Distributed Antittack Fault-Tolerant Tracking Control for Vehicle Platoon Systems Under Cyber-Physical Threats.

Locally fitting hyperplanes to high-dimensional data (2022)
Journal Article
Hou, M., & Kambhampati, C. (2022). Locally fitting hyperplanes to high-dimensional data. Neural Computing and Applications, 34(11), 8885-8896. https://doi.org/10.1007/s00521-022-06909-y

Problems such as data compression, pattern recognition and artificial intelligence often deal with a large data sample as observations of an unknown object. An effective method is proposed to fit hyperplanes to data points in each hypercubic subregio... Read More about Locally fitting hyperplanes to high-dimensional data.

Multi-Frequency bands based Pole-to-Ground fault detection method for MMC-Based radial DC distribution systems (2022)
Journal Article
Yang, C., Lin, S., & Guo, M. (2022). Multi-Frequency bands based Pole-to-Ground fault detection method for MMC-Based radial DC distribution systems. International Journal of Electrical Power & Energy Systems, 141, Article 108250. https://doi.org/10.1016/j.ijepes.2022.108250

In a small-current grounding system, the pole-to-ground fault may cause the voltage drop in the fault pole and the voltage rise in the other poles. In flexible DC distribution systems, Severe voltage variation may shorten the insulation lifetime of t... Read More about Multi-Frequency bands based Pole-to-Ground fault detection method for MMC-Based radial DC distribution systems.

Gaussian Distribution-Based Inertial Control of Wind Turbine Generators for Fast Frequency Response in Low Inertia Systems (2022)
Journal Article
Kheshti, M., Lin, S., Zhao, X., Ding, L., Yin, M., & Terzija, V. (2022). Gaussian Distribution-Based Inertial Control of Wind Turbine Generators for Fast Frequency Response in Low Inertia Systems. IEEE Transactions on Sustainable Energy, https://doi.org/10.1109/tste.2022.3168778

Decline of rotating inertia due to the high share of renewable sources cause challenges in controlling grid frequency. With recent grid codes, large-scale wind turbines (WTs) are required to provide frequency support. Existing stepwise inertial contr... Read More about Gaussian Distribution-Based Inertial Control of Wind Turbine Generators for Fast Frequency Response in Low Inertia Systems.

A Decentralized Fault Section Location Method Using Autoencoder and Feature Fusion in Resonant Grounding Distribution Systems (2022)
Journal Article
Li, Z. J., Lin, S., Guo, M. F., & Tang, J. (2022). A Decentralized Fault Section Location Method Using Autoencoder and Feature Fusion in Resonant Grounding Distribution Systems. IEEE systems journal, https://doi.org/10.1109/JSYST.2022.3151630

In industrial applications, the existing fault location methods of resonant grounding distribution systems suffer from low accuracy due to excessive dependence on communication, lack of field data, difficulty in artificial feature extraction and thre... Read More about A Decentralized Fault Section Location Method Using Autoencoder and Feature Fusion in Resonant Grounding Distribution Systems.

Nonlinear modelling and adaptive control of smart rotor wind turbines (2022)
Journal Article
Li, J., Wang, Y., Lin, S., & Zhao, X. (2022). Nonlinear modelling and adaptive control of smart rotor wind turbines. Renewable energy, 186, 677-690. https://doi.org/10.1016/j.renene.2022.01.020

This paper develops a nonlinear mid-fidelity aeroservoelastic model for smart rotor wind turbines and studies the turbulent load alleviation of the wind turbines with trailing edge flaps (TEFs) actuated by a novel proportional-derivative model-free a... Read More about Nonlinear modelling and adaptive control of smart rotor wind turbines.

Modeling and control of anterior–posterior and medial–lateral sways in standing posture (2022)
Journal Article
Hou, M., Fagan, M., Vanicek, N., & Dobson, C. A. (2022). Modeling and control of anterior–posterior and medial–lateral sways in standing posture. Journal of biomechanics, 134, Article 110930. https://doi.org/10.1016/j.jbiomech.2021.110930

To study essential anterior–posterior and medial–lateral sways of the stance caused by rotational movements about the ankle and hip joints, a mathematical model is developed for the 3D postural kinematics and dynamics. The model is in the form of non... Read More about Modeling and control of anterior–posterior and medial–lateral sways in standing posture.

Tidal Turbine Benchmarking Exercise: Environmental Characterisation and Geometry Specification (2022)
Presentation / Conference Contribution
Tucker Harvey, S. W., Chen, X., Rowe, D., Bhavsar, K., Allsop, T., Gilbert, J., Stallard, T., Vogel, C. R., & Willden, R. H. J. (2021, September). Tidal Turbine Benchmarking Exercise: Environmental Characterisation and Geometry Specification. Presented at European Wave and Tidal Energy Conference (EWTEC) 2021, Plymouth, UK

Uncertainty in tidal turbine loading contributes significantly to conservatism in turbine design. This uncertainty originates not only from a lack of knowledge of the flow field at a particular site, but also from lack of understanding of the fundame... Read More about Tidal Turbine Benchmarking Exercise: Environmental Characterisation and Geometry Specification.

Assessments of bilateral asymmetry with application in human skull analysis (2021)
Journal Article
Hou, M., & Fagan, M. J. (2021). Assessments of bilateral asymmetry with application in human skull analysis. PLoS ONE, 16(10), Article e0258146. https://doi.org/10.1371/journal.pone.0258146

As a common feature, bilateral symmetry of biological forms is ubiquitous, but in fact rarely exact. In a setting of analytic geometry, bilateral symmetry is defined with respect to a point, line or plane, and the well-known notions of fluctuating as... Read More about Assessments of bilateral asymmetry with application in human skull analysis.

Polarization properties of Raman scattering by surface phonon polaritons in GaAsP nanowires (2021)
Journal Article
Rybchenko, S. I., Ali, S., Zhang, Y., & Liu, H. (2021). Polarization properties of Raman scattering by surface phonon polaritons in GaAsP nanowires. Journal of Physics D: Applied Physics, 54(47), Article 475109. https://doi.org/10.1088/1361-6463/ac2400

Strong resonant enhancement of Raman scattering on photonic resonance was observed in GaAsP semiconductor nanowires. The enhancement allowed for detailed studies of the surface phonon polariton (SPhP) scattering peak on individual nanowires. In parti... Read More about Polarization properties of Raman scattering by surface phonon polaritons in GaAsP nanowires.

A comparative experimental study of visual brain event-related potentials to a working memory task: virtual reality head-mounted display versus a desktop computer screen (2021)
Journal Article
Aksoy, M., Ufodiama, C. E., Bateson, A. D., Martin, S., & Asghar, A. U. (2021). A comparative experimental study of visual brain event-related potentials to a working memory task: virtual reality head-mounted display versus a desktop computer screen. Experimental Brain Research, 239(10), 3007–3022. https://doi.org/10.1007/s00221-021-06158-w

Virtual reality head mounted display (VR HMD) systems are increasingly utilised in combination with electroencephalography (EEG) in the experimental study of cognitive tasks. The aim of our investigation was to determine the similarities/differences... Read More about A comparative experimental study of visual brain event-related potentials to a working memory task: virtual reality head-mounted display versus a desktop computer screen.

Resonant enhancement of Raman scattering by surface phonon polaritons in GaAs nanowires (2021)
Journal Article
Rybchenko, S. I., Ali, S., Zhang, Y., & Liu, H. (2021). Resonant enhancement of Raman scattering by surface phonon polaritons in GaAs nanowires. Journal of Physics D: Applied Physics, 54(47), Article 475111. https://doi.org/10.1088/1361-6463/ac1a32

Surface optical phonons are normally considered as subtle and poorly reproducible features in the Raman spectra of nanostructured semiconductors, from which little or no information about the sample can be extracted. The present study demonstrates th... Read More about Resonant enhancement of Raman scattering by surface phonon polaritons in GaAs nanowires.