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  • Conference paper
    Falugi P, Olaru S, Dumur D, 2008,

    Explicit robust multi-model predictive control

    , Pages: 1868-1873

    The paper deals with robust predictive control based on a LMI approach. With respect to the well established case of linear models, with a global polytopic uncertainty, in the present approach the conservativeness reduction is assured by allowing different local descriptions of the uncertainty. The prediction model can thus be interpreted as a multi-model description of the plant to be controlled. The techniques is effective for a large class of nonlinear systems embedded into polytopic models. For the practical implementation the construction of suitable (explicit) descriptions of the control law are described upon concrete algorithms. © 2008 IEEE.
  • Journal article
    Toh TT, Mitcheson PD, Holmes AS, Yeatman EMet al., 2008,

    A continuously rotating energy harvester with maximum power point tracking

    , Journal of Micromechanics and Microengineering, Vol: 18
  • Journal article
    Karagiannis D, Astolfi A, 2008,

    Nonlinear adaptive control of systems in feedback form: An alternative to adaptive backstepping

    , SYSTEMS & CONTROL LETTERS, Vol: 57, Pages: 733-739, ISSN: 0167-6911
  • Journal article
    Mitcheson PD, Yeatman EM, Rao GK, Holmes AS, Green TCet al., 2008,

    Energy Harvesting From Human and Machine Motion for Wireless Electronic Devices

    , Proceedings of the IEEE, Vol: 96, Pages: 1457-1486
  • Journal article
    Acosta JA, Ortega R, Astolfi A, Sarras Iet al., 2008,

    A constructive solution for stabilization via immersion and invariance: The cart and pendulum system

    , AUTOMATICA, Vol: 44, Pages: 2352-2357, ISSN: 0005-1098
  • Journal article
    Barklund E, Pogaku N, Prodanovic M, Hernandez-Aramburo C, Green TCet al., 2008,

    Energy Management in Autonomous Microgrid Using Stability-Constrained Droop Control of Inverters

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 23, Pages: 2346-2352, ISSN: 0885-8993
  • Conference paper
    Orukpe PE, Zheng X, Jaimoukha IM, Zolotas AC, Goodall RMet al., 2008,

    Model predictive control based on mixed H2/H∞ control approach for active vibration control of railway vehicles

    , Publisher: Taylor & Francis, Pages: 151-160

    This paper investigates the application of Model Predictive Control (MPC) technology based on mixed H2/H1 control approach for active suspension control of a railway vehicle, the aim being to improve the ride quality of the railway vehicle. Comparisons are made with more conventional control approaches, and the applicability of the linear matrix inequality approach is illustrated via the railway vehicle example.
  • Journal article
    Ray S, Venayagamoorthy GK, Chaudhuri B, Majumder Ret al., 2008,

    Comparison of adaptive critic-based and classical wide-area controllers for power systems

    , IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS, Vol: 38, Pages: 1002-1007, ISSN: 1083-4419
  • Journal article
    Pal BC, Mei F, 2008,

    On the modelling adequacy of the DFIG for small signal stability studies in power systems

    , IET Journal of Renewable Power Generation, Vol: 2, Pages: 181-190

    The dynamics of the doubly fed induction generator (DFIG) with a closed-loop control is analysed. The analysis provides explanations of the impact of the closed-loop control on the DFIG dynamics and relevant modelling requirements for power system stability studies. The discussion considers generic PI controllers for the regulation of rotor speed, reactive power and pitch angle. It is shown that for the closed-loop-controlled DFIG, a simplified model, whereby both stator and rotor dynamics are neglected, is adequate. In such model, stator and rotor variables are algebraic, that is, they change instantaneously and the modelled dynamics are those of the controllers and mechanical parts. The observations and conclusions are obtained from eigenvalue, participation factor and time-domain analysis.
  • Journal article
    Jones CN, Kerrigan EC, Maciejowski JM, 2008,

    On polyhedral projection and parametric programming

    , JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, Vol: 138, Pages: 207-220, ISSN: 0022-3239
  • Journal article
    Angeli D, Chaillet A, 2008,

    Integral Input to State Stable Systems in Cascade

    , Systems & Control Letters, Vol: 57, Pages: 519-527
  • Conference paper
    Ray S, Chaudhuri B, Majumder R, 2008,

    Appropriate signal selection for damping multi-modal oscillations using low order controllers

    , IEEE Power and Energy Society General Meeting
  • Journal article
    Su YP, Liu X, Ron Hui SY, 2008,

    Extended theory on the inductance calculation of planar spiral windings including the effect of double-layer electromagnetic shield

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 23, Pages: 2052-2061, ISSN: 0885-8993
    • Cite
    • Citations: 33
  • Journal article
    Chaudry M, Jenkins N, Strbac G, 2008,

    Multi-time period combined gas and electricity network optimisation

    , ELECTRIC POWER SYSTEMS RESEARCH, Vol: 78, Pages: 1265-1279, ISSN: 0378-7796
  • Journal article
    Casagrande D, Astolfi A, Parisini T, 2008,

    Global asymptotic stabilization of the attitude and angular rates of an underactuated non-simmetric rigid body

    , Automatica, Vol: 44, Pages: 1781-1789
  • Journal article
    Hughes FM, Anaya-Lara O, Ramtharan G, Jenkins N, Strbac Get al., 2008,

    Influence of tower shadow and wind turbulence on the performance of power system stabilizers for DFIG-based wind farms

    , IEEE TRANSACTIONS ON ENERGY CONVERSION, Vol: 23, Pages: 519-528, ISSN: 0885-8969
  • Journal article
    Tanelli M, Astolfi A, Savaresi SM, 2008,

    Robust nonlinear output feedback control for brake by wire control systems

    , Automatica, Vol: 44, Pages: 1078-1087, ISSN: 0005-1098
  • Journal article
    Chang H, Astolfi A, 2008,

    Control of HIV Infection Dynamics

    , IEEE Control Systems Magazine, Vol: 28, Pages: 28-39, ISSN: 0272-1708
  • Conference paper
    Cepeda A, Astolfi A, 2008,

    Control of a planar system with quantized and saturated input/output

    , IEEE International Symposium on Circuits and Systems, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 932-942, ISSN: 1549-8328
  • Journal article
    Zhang X, Polycarpou MM, Parisini T, 2008,

    Design and analysis of a fault isolation scheme for a class of uncertain nonlinear systems

    , ANNUAL REVIEWS IN CONTROL, Vol: 32, Pages: 107-121, ISSN: 1367-5788
  • Journal article
    Goulart PJ, Kerrigan EC, 2008,

    Input-to-state stability of robust receding horizon control with an expected value cost

    , Automatica, Vol: 44, ISSN: 1873-2836

    This paper is concerned with the stability of a class of receding horizon control (RHC) laws for constrained linear discrete-time systems subject to bounded state disturbances and convex state and input constraints. The paper considers the class of finite horizon feedback control policies parameterized as affine functions of the system state, calculation of which can be shown to be tractable via a convex reparameterization. When minimizing the expected value of a finite horizon quadratic cost, we show that the value function is convex. When solving this optimal control problem at each time step and implementing the result in a receding horizon fashion, we provide sufficient conditions under which the closed-loop system is input-to-state stable (ISS).
  • Journal article
    Sontag ED, Angeli D, 2008,

    Translation-invariant monotone systems, and a global convergence result for enzymatic futile cycles

    , Nonlinear Analysis: Real World Applications, Vol: 9, Pages: 128-140, ISSN: 1468-1218
  • Journal article
    Franco E, Magni L, Parisini T, Polycarpou MM, Raimondo DMet al., 2008,

    Cooperative constrained control of distributed agents with nonlinear dynamics and delayed information exchange: A stabilizing receding-horizon approach

    , IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 53, Pages: 324-338, ISSN: 0018-9286
  • Journal article
    Furlan R, Cuzzol FA, Parisini T, 2008,

    Friction compensation in the interstand looper of hot strip mills: A sliding-mode control approach

    , CONTROL ENGINEERING PRACTICE, Vol: 16, Pages: 214-224, ISSN: 0967-0661
  • Conference paper
    Angeli D, 2008,

    Input-Output instability patterns of Chemical Reaction Networks

    , 47th IEEE Conference on Decision and Control, Publisher: IEEE, Pages: 19-24, ISSN: 0191-2216
  • Conference paper
    Castro MJ, Shakoor AA, Pudjianto D, Strbac Get al., 2008,

    Evaluating the capacity value of wind generation in systems with hydro generation

    Wind generation is envisaged to be a major contributor for meeting the targets for renewable energy and environment in various countries. However, the limited contribution of this generation source to system reliability requires increased capacity margins (generation capacity above system's maximum demand). This paper investigates the potential impact on the capacity value of wind generation due to the presence of hydro generation in systems. In order to quantify the adequacy of the overall generation capacity and capacity credit of wind generation in wind-hydro-thermal systems a new methodology based on loss of load expectation (LOLE) is developed. Various studies performed through implementing the new methodology establish that the capacity credit of wind generation can increase by up to 10% due to the support of hydro generation.
  • Conference paper
    Astolfi A, 2008,

    Model reduction by moment matching for nonlinear systems

    , 47th IEEE Conference on Decision and Control, Publisher: IEEE, Pages: 1270-1275, ISSN: 0191-2216
  • Conference paper
    Costa EF, Astolfi A, 2008,

    A Bound for the Error Covariance of the Recursive Kalman Filter with Markov jump parameters

    , 47th IEEE Conference on Decision and Control, Publisher: IEEE, Pages: 1585-1590, ISSN: 0191-2216
  • Conference paper
    Chang H, Astolfi A, 2008,

    Estimation of Immune States in HIV Dynamics

    , 47th IEEE Conference on Decision and Control, Publisher: IEEE, Pages: 1652-1657, ISSN: 0191-2216
  • Journal article
    Qin YX, Chung HSH, Lin DY, Hui SYRet al., 2008,

    Current source ballast for high power lighting emitting diodes without electrolytic capacitor

    , IECON Proceedings Industrial Electronics Conference, Pages: 1968-1973

    An LED driver requiring no electrolytic capacitor in the whole power conversion process is presented. It consists of two power conversion stages. The first stage is a buck converter operating in discontinuous capacitor voltage mode, so that the input current is continuous. It is used to deliver a regulated current for the second stage. The second stage is a current-fed inverter, in which the semiconductor switches are operated at constant switching frequency and constant duty cycle of 0.5. The power supplying to the LED string is regulated by controlling the duty cycle of the main switch in the front-stage buck converter. The two stages are interconnected by an LC filter, which is designed to attenuate harmonics at double of the line frequency. Instead of using an electrolytic capacitor for the filter, a polyester capacitor of better lifetime expectancy is used. An 18W experimental prototype has been built and tested. © 2008 IEEE.

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