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  • Book chapter
    Gross R, Heptonstall P, Leach M, Skea J, Anderson D, Green Tet al., 2012,

    The uk energy research centre review of the costs and impacts of intermittency

    , Renewable Electricity and the Grid: The Challenge of Variability, Pages: 73-94
  • Book chapter
    Silva V, Stanojevic V, Aunedi M, Pudjianto D, Strbac Get al., 2012,

    Smart domestic appliances as enabling technology for demand-side integration: Modelling, value and drivers

    , The Future of Electricity Demand: Customers, Citizens and Loads, Pages: 243-281

    Introduction: Decarbonization of future electricity systems requires a significant proportion of electricity consumption to be supplied from nuclear, carbon capture and storage (CCS) plant and renewable sources. Since nuclear and CCS plant are less flexible than, for instance, natural gas-fired combined cycle plants, and renewable sources such as wind, solar and tidal are intermittent, this creates serious challenges to the way the current system is operated. In order to ensure that the system is capable of maintaining a supply and demand balance, the reduction in generation flexibility as a result of incorporating more low-carbon generation technologies has to be balanced with an increase in flexibility from demand. Consequently demand-side flexibility needs to be developed and smart domestic appliances can play an important role (IEA, 2008). In order to gain insight and understanding of the role and value of smart appliances, comprehensive studies of its economic value are required. Such analysis needs to consider relevant parameters such as consumers' behaviour and acceptance, appliance technology and future scenarios of power-system development regarding flexibility of generation and network capacity. This chapter presents a framework to assess the value of smart appliances, as flexible demand, to increase system flexibility and to provide new sources of ancillary services. The increased flexibility will improve system efficiency, reduce operating costs and carbon emissions, and increase utilization of renewable sources; from these benefits the value of smart appliances will be derived. However, any decrease in the value of energy services received as a result of, for instance, inconvenience caused by curtailment or rescheduling of consumption should, in theory, be deducted from such benefits. At the core of the framework is a model that simulates annual system operation, scheduling simultaneously generation and smart appliances, in order to minimize system oper
  • Conference paper
    Boem F, Ferrari RMG, Parisini T, Polycarpou MMet al., 2012,

    Distributed fault diagnosis for input-output continuous-time nonlinear systems

    , Pages: 1089-1094, ISSN: 1474-6670

    In this paper, new results on distributed fault diagnosis of continuous-time nonlinear systems with partial state measurements are proposed. Following an overlapping decomposition framework, the dynamics of a nonlinear uncertain large-scale dynamical systems is described as the interconnection of several subsystems. Each subsystem is monitored by its own Local Fault Diagnoser, based on a set of local estimators. A consensus-based protocol is used to improve the detectability and the isolability of faults affecting variables shared among different subsystems because of the overlapping decomposition. A sufficient condition assuring the convergence of the estimation errors is derived. Time-varying threshold functions guaranteeing no false-positive alarms and theoretical results containing detectability and isolability conditions are presented. © 2012 IFAC.
  • Journal article
    Hartley EN, Jerez JL, Suardi A, Maciejowski JM, Kerrigan EC, Constantinides GAet al., 2012,

    Predictive control of a Boeing 747 aircraft using an FPGA

    , IFAC Proceedings Volumes (IFAC-PapersOnline), Vol: 4, Pages: 80-85, ISSN: 1474-6670

    New embedded predictive control applications call for more eficient ways of solving quadratic programs (QPs) in order to meet demanding real-time, power and cost requirements. A single precision QP-on-a-chip controller is proposed, implemented in afield-programmable gate array (FPGA) with an iterative linear solver at its core. A novel offline scaling procedure is introduced to aid the convergence of the reduced precision solver. The feasibility of the proposed approach is demonstrated with a real-time hardware-in-the-loop (HIL) experimental setup where an ML605 FPGA board controls a nonlinear model of a Boeing 747 aircraft running on a desktop PC through an Ethernet link. Simulations show that the quality of the closed-loop control and accuracy of individual solutions is competitive with a conventional double precision controller solving linear systems using a Riccati recursion. © 2012 IFAC.
  • Journal article
    Zhong WX, Hui SY, Ho WC, Liu Xet al., 2012,

    Using Self-Driven AC-DC Synchronous Rectifier as a Direct Replacement for Traditional Power Diode Rectifier

    , IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 59, Pages: 392-401, ISSN: 0278-0046
  • Journal article
    Chaudhuri NR, Chakraborty D, Chaudhuri B, 2012,

    Damping Control in Power Systems Under Constrained Communication Bandwidth: A Predictor Corrector Strategy

    , IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, Vol: 20, Pages: 223-231, ISSN: 1063-6536
  • Journal article
    Li Z, Mazars E, Zhang Z, Jaimoukha IM, Li Z, Mazars E, Zhang Z, Jaimoukha IMet al., 2012,

    State–space solution to the ℋ−/ℋ∞ fault-detection problem

    , International Journal of Robust and Nonlinear Control, Vol: 22, Pages: 282-299

    In this paper we give an optimal state–space solution to the ℋ−/ℋ∞ fault-detection (FD) problem for linear time invariant dynamic systems. An optimal ℋ−/ℋ∞ FD filter minimizes the sensitivity of the residual signal to disturbances while maintaining a minimum level of sensitivity to faults. We provide a state–space realization of the optimal filter in an observer form using the solution of a linear matrix inequalities optimization problem. We also show that, through the use of weighting filters, the detection performance can be enhanced and some assumptions can be removed. Two numerical examples are given to illustrate the algorithm.
  • Conference paper
    Evangelou SA, Shukla A, 2012,

    Advances in the modelling and control of series hybrid electric vehicles

    , American Control Conference (ACC), Publisher: IEEE COMPUTER SOC, Pages: 527-534, ISSN: 0743-1619
  • Conference paper
    Papadaskalopoulos D, Strbac G, 2012,

    Decentralized Participation of Electric Vehicles in Network-Constrained Market Operation

    , 3rd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies Europe (ISGT Europe), Publisher: IEEE, ISSN: 2165-4816
  • Journal article
    Tao X, Chen H, Hui SYR, 2012,

    Modeling of Junction Temperature and Forward Voltage of LED Devices With Externally Measurable Variables

    , 2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), Pages: 4242-4245, ISSN: 2329-3721
  • Journal article
    Li S, Hui SYR, 2012,

    Variants of Current-Mirror Circuits for Reducing Current Imbalance in Parallel LED Strings

    , 2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), Pages: 3562-3567, ISSN: 2329-3721
  • Journal article
    Lee CK, Zhong WX, Hui SYR, 2012,

    Recent Progress in Mid-Range Wireless Power Transfer

    , 2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), Pages: 3819-3824, ISSN: 2329-3721
  • Journal article
    Duffy M, Kulkarni S, Roy S, Ng WM, Hui Ret al., 2012,

    Investigating the scope for electroplated magnetic alloys in shielding of PCBs

    , 2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), Pages: 401-406, ISSN: 2329-3721
  • Conference paper
    Jerez JL, Constantinides GA, Kerrigan EC, 2012,

    Towards a Fixed Point QP Solver for Predictive Control

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 675-680, ISSN: 0743-1546
  • Conference paper
    Angeli D, de Paola A, Strbac G, 2012,

    Distributed frequency control by means of responsive wind generation

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 5834-5839, ISSN: 0743-1546
  • Conference paper
    Angeli D, Astolfi A, 2012,

    A stochastic approach to distributed power frequency control by means of smart appliances

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6896-6901, ISSN: 0743-1546
  • Conference paper
    Astolfi A, Praly L, 2012,

    A weak version of the small-gain theorem

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 4586-4590, ISSN: 0743-1546
  • Conference paper
    Mylvaganam T, Sassano M, Astolfi A, 2012,

    Approximate Solutions to a Class of Nonlinear Differential Games

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6489-6494, ISSN: 0743-1546
  • Conference paper
    Sassano M, Astolfi A, 2012,

    Dynamic Generalized Controllability and Observability Functions with Applications to Model Reduction

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 1609-1614, ISSN: 0743-1546
  • Conference paper
    Chang H, Moog CH, Astolfi A, 2012,

    A Control Systems Approach to HIV Prevention with Impulsive Control Input

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 4912-4917, ISSN: 0743-1546
  • Conference paper
    Angeli D, Sontag ED, 2012,

    Remarks on the invalidation of biological models using monotone systems theory

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 2989-2994, ISSN: 0743-1546
  • Conference paper
    Boem F, Xu Y, Fischione C, Parisini Tet al., 2012,

    A Distributed Estimation Method for Sensor Networks Based on Pareto Optimization

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 775-781, ISSN: 0743-1546
  • Journal article
    Rawlings JB, Angeli D, Bates CN, 2012,

    Fundamentals of Economic Model Predictive Control

    , 2012 IEEE 51ST ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), Pages: 3851-3861, ISSN: 0743-1546
  • Journal article
    Chaillet A, Angeli D, Ito H, 2012,

    Strong iISS: combination of iISS and ISS with respect to small inputs

    , 2012 IEEE 51ST ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), Pages: 2256-2261, ISSN: 0743-1546
  • Conference paper
    Gan CK, Low SY, Pudjianto D, Strbac Get al., 2012,

    Techno-economic appraisal of alternative distribution network design options

    , IEEE International Conference on Power and Energy (PECon), Publisher: IEEE, Pages: 829-833
  • Conference paper
    Ortega R, Espinosa-Perez G, Astolfi A, 2012,

    Theory for the User and Application Examples of the Passivity-based Control for AC Electric Machines

    , 21st IEEE International Symposium on Industrial Electronics (ISIE), Publisher: IEEE, Pages: 758-763, ISSN: 2163-5137
  • Conference paper
    Chattopadhyay SK, Chakraborty C, Pal BC, 2012,

    A Hybrid Multilevel Inverter Topology with Third Harmonic Injection for Grid Connected Photovoltaic Central Inverters

    , 21st IEEE International Symposium on Industrial Electronics (ISIE), Publisher: IEEE, Pages: 1736-1741, ISSN: 2163-5137
  • Conference paper
    Wee T-C, Astolfi A, Xie M, 2012,

    MODULAR-JOINT DESIGN FOR EFFICIENT WALKING AND MODELING OF A BIPEDAL ROBOT TPINOKIO

    , 14th International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines (CLAWAR 2011), Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: 499-506
  • Conference paper
    Casagrande D, Astolfi A, Ortega R, Langarica Det al., 2012,

    A Solution to the Problem of Transient Stability of Multimachine Power Systems

    , 51st IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 1703-1708, ISSN: 0743-1546
  • Conference paper
    Chattopadhyay SK, Chakraborty C, Pal BC, 2012,

    Cascaded H-Bridge & Neutral Point Clamped Hybrid Asymmetric Multilevel Inverter Topology for Grid Interactive Transformerless Photovoltaic Power Plant

    , 38th Annual Conference on IEEE-Industrial-Electronics-Society (IECON ), Publisher: IEEE, Pages: 5074-5079, ISSN: 1553-572X

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