Publications
Results
- Showing results for:
- Reset all filters
Search results
-
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
- Open Access Link
- Cite
- Citations: 27
-
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
- Cite
- Citations: 27
-
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 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 -
Conference paperStrbac G, Moreno R, Pudjianto D, et al., 2011,
Towards a Risk-Based Network Operation and Design Standards
, IEEE Power Engineering Society 2011 General Meeting -
PatentTrainer DR, Soto-Sanchez DE, Green TC, et al., 2011,
DC Network Active Filtering using VSC
, WO 2,013,000,510 -
Journal articleWu R, Sin JKO, Hui SY, 2011,
Novel silicon-embedded coreless transformer for on-chip isolated signal transfer
, IEEE Magnetics Letters, Vol: 2, ISSN: 1949-307XIn this letter, a novel silicon-embedded coreless transformer is proposed and demonstrated. The transformer is fabricated in the thick bottom layer of a silicon substrate and connected to the frontside through vias opened in the thin top layer where all other components of the system can be fabricated. A 5-turn coreless transformer fabricated using this monolithic transformer technology achieves a small area of 2 mm2 and a good voltage gain of larger than -0.8 dB (load = 50 Ω, best reported so far) from 12 to 100 MHz. This technology shows great potential for on-chip isolated signal transfer. © 2011 IEEE.
-
Journal articleMayne DQ, 2011,
Jason L. Speyer and David H. Jacobson: Primer on Optimal Control Theory
, JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, Vol: 149, Pages: 678-680, ISSN: 0022-3239 -
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
- Cite
- Citations: 67
-
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
- Cite
- Citations: 9
-
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
- Cite
- Citations: 60
-
Journal articleVinter RB, Bettiol P,
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.
-
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
- Cite
- Citations: 25
-
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
- Cite
- Citations: 17
-
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
- Open Access Link
- Cite
- Citations: 114
-
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 articleMoreno R, Barroso L, Rudnick H, et al., 2011,
Regulating Generation Investment in Latin America: Future Challenges
, IAEE Energy Forum, Vol: 20, Pages: 35-39 -
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
- Open Access Link
- Cite
- Citations: 9
-
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
- Cite
- Citations: 27
-
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
- Cite
- Citations: 8
-
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
- Cite
- Citations: 16
-
Journal articleParisini T, 2011,
Untitled
, IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 19, Pages: 245-246, ISSN: 1063-6536 -
Journal articleHui SYR, Lin DY, Ng WM, et al., 2011,
A "Class-A2" Ultra-Low-Loss Magnetic Ballast for T5 Fluorescent Lamps-A New Trend for Sustainable Lighting Technology
, IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 26, Pages: 622-629, ISSN: 0885-8993- Author Web Link
- Cite
- Citations: 6
-
Journal articleCasagrande D, Astolfi A, Ortega R, 2011,
Asymptotic stabilization of passive systems without damping injection: A sampled integral technique
, AUTOMATICA, Vol: 47, Pages: 262-271, ISSN: 0005-1098- Author Web Link
- Cite
- Citations: 19
-
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
- Open Access Link
- Cite
- Citations: 20
-
Journal articleThambirajah J, Thornhill NF, Pal BC, 2011,
A Multivariate Approach Towards Inter-Area Oscillation Damping Estimation Under Ambient Conditions Via Independent Component Analysis And Random Decrement
, IEEE Transactions on Power Systems, Vol: 26, Pages: 315-322, ISSN: 0885-8950This paper presents a novel approach to the monitoring of interarea oscillation frequency and damping using multivariate analysis techniques. A two-step method is presented 1) independent component analysis for the detection of interarea modes and estimation of their frequencies and 2) random decrement for the estimation of mode damping. The method is applied to real measurements taken in Finland within the Nordic Power System to estimate the critical interarea mode frequency and damping in the system.
-
PatentPlet CA, Green TC, Walton CM, 2011,
Electrical Devices With Improved Fault Current Handling Capabilities
An electrical device comprising: first and second windings that are magnetically coupled such that, during normal operation, magnetic fields of the first and second windings interact and currents flow through the first and second windings; and a power controller arranged to control the current in the second winding in a fault situation, so as to reduce or limit the current magnitude flowing in the first winding or the second winding, or to synchronise the magnetic field of the second winding with the magnetic field of the first winding and thereby reduce their interaction; wherein the second winding incorporates a tap changer arrangement operable to reduce the number of turns in the second winding through which the current in the second winding flows, and thereby decrease the mutual inductance between the first and second windings and reduce the voltage magnitude required of the power controller in order to exercise control in the fault situation.Also provided is a method of operating such a device, and a tap changer arrangement that is well suited for use with such a device
-
Conference paperAcha S, Green TC, Shah N, 2011,
Optimal charging strategies of electric vehicles in the UK power market
, 2011 IEEE PES Innovative Smart Grid Technologies (ISGT), Publisher: IEEE, Pages: 1-8In order to gain the most from their deployment, it is imperative for stakeholders to exploit the main benefits electric vehicles bring to utilities. Therefore, this paper focuses on the aspects required to model the management of electricity supply for electric vehicles. The framework presented details a time coordinated optimal power flow (TCOPF) tool to illustrate the tradeoffs distribution network operators (DNO) might encounter when implementing various load control approaches of electric vehicles. Within an UK context, a case study is performed where the TCOPF tool functions as the intermediary entity that coordinates cost-effective interactions between power markets, network operators, and the plugged vehicles. Results depict the stochastic but optimal charging patterns stakeholders might visualise from electric vehicles in local networks as they are operated to reduce energy and emission costs. Furthermore, results show current emission costs have a negligible weight in the optimisation process when compared to wholesale electricity costs.
-
Conference paperAhmed S, Kerrigan EC, Jaimoukha IM, 2011,
Semidefinite Relaxation of a Robust Static Attitude Determination Problem
, 50th IEEE Conference of Decision and Control (CDC)/European Control Conference (ECC), Publisher: IEEE, Pages: 5337-5342, ISSN: 0743-1546
This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.