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Journal articleZhong WX, Liu X, Hui SYR, 2011,
A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems With Free-Positioning and Localized Charging Features
, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 58, Pages: 4136-4144, ISSN: 0278-0046- Author Web Link
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- Citations: 193
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Journal articleLee CK, Li S, Hui SYR, 2011,
A Design Methodology for Smart LED Lighting Systems Powered By Weakly Regulated Renewable Power Grids
, IEEE TRANSACTIONS ON SMART GRID, Vol: 2, Pages: 548-554, ISSN: 1949-3053- Author Web Link
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- Citations: 66
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Journal articleCastro M, Pudjianto D, Djapic P, et al., 2011,
Reliability-driven transmission investment in systems with wind generation
, IET GENERATION TRANSMISSION & DISTRIBUTION, Vol: 5, Pages: 850-859, ISSN: 1751-8687- Author Web Link
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- Citations: 5
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Journal articleZhong WX, Choi WP, Ho WWC, et al., 2011,
Generalized Self-Driven AC-DC Synchronous Rectification Techniques for Single- and Multiphase Systems
, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 58, Pages: 3287-3297, ISSN: 0278-0046- Author Web Link
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- Citations: 3
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Journal articleKondoh J, Shafiu A, Jenkins N, et al., 2011,
Investigation of Direct Load Management Scheme with Consideration of End-User Comfort
, ELECTRICAL ENGINEERING IN JAPAN, Vol: 176, Pages: 19-28, ISSN: 0424-7760 -
Journal articleMayne DQ, Kerrigan EC, van Wyk EJ, et al., 2011,
Tube-based robust nonlinear model predictive control
, International Journal of Robust and Nonlinear Control, Vol: 21, Pages: 1341-1353, ISSN: 1099-1239This paper extends tube-based model predictive control of linear systems to achieve robust control of nonlinear systems subject to additive disturbances. A central or reference trajectory is determined by solving a nominal optimal control problem. The local linear controller, employed in tube-based robust control of linear systems, is replaced by an ancillary model predictive controller that forces the trajectories of the disturbed system to lie in a tube whose center is the reference trajectory thereby enabling robust control of uncertain nonlinear systems to be achieved.
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Journal articleGomis-Bellmunt O, Junyent-Ferre A, Sumper A, et al., 2011,
Control of a Wind Farm Based on Synchronous Generators With a Central HVDC-VSC Converter
, IEEE Transactions on Power Systems, Vol: 26, Pages: 1632-1640, ISSN: 1558-0679A control scheme for wind farms based on synchronousgenerators connected to a single power converter ispresented. The scheme is applicable to HVDC interfaced offshoreor remote wind farms. The proposed control scheme is based oncomputing the optimal wind farm electrical frequency dependingon the different incoming wind speeds. The power converterregulates the system frequency by adjusting the power injected tothe HVDC circuit. Fault ride-through is also possible by reducingrapidly the injected active power. The proposed scheme is validatedby means of simulations with a wind farm composed of fourwind turbines.
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Journal articleJones BL, Kerrigan EC, Morrison JF, et al., 2011,
Flow estimation of boundary layers using DNS-based wall shear information
, International Journal of Control, Vol: 84, Pages: 1310-1325, ISSN: 1366-5820This article investigates the problem of obtaining a state-space model of the disturbance evolution that precedes turbulent flow across aerodynamic surfaces. This problem is challenging since the flow is governed by nonlinear, partial differential-algebraic equations for which there currently exists no efficient controller/estimator synthesis techniques. A sequence of model approximations is employed to yield a linear, low-order state-space model, to which standard tools of control theory can be applied. One of the novelties of this article is the application of an algorithm that converts a system of differential-algebraic equations into one of ordinary differential equations. This enables straightforward satisfaction of boundary conditions whilst dispensing with the need for parallel flow approximations and velocity–vorticity transformations. The efficacy of the model is demonstrated by the synthesis of a Kalman filter that clearly reconstructs the characteristic features of the flow, using only wall velocity gradient information obtained from a high-fidelity nonlinear simulation.
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Journal articleHowey DA, Bansal A, Holmes AS, 2011,
Design and performance of a cm-scale shrouded wind turbine for energy harvesting
, Smart Materials and Structures, Vol: 20, Pages: 1-12 -
Journal articleHowell SD, Duck PW, Hazel A, et al., 2011,
A partial differential equation system for modelling stochastic storage in physical systems with applications to wind power generation
, IMA JOURNAL OF MANAGEMENT MATHEMATICS, Vol: 22, Pages: 231-252, ISSN: 1471-678X- Author Web Link
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- Citations: 9
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Journal articleHowey DA, Holmes AS, Pullen KR, 2011,
Measurement and CFD Prediction of Heat Transfer in Air-Cooled Disc-Type Electrical Machines
, IEEE T IND APPL, Vol: 47, Pages: 1716-1723, ISSN: 0093-9994 -
Journal articleGan CK, Mancarella P, Pudjianto D, et al., 2011,
Statistical appraisal of economic design strategies of LV distribution networks
, ELECTRIC POWER SYSTEMS RESEARCH, Vol: 81, Pages: 1363-1372, ISSN: 0378-7796- Author Web Link
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- Citations: 31
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Journal articleAngeli D, Praly L, 2011,
Stability Robustness in the Presence of Exponentially Unstable Isolated Equilibria
, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 56, Pages: 1582-1592, ISSN: 0018-9286- Author Web Link
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- Citations: 32
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PatentTrainer DR, Soto-Sanchez DE, Green TC, et al., 2011,
DC Network Active Filtering using VSC
, WO 2,013,000,510 -
Journal articleChen W, Hui SYR, 2011,
A Dimmable Light-Emitting Diode (LED) Driver With Mag-Amp Postregulators for Multistring Applications
, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 26, Pages: 1714-1722, ISSN: 0885-8993- Author Web Link
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- Citations: 70
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Journal articleTook CC, Strbac G, Aihara K, et al., 2011,
Quaternion-valued short-term joint forecasting of three-dimensional wind and atmospheric parameters
, RENEWABLE ENERGY, Vol: 36, Pages: 1754-1760, ISSN: 0960-1481- Author Web Link
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- Citations: 74
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Journal articleChang H, Astolfi A, Shim H, 2011,
A control theoretic approach to malaria immunotherapy with state jumps
, AUTOMATICA, Vol: 47, Pages: 1271-1277, ISSN: 0005-1098- Author Web Link
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- Citations: 11
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Journal articleVinter RB, Bettiol P, 2011,
Trajectories satisfying a state constraint: improved estimates and new non-degeneracy conditions
, IEEE Transactions on Automatic Control, Vol: 56, Pages: 1090-1096For a state-constrained control system described by a differential inclusion and a single functional inequality state constraint, it is known that, under an `inward pointing condition', the $W^{1,1}$ distance of an arbitrary state trajectory to the set of state trajectories, which have the same left endpoint and which satisfy the state constraint, is linearly related to the state constraint violation. In this paper we show that, in situations where the state-constrained control system is described instead by a controlled differential equation, this estimate can be improved by replacing the $W^{1,1}$ distance on state trajectories by the Ekeland metric of the distance of the control functions. A counter-example reveals that a refinement of this nature is not in general valid for state constrained differential inclusions. Finally we show how the refined estimates may be used to establish new conditions for non-degeneracy of the state constrained Maximum Principle, in circumstances when the data depends discontinuously on the control variable.
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Journal articleLaila DS, Lovera M, Astolfi A, 2011,
A discrete-time observer design for spacecraft attitude determination using an orthogonality-preserving algorithm
, AUTOMATICA, Vol: 47, Pages: 975-980, ISSN: 0005-1098- Author Web Link
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- Citations: 27
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Conference paperHey J, Howey DA, Martinez-Botas R, et al., 2011,
Transient thermal modelling of an Axial Flux Permanent Magnet (AFPM) machine with model parameter optimisation using a Monte Carlo method
, Vehicle Thermal Management Systems VTMS 10, Publisher: IMechE -
Journal articleOrtega R, Praly L, Astolfi A, et al., 2011,
Estimation of Rotor Position and Speed of Permanent Magnet Synchronous Motors With Guaranteed Stability
, IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 19, Pages: 601-614, ISSN: 1063-6536- Author Web Link
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- Citations: 121
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Journal articleNorman AK, Kerrigan EC, McKeon BJ, 2011,
The effect of small-amplitude time-dependent changes to the surface morphology of a sphere
, JOURNAL OF FLUID MECHANICS, Vol: 675, Pages: 268-296, ISSN: 0022-1120- Author Web Link
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- Citations: 17
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Journal articleHowey DA, Martinez-Botas RF, Lytton L, et al., 2011,
Comparative measurements of the energy consumption of 51 electric, hybrid and internal combustion engine vehicles
, Transportation Research Part D, Vol: 6, Pages: 459-464 -
Journal articleCouchman IJ, Kerrigan EC, Boehm C, 2011,
Model reduction of homogeneous-in-the-state bilinear systems with input constraints
, AUTOMATICA, Vol: 47, Pages: 761-768, ISSN: 0005-1098- Author Web Link
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- Citations: 9
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Journal articleClark JMC, Kountouriotis PA, Vinter RB, 2011,
A Gaussian Mixture Filter for Range-Only Tracking
, IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 56, Pages: 602-613, ISSN: 0018-9286- Author Web Link
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- Citations: 19
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Journal articlePudjianto D, Mancarella P, Gan CK, et al., 2011,
Closed loop price signal based market operation within Microgrids
, EUROPEAN TRANSACTIONS ON ELECTRICAL POWER, Vol: 21, Pages: 1310-1326, ISSN: 1430-144X- Author Web Link
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- Citations: 8
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Journal articleParisini T, 2011,
Untitled
, IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 19, Pages: 245-246, ISSN: 1063-6536 -
Journal articleSchwaegerl C, Tao L, Mancarella P, et al., 2011,
A multi-objective optimization approach for assessment of technical, commercial and environmental performance of microgrids
, EUROPEAN TRANSACTIONS ON ELECTRICAL POWER, Vol: 21, Pages: 1271-1290, ISSN: 1430-144X- Author Web Link
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- Citations: 27
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Conference paperJerez J, Constantinides GA, Kerrigan EC, 2011,
An FPGA Implementation of a Sparse Quadratic Programming Solver for Constrained Predictive Control
, ACM International Symposium on Field Programmable Gate Arrays, Publisher: ACM -
Journal articleChaudhuri NR, Chaudhuri B, 2011,
Damping and Relative Mode-Shape Estimation in Near Real-Time Through Phasor Approach
, IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 26, Pages: 364-373, ISSN: 0885-8950- Author Web Link
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- Citations: 26
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