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  • Conference paper
    Hasan A, Kerrigan EC, Constantinides GA, 2010,

    An ISS and l-stability Approach to Forward Error Analysis of Iterative Numerical Algorithms

    , IEEE Control and Decision Conference
  • Conference paper
    Howey DA, Holmes AS, Pullen KR, 2010,

    Prediction and measurement of heat transfer in air-cooled disc-type electrical machines

    , 5th IET International Conference on Power Electronics, Machines and Drives (PEMD 2010), Publisher: IET

    Accurate thermal analysis of axial flux permanent magnet (AFPM) machines is crucial in predicting maximum power output. Stator convective heat transfer is one of the most important and least investigated heat transfer mechanisms and is the focus of this paper. Experimental measurements were undertaken using a thin-film electrical heating method, providing radially resolved steady state heat transfer data from an experimental rotor-stator system designed as a geometric mockup of a through-flow ventilated AFPM machine. The measurements are compared with computational fluid dynamics (CFD) simulations using both 2D axisymmetric and 3D models. These were found to give a conservative estimate of heat transfer, with inaccuracies near the edge and in the transitional flow regime. Predicted stator heat transfer was found to be relatively insensitive to the choice of turbulence model and the SST model was used for most of the simulations.
  • Conference paper
    Pipelzadeh Y, Chaudhuri B, Green TC, 2010,

    Wide-area Power Oscillation Damping Control through HVDC: A case study on the Australian equivalent network

    , IEEE Power and Energy Society General Meeting 2010, Minnesota, USA
  • Journal article
    Zhang X, Polycarpou MM, Parisini T, 2010,

    Adaptive fault diagnosis and fault-tolerant control of MIMO nonlinear uncertain systems

    , INTERNATIONAL JOURNAL OF CONTROL, Vol: 83, Pages: 1054-1080, ISSN: 0020-7179
  • Journal article
    Chang H, Astolfi A, Shim H, 2010,

    A Control Theoretic Approach to Venom Immunotherapy with State Jumps

    , 2010 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC), Pages: 742-745, ISSN: 1557-170X
  • Conference paper
    Arif J, Chaudhuri NR, Ray S, Chaudhuri Bet al., 2010,

    Self-tuning Feedback Linearization Controller for Power Oscillation Damping

    , 2010 IEEE PES Transmission and Distribution Conference and Exposition - Smart Solutions for a Changing World, Publisher: IEEE
  • Conference paper
    Acha S, Green TC, Shah N, 2010,

    Effects of Optimised Plug-in Hybrid Vehicle Charging Strategies on Electric Distribution Network Losses

    , 2010 IEEE PES Transmission and Distribution Conference and Exposition - Smart Solutions for a Changing World, Publisher: IEEE
  • Conference paper
    Yee SK, Pudjianto D, Milanovic JV, Hughes FMet al., 2010,

    The Economic Value of Advanced Governor Control

    , 2010 IEEE PES Transmission and Distribution Conference and Exposition - Smart Solutions for a Changing World, Publisher: IEEE
  • Conference paper
    Cuzzola FA, Parisini T, 2010,

    A Multivariable Control Scheme for a Hot Dip Galvanising Line Process

    , IEEE International Conference on Control Applications Part of 2010 IEEE Multi-Conference on Systems and Control, Publisher: IEEE, Pages: 938-943, ISSN: 1085-1992
  • Conference paper
    Chaudhuri NR, Domahidi A, Chaudhuri B, Majumder R, Korba P, Ray S, Uhlen Ket al., 2010,

    Power Oscillation Damping Control Using Wide-Area Signals: A Case Study on Nordic Equivalent System

    , 2010 IEEE PES Transmission and Distribution Conference and Exposition - Smart Solutions for a Changing World, Publisher: IEEE
  • Conference paper
    Chang H, Astolfi A, Shim H, 2010,

    Immunotherapy for HIV and Malaria: A Control Theoretic Approach with State Jumps

    , American Control Conference, Publisher: IEEE, Pages: 474-479, ISSN: 0743-1619
  • Conference paper
    Chan N, Young T, Brindley H, Chaudhuri B, Ekins-Daukes NJet al., 2010,

    VARIATION IN SPECTRAL IRRADIANCE AND THE CONSEQUENCES FOR MULTI-JUNCTION CONCENTRATOR PHOTOVOLTAIC SYSTEMS

    , 35th IEEE Photovoltaic Specialists Conference, Publisher: IEEE, ISSN: 0160-8371
  • Journal article
    Singh R, Pal BC, Jabr RA, 2010,

    Distribution System State Estimation Through Gaussian Mixture Model of the Load as Pseudo Measurement

    , IET Generation, Transmission and Distribution, Vol: 4, Pages: 50-59

    This study presents an approach to utilise the loads as pseudo-measurements for the purpose of distribution system state estimation (DSSE). The load probability density function (pdf) in the distribution network shows a number of variations at different nodes and cannot be represented by any specific distribution. The approach presented in this study represents all the load pdfs through the Gaussian mixture model (GMM). The expectation maximisation (EM) algorithm is used to obtain the parameters of the mixture components. The standard weighted least squares (WLS) algorithm utilises these load models as pseudomeasurements. The effectiveness of WLS is assessed through some statistical measures such as bias, consistency and quality of the estimates in a 95-bus generic distribution network model.
  • Journal article
    Offer GJ, Howey DA, Contestabile M, Clague R, Brandon NPet al., 2010,

    Comparative analysis of battery electric, hydrogen fuel cell and hybrid vehicles in a future sustainable road transport system

    , Energy Policy, Vol: 38, Pages: 24-29

    This paper compares battery electric vehicles (BEV) to hydrogen fuel cell electric vehicles (FCEV) and hydrogen fuel cell plug-in hybrid vehicles (FCHEV). Qualitative comparisons of technologies and infrastructural requirements, and quantitative comparisons of the lifecycle cost of the powertrain over 100,000 mile are undertaken, accounting for capital and fuel costs. A common vehicle platform is assumed. The 2030 scenario is discussed and compared to a conventional gasoline-fuelled internal combustion engine (ICE) powertrain. A comprehensive sensitivity analysis shows that in 2030 FCEVs could achieve lifecycle cost parity with conventional gasoline vehicles. However, both the BEV and FCHEV have significantly lower lifecycle costs. In the 2030 scenario, powertrain lifecycle costs of FCEVs range from $7360 to $22,580, whereas those for BEVs range from $6460 to $11,420 and FCHEVs, from $4310 to $12,540. All vehicle platforms exhibit significant cost sensitivity to powertrain capital cost. The BEV and FCHEV are relatively insensitive to electricity costs but the FCHEV and FCV are sensitive to hydrogen cost. The BEV and FCHEV are reasonably similar in lifecycle cost and one may offer an advantage over the other depending on driving patterns. A key conclusion is that the best path for future development of FCEVs is the FCHEV.
  • Journal article
    Chaudhuri NR, Ray S, Majumder R, Chaudhuri Bet al., 2010,

    A New Approach to Continuous Latency Compensation With Adaptive Phasor Power Oscillation Damping Controller (POD)

    , IEEE Transactions on Power Systems
  • Journal article
    Singh R, Pal BC, Jabr RA, 2010,

    Statistical Representation of Distribution System Loads Using Gaussian Mixture Model

    , IEEE Transactions on Power Systems, Vol: 25, Pages: 29-37

    This paper presents a probabilistic approach for statistical modeling of the loads in distribution networks. In a distribution network, the probability density functions (pdfs) of loads at different buses show a number of variations and cannot be represented by any specific distribution. The approach presented in this paper represents all the load pdfs through Gaussian mixture model (GMM). The expectation maximization (EM) algorithm is used to obtain the parameters of the mixture components. The performance of the method is demonstrated on a 95-bus generic distribution network model.
  • Journal article
    Majumder R, Chaudhuri B, Ghosh A, Ledwich G, Zare Fet al., 2010,

    Improvement of Stability and Load Sharing in an Autonomous Microgrid Using Supplementary Droop Control Loop

    , IEEE Transactions on Power Systems
  • Book chapter
    Mitcheson PD, Toh TT, 2010,

    Power Management Electronics

    , Energy Harvesting for Autonomous Systems, Editors: Beeby, White, Publisher: Artech House Publishers, Pages: 159-209, ISBN: 9781596937185
  • Conference paper
    Zhang Z, Jaimoukha IM, 2010,

    A measurement analysis approach to online fault detection and isolation for linear discrete-time uncertain systems

    , IEEE Conference on Decision and Control, Publisher: IEEE, Pages: 4399-4404, ISSN: 0743-1546

    This work considers a robust fault detection and isolation (FDI) problem for linear discrete-time systems subject to faults, bounded additive disturbances and norm-bounded uncertainties. We propose a receding horizon estimation procedure (which is a dual scheme to Model Predictive Control (MPC)) to solve FDI problems in which the upper and lower bounds on the faults are computed by using a system model, together with input/output measurements over a finite estimation horizon. Then a fault is regarded as detected and isolated if its obtained upper and lower bounds at some sampling instant are both larger than zero or smaller than zero. Linear Matrix Inequality (LMI) optimization techniques are used to obtain the bounds. Moreover, a subsequent-state-estimation technique, together with an estimation horizon update procedure are given to allow the on-line fault detection and isolation process to be operated in an iterative procedure. Finally, the approach is verified using a numerical example.
  • Journal article
    P Falugi, S Olaru and D Dumur, 2010,

    Multi-model predictive control based on LMI: from the adaptation of the state-space model to the analytic description of the control law

    , Vol: 83, Pages: 1548-1563
  • Journal article
    Casson AJ, Yates DC, Smith SJM, Duncan JS, Rodriguez-Villegas Eet al., 2010,

    Wearable Electroencephalography

    , IEEE Engineering in Medicine and Biology Magazine, Vol: 29, Pages: 44-56

    The electroencephalogram (EEG) is a classic noninvasive method for measuring a person's brainwaves and is used in a large number of fields: from epilepsy and sleep disorder diagnosis to brain–computer interfaces (BCIs). Electrodes are placed on the scalp to detect the microvolt-sized signals that result from synchronized neuronal activity within the brain. Current long-term EEG monitoring is generally either carried out as an inpatient in combination with video recording and long cables to an amplifier and recording unit or is ambulatory. In the latter, the EEG recorder is portable but bulky, and in principle, the subject can go about their normal daily life during the recording.
  • Conference paper
    He C, Kiziroglou ME, Yates DC, Yeatman EMet al., 2010,

    MEMS energy harvester for wireless biosensors

    , Pages: 172-175
  • Conference paper
    Ahmad MI, Jaimoukha I, Frangos M, 2010,

    H2 Optimal model reduction of linear dynamical systems

    , IEEE Conference on Decision and Control, Publisher: IEEE, Pages: 5368-5371, ISSN: 0743-1546

    In this paper we consider the H2 optimal model reduction problem which has important applications in system approximation and has received considerable attention in the literature. An important link between special cases of this problem and rational interpolation using Krylov projection methods has been recently established. We use this link to derive a solution in the special case when the original system is single input single output (SISO) and the approximation has first order. We also indicate extensions to higher order approximations. Finally, we give a few examples to illustrate our procedure.
  • Journal article
    Bettiol P, Bressan A, Vinter R, 2010,

    ON TRAJECTORIES SATISFYING A STATE CONSTRAINT: W-1,W-1 ESTIMATES AND COUNTEREXAMPLES

    , Siam Journal on Control and Optimization, Vol: 48, Pages: 4664-4679
  • Conference paper
    Kerrigan EC, Shahzad A, Constantinides GA, 2010,

    Preconditioners for Inexact Interior Point Methods for Predictive Control
  • Journal article
    Lee CK, Su YP, Hui SYR, 2009,

    Multilayer stacked coreless printed spiral winding inductor with wide frequency bandwidth

    , 2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009, Pages: 1002-1009

    In this paper, three types of winding methods for the multi-layer stacked coreless printed spiral winding inductors are studied and evaluated for megahertz operation. They are traditional winding, alternating winding and partial alternating winding. The winding parasitic capacitances of different windings structures are estimated by distributed capacitance models. The electric field energy distributions in the inductors are derived from the voltage profiles to illustrate the relative magnitudes of winding parasitic capacitances. Calculated results show that partial alternating winding has a wide frequency bandwidth with reduced number of through-hole via. All calculated parameters are confirmed with measurements. The results provide useful information for the optimal design of coreless spiral or core-based planar inductors. © 2009 IEEE.
  • Conference paper
    Thorner LDA, Mitcheson PD, Holmes AS, Yeatman EMet al., 2009,

    Scaling Laws for Energy Harvesters in a Marine Environment

    , PowerMEMS 09, Pages: 249-252, ISSN: 2151-3155
  • Conference paper
    Green T, 2009,

    AuRA-NMS: A substation automation project for a potential smart grid

    The smartGrid concept envisages a much more actively controlled distribution network with high asset utilisation and many active elements such as distributed generation, storage and responsive demand. One way of handling the increased control and communication complexity is to decentralise control and place autonomous controllers in substations that have authority to manage tap-changers and generator constraints so as to increase DG capacity while respecting network limits. Such controllers can also perform feeder-level restoration based on local measurement. Such controllers can be gradually introduced as SmartGrid regions within existing networks. The Aura-NMS project is a collaboration of eight UK universities, two network operators and a manufacturer to develop and test these ideas.
  • Conference paper
    Lobato E, Olmos L, Gómez T, Cossent R, Andersen FM, Grohnheit PE, Mancarella P, Pudjianto D, Strbac G, Van Der Welle A, Van Oostvoorn Fet al., 2009,

    Barriers in the implementation of response options aimed at mitigating unpredictability and variability of wind energy

    , Pages: 3239-3244

    Impacts of increasing wind penetration in the overall electricity system are mainly due to two characteristics of intermittent generation - variability and unpredictability (or prediction error). Impacts (both positive and negative) due to variability and unpredictability were assessed in relation to generation, demand, transmission and distribution systems and markets & trade. In order to counteract the impacts of intermittency, a number of technical and organizational response options are available to the market participants. Each available option should be assessed including technical, economical and regulatory aspects of each option. However, barriers and failures in market competition and regulation may hinder the response options to be developed and implemented by market participants. This paper researches on the main regulatory issues that prevent a successful increase in the wind energy penetration. For this purpose a detailed questionnaire has been elaborated and filled up with the views and opinions of the main stakeholders coming from 5 representative European countries: Spain, UK, Denmark, Germany, and Netherlands. Results presented in this papers are part of the on-going project RESPOND supported by the European Commission, Directorate-General for Energy and Transport, under the Energy Intelligent Europe (EIE) 2003-2006 Programme.
  • Conference paper
    Toh TT, Mitcheson PD, Yeatman EM, 2009,

    Wireless Sensor Node Using a Rotational Energy Harvester with Adaptive Power Conversion

    , PowerMEMS 2009, Pages: 273-276, ISSN: 2151-3155

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