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  • Journal article
    Allwright JC, Astolfi A, Wong HP, 2005,

    A note on asymptotic stabilization of linear systems by periodic,piecewise constant, output feedback

    , AUTOMATICA, Vol: 41, Pages: 339-344, ISSN: 0005-1098
  • Journal article
    Angeli D, Liberzon D, Hespanha J, Sontag EDet al., 2005,

    Nonlinear norm-observability notions and stability of switched systems

    , IEEE Transactions on Automatic Control, Vol: 50, Pages: 154-168, ISSN: 0018-9286
  • Journal article
    Patan K, Parisini T, 2005,

    Identification of neural dynamic models for fault detection and isolation: the case of a real sugar evaporation process

    , JOURNAL OF PROCESS CONTROL, Vol: 15, Pages: 67-79, ISSN: 0959-1524
    • Cite
    • Citations: 55
  • Conference paper
    Yao J, Green TC, 2005,

    Three-dimensional space vector modulation for a four-leg three-level inverter

    The trend toward deploying inverters in interfacing distributed generation (DG) systems to the grid has raised the importance of control and power quality aspects of inverters. Using multilevel inverters in DG systems, one can achieve high power quality outputs with realistic switching frequency. The four-leg three-level inverter topology is proposed for DG applications in three-phase four-wire systems, for its full dc-link utilization and low voltage ripple on the dc-link capacitors. A novel algorithm for three-dimensional space vector modulation (3D-SVM) is proposed for controlling a four-leg three-level inverter. The issues of vector selection and switching sequence determination are described. Simulation results are compared with those of a three-leg three-level inverter to assess the effectiveness of the proposed 3D-SVM and to establish the advantages of the four-leg three-level topology over conventional three-leg three-level one.
  • Journal article
    Lovera M, Astolfi A, 2005,

    Global magnetic attitude control of inertially pointing spacecraft

    , JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, Vol: 28, Pages: 1065-1067, ISSN: 0731-5090
    • Cite
    • Citations: 55
  • Conference paper
    Chisci L, Falugi P, 2005,

    Tracking control for constrained monotone systems

    , Pages: 61-66, ISSN: 1474-6670

    Tracking control of nonlinear systems subject to constraints on the input is a challenging issue in control design. Forcing saturation on a previously designed controller may in general lead to destabilization or at least result in performance losses. Hereby it is shown that for a certain class of nonlinear monotone systems it is possible to design a suitable static nonlinear output feedback which stabilizes the system and preserves stability under control saturation. Copyright © 2005 IFAC.
  • Journal article
    Chung HSH, Ho NM, Hui SYR, Mai WZet al., 2005,

    Case study of a highly-reliable dimmable road lighting system with intelligent remote control

    , 2005 European Conference on Power Electronics and Applications, Vol: 2005

    This paper presents the phase-one results of a case study of a dimmable road lighting system with intelligent remote control. This is the first large-scale installation of such system for about 8000 street lamps in China and the phase-one of the project involves 1350 lamps. Patent-pending central control dimming systems, that can turn existing "non-dimmable" electromagnetic lighting systems into dimmable ones without major rewiring or replacement of equipment, have been installed in Heshan City, China since September 2004. This central dimming system provides a self-recovery feature and ensures high lighting system availability, as it will automatically withdraw itself from the lighting network if it cannot work normally. By retaining existing electromagnetic ballasts in all lamp posts, the use of this central dimming system does not require any expensive electronic ballasts. More importantly, electronic ballasts may help save some energy for a few years of their short lifetime but will become electronic waste and pollutants for many hundreds of years. The proposed system in this paper provides an environmentally-friendly and energy-saving solution for dimmable road lighting systems. Most of the advantages of electromagnetic ballasts such as long lifetime, recyclability of iron chokes, high reliability and immunity against extreme weather conditions and lightning are kept. During the 9-month operation, none of the streets with such dimming system installed suffers light blackout. It has also been independently confirmed that there was no increase in crime and traffic accident rates. No compliant has been received from residents by the road lighting management company. In phase-one of this project, an overall energy saving of 27% has been recorded without adversely affecting quality of life.
  • Journal article
    Chisci L, Falugi P, 2005,

    Discussion on: “Improved MPC Design based on Saturating Control Laws”

    , European Journal of Control, Vol: 11, Pages: 123-124, ISSN: 0947-3580
  • Journal article
    Angeli D, De Leenheer P, Sontag ED, 2005,

    On predator-prey systems and small-gain theorems

    , MATHEMATICAL BIOSCIENCES AND ENGINEERING, Vol: 2, Pages: 25-42, ISSN: 1547-1063
  • Book chapter
    Strbac G, Djapic P, Bopp T, Jenkins Net al., 2005,

    Benefits of Active Mangement of Distribution Systems

    , Wind Power in Power Systems, Editors: Ackermann, Publisher: John Wiley & Sons, Ltd, Pages: 461-477, ISBN: 9780470855089
  • Journal article
    Ortega R, Galaz M, Astolfi A, Sun YZ, Shen TLet al., 2005,

    Transient stabilization of multimachine power systems with nontrivial transfer conductances

    , IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 50, Pages: 60-75, ISSN: 0018-9286
  • Journal article
    Majumber R, Chaudhuri B, Pal BC, Zhong QCet al., 2005,

    A unified smith predictor approach for power system damping control design using remote signals

    , IEEE Transactions on Control System Technology, Vol: 13, Pages: 1063-1068, ISSN: 1063-6536
  • Conference paper
    Yeatman EM, Miao P, Mitcheson PD, Holmes AS, Green TC, Mitcheson PD, Stark BHet al., 2005,

    MEMS inertial power generators for biomedical applications

    , Proceedings symposium on design, test, integration and packaging of MEMS/MOEMS, Montreux, Switzerland, 1 -3 June 2005, Pages: 295-298
  • Conference paper
    Soto D, Green TC, 2005,

    A DC link capacitor voltages control strategy for a PWM cascade STATCOM

    , 36th Annual IEEE Power Electronic Specialists Conference (PESC 05), Publisher: IEEE, Pages: 2251-2256, ISSN: 0275-9306
    • Cite
    • Citations: 12
  • Journal article
    Levi V, Strbac G, Allan R, 2005,

    Assessment of performance-driven investment strategies of distribution systems using reference networks

    , Generation, Transmission and Distribution, IEE Proceedings, Vol: 152, Pages: 1-10, ISSN: 1350-2360
  • Conference paper
    Yates DC, Holmes AS, 2005,

    Loop antenna design for ultra low power transmitters

    , IWAT 2005: IEEE international workshop on antenna technology: small antennas and novel metamaterials, Singapore, 7 - 9 March 2005, Publisher: IEEE, Pages: 287-290
  • Journal article
    Hughes FM, Anaya-Lara O, Jenkins N, Strbac Get al., 2005,

    Control of DFIG-based wind generation for power network support

    , IEEE Transactions on Power Systems, Vol: 20, Pages: 1958-1966, ISSN: 0885-8950
  • Conference paper
    Mei F, Pal BC, 2005,

    Modelling and small-signal analysis of a grid connected doubly-fed induction generator

    , IEEE-Power-Engineering-Society General Meeting, Publisher: IEEE USA, Pages: 2101-2108

    This paper describes the modeling and small signal analysis of a grid connected doubly-fed induction generator(DFIG). Different models are formulated and compared witheach other for different assumptions (two or one-mass drive train,with or without stator transients). The models are developedfrom the basic flux linkage, voltage and torque equations.Eigenvalues and participation factor analysis of the linearizedmodels are carried out to relate the DFIG electromechanical modes to its relevant state variables.
  • Conference paper
    Karagiannis D, Ortega R, Astolfi A, 2005,

    Nonlinear adaptive stabilization via system immersion: control design and applications

    , Berlin, Advanced topics in control systems theory, Publisher: Springer-Verlag Berlin, Pages: 1-21, ISSN: 1053-587X
  • Journal article
    Anaparthi KK, Chaudhuri B, Thornhill NF, Pal BCet al., 2005,

    Coherency identification in power systems through principal component analysis

    , IEEE Transactions on Power Systems, Vol: 20, Pages: 1658-1660, ISSN: 0885-8950
  • Journal article
    Karagiannis D, Astolfi A, Ortega R, 2005,

    Nonlinear stabilization via system immersion and manifold invariance: Survey and new results

    , MULTISCALE MODELING & SIMULATION, Vol: 3, Pages: 801-817, ISSN: 1540-3459
  • Conference paper
    de Rinaldis A, Astolfi A, Ortega R, Spong MWet al., 2005,

    A switched-resistors implementation of compensators for wave reflections in transmission lines

    , 44th IEEE Conference on decision and control, 2005 and 2005 European Control Conference (CDC-ECC '05), 12-15 December 2005, Seville, Spain, Pages: 4342-4347
  • Conference paper
    Kouramas K, Rakovic SV, Kerrigan EC, Allwright J, Mayne DQet al., 2005,

    On the minimal robust positively invariant set for linear difference inclusions

    , 44th IEEE conference on decision and control & 44th European control conference, Seville, Spain, Publisher: New York; IEEE Control Systems Society; 2005, Pages: 2296-2301
  • Conference paper
    Tan CW, Green TC, Hernandez-Aramburo CA, 2005,

    An improved maximum power point tracking algorithm with current-mode control for photovoltaic applications

    , Power Electronics and Drives Systems, 2005. PEDS 2005. International Conference on, Publisher: IEEE, Pages: 489-494
  • Conference paper
    Astolfi A, Colaneri P, 2005,

    A globally convergent algorithm for minimization of quadratic functions on compact and convex sets

    , SIAM Conference on Optimization
  • Conference paper
    Goulart PJ, Kerrigan EC, Maciejowski JM, 2005,

    State feedback policies for robust receding horizon control: uniqueness, continuity, and stability

    , 44th IEEE conference on decision and control & 44th European control conference, Seville, Spain, Publisher: New York; IEEE Control Systems Society; 2005, Pages: 3753-3758
  • Conference paper
    Mitcheson PD, Yates DC, Yeatman EM, Green TC, Holmes ASet al., 2005,

    Modelling for optimisation of self-powered wireless sensor nodes

    , 2nd international workshop on wearable and implantable body sensor networks, London, 12 - 13 April 2005, Publisher: IEEE, Pages: 53-57
  • Conference paper
    Green TC, Pogaku N, Hernandez-Aramburo C, Prodanovic Met al., 2005,

    Stability analysis of parallel connected inverters in stand-alone systems considering inverter internal controls

    , UPEC 05, Cork, Ireland, 2005
  • Conference paper
    Escobar G, Ortega R, Astolfi A, Martinez MF, Leyva-Ramos Jet al., 2005,

    A repetitive based controller for a shunt active filter to compensate for reactive power and harmonic distortion

    , 44th IEEE Conference on decision and control, 2005 and 2005 European Control Conference (CDC-ECC '05), 12-15 December 2005, Seville, Spain, Pages: 6480-6485
  • Conference paper
    Karagiannis D, Astolfi A, 2005,

    Rotor resistance estimation for current-fed induction motors

    , IFAC World Congress

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