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  • Journal article
    Angeli D, Nesic D, 2002,

    Inegral versions of ISS for sampled-data nonlinear systems via their approximate discrete time models

    , IEEE Transactions on Automatic Control, Vol: 47, Pages: 2033-2037
  • Journal article
    Astolfi A, Colaneri P, 2002,

    , IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 47, Pages: 2038-2041, ISSN: 0018-9286
    • Cite
    • Citations: 12
  • Journal article
    Angeli D, Nesic D, 2002,

    A trajectory-based approach for the stability robustness of nonlinear systems with inputs

    , Mathematics of Control Signals and Systems, Vol: 15, Pages: 336-355
  • Journal article
    Pal BC, 2002,

    , IEE P-GENER TRANSM D, Vol: 149, Pages: 739-745, ISSN: 1350-2360

    The merits of a robust low-order pole-placement method of damping-control design over a conventional root-locus method are discussed: both being aimed at providing adequate damping against interarea oscillations. The design is based on a weighted and normalised eigenvalue-distance-minimisation method (WNEDM) to obtain damping controllers employing Superconducting magnetic-energy-storage (SMES) devices in a study system. The WNEDM-based control guarantees adequate damping in the prefault and postfault cases. The damping performance of the controllers is compared with that obtained by the root-locus technique. The results show that the WNEDM-based control is preferred over root-locus-based control when the control efforts in each the same.
  • Journal article
    Pal BC, 2002,

    , IEE P-GENER TRANSM D, Vol: 149, Pages: 733-738, ISSN: 1350-2360

    An H-infinity-mixed-sensitivity design of a damping device employing a unified-power-flow controller (UPFC) is presented. The problem is posed in the linear-matrix-inequality (LMI) framework. The controller design is aimed at providing adequate damping to interarea oscillations over a range of operating conditions. The results obtained in a two-area four-machine test system are seen to be very satisfactory both in the frequency domain and through nonlinear simulations.
  • Journal article
    Limebeer DJN, Sharp RS, Evangelou S, 2002,

    , JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, Vol: 69, Pages: 724-739, ISSN: 0021-8936
    • Cite
    • Citations: 34
  • Journal article
    Tse KK, Ho MT, Chung HSH, Hui SYet al., 2002,

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 17, Pages: 980-989, ISSN: 0885-8993
    • Cite
    • Citations: 110
  • Journal article
    Tang SC, Hu SY, Chung HSH, 2002,

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 17, Pages: 1080-1088, ISSN: 0885-8993
    • Cite
    • Citations: 69
  • Journal article
    Ortega R, Astolfi A, Barabanov NE, 2002,

    , SYSTEMS & CONTROL LETTERS, Vol: 47, Pages: 259-278, ISSN: 0167-6911
    • Cite
    • Citations: 44
  • Journal article
    Soto D, Green TC, 2002,

    , IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 49, Pages: 1072-1080, ISSN: 0278-0046
    • Cite
    • Citations: 187
  • Journal article
    Qiu DY, Yip SC, Chung HSH, Hui SYRet al., 2002,

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 17, Pages: 623-632, ISSN: 0885-8993
    • Cite
    • Citations: 12
  • Journal article
    Pudjianto D, Ahmed S, Strbac G, 2002,

    , IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, Vol: 149, Pages: 377-383, ISSN: 1350-2360
    • Cite
    • Citations: 42
  • Journal article
    Marks JH, Green TC, 2002,

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 17, Pages: 574-584, ISSN: 0885-8993
    • Cite
    • Citations: 59
  • Journal article
    Lee CK, Hui SYR, Chung HSH, 2002,

    , IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 49, Pages: 613-617, ISSN: 0278-0046
    • Cite
    • Citations: 48
  • Journal article
    Tse KK, Chung HSH, Hui SYR, So HCet al., 2002,

    , IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 49, Pages: 618-627, ISSN: 0278-0046
    • Cite
    • Citations: 115
  • Journal article
    Astolfi A, Hsu L, Netto MS, Ortega Ret al., 2002,

    , IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION, Vol: 18, Pages: 387-392, ISSN: 1042-296X
    • Cite
    • Citations: 111
  • Journal article
    Liew S, Strbac G, 2002,

    Maximising the Penetration of Wind Generation in Existing Distribution Systems

    , IEE Proceedings on Generation, Transmission and Distribution, Vol: 149, Pages: 256-262
  • Journal article
    Zhang XD, Polycarpou MA, Parisini T, 2002,

    , IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 47, Pages: 576-593, ISSN: 0018-9286
    • Cite
    • Citations: 441
  • Journal article
    Astolfi A, Chhabra D, Ortega R, 2002,

    , SYSTEMS & CONTROL LETTERS, Vol: 45, Pages: 193-206, ISSN: 0167-6911
    • Cite
    • Citations: 41
  • Journal article
    Angeli D, Mosca E, 2002,

    , IEEE Transactions on Automatic Control, Vol: 47, Pages: 500-505, ISSN: 0018-9286

    Switching supervisory control (SSC) algorithms was developed for nonlinear plants with uncertain parameters and subjected to unaccessible persistent disturbances of known maximum size. The algorithm provided that full state feedback was available and can be tailored for linear plant dynamics. A simulative example was presented which showed that the algorithm was capable to cope with slowly time-varying and piecewise constant parameters.
  • Journal article
    Angeli D, 2002,

    , IEEE Transactions on Automatic Control, Vol: 47, Pages: 410-421, ISSN: 0018-9286

    This paper deals with several notions of incremental stability. In other words, the focus is on stability of trajectories with respect to one another, rather than with respect to some attractor. The aim is to present a framework for understanding such questions fully compatible with the well-known input-to-state stability (ISS) approach. Applications of the newly introduced stability notions are also discussed.
  • Journal article
    Zoppoli R, Sanguineti M, Parisini T, 2002,

    , JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, Vol: 112, Pages: 403-440, ISSN: 0022-3239
    • Cite
    • Citations: 106
  • Journal article
    Yan W, Hui SYR, Chung H, Cao XHet al., 2002,

    , ELECTRONICS LETTERS, Vol: 38, Pages: 110-112, ISSN: 0013-5194
    • Cite
    • Citations: 15
  • Journal article
    Astolfi A, Ortega R, 2002,

    , JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, Vol: 25, Pages: 184-187, ISSN: 0731-5090
    • Cite
    • Citations: 10
  • Conference paper
    Rodrigues AO, Malta LRP, Borsali R, Takai RB, Conhalato R, Rodrigues LOC, Freeman EM, Green T, Vasconcelos JA, Ramirez JAet al., 2002,

    This paper presents a thorough investigation of 3D calculation of the specific absorption rate (SAR) distribution in a realistic model of the human head exposed to electromagnetic fields generated by mobile phones. The calculation was made using the FDTD. The source was modeled with a power of 600 mW, as a monopole fed with a current of 300 mA, and variable frequency in the range of 800 MHz to 1.8 GHz. The human head model has a precision of 1.11 mm x 1.86 mm x 1.11 mm in the x, y and z directions, respectively; and is composed of 12 different tissues: air, bone, ERL, brain, skin, muscle, fat and eye (composed of cornea, anterior chamber, lens, vitreous body and sclera). This very fine model allows accurate SAR calculation in different tissues which may have been overlooked in other models.
  • Conference paper
    Ling KV, Falugi P, Maciejowski JM, Chisci Let al., 2002,

    , Pages: 37-42, ISSN: 1474-6670

    In this paper, a Linear Parameter Varying (LPV) model of the Furuta pendulum is derived. Based on this model, a balancing controller is designed using robust predictive control techniques. Invariant set theory is used to accurately characterise the region of the state space in which the balancing controller is effective. An energy-based control law is used to swing up the pendulum. Invariant sets calculated for the balancing controller can be exploited to systematically determine the switching condition between swing up and balancing controllers. In practice, the pendulum may be swung towards the upright position with varying speed and the speed of the rotating arm may also vary. Based on this physical insight, the speed of the rotating arm is chosen as gain scheduling variable. It is shown that this strategy is effective in achieving a more consistent swing up and balancing behaviour which is not sensitive to the performance of the swing up controller.
  • Journal article
    Cao X, Yan W, Hui SYR, Chung Het al., 2002,

    , IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, Vol: 149, Pages: 45-48, ISSN: 1350-2344
  • Journal article
    Lee CK, Hui SYR, Chung HSH, Shrivastava Yet al., 2002,

    , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 17, Pages: 94-100, ISSN: 0885-8993
    • Cite
    • Citations: 22
  • Conference paper
    Antonelli R, Harmand J, Steyer JP, Astolfi Aet al., 2002,

    Output feedback regulation of an anaerobic digestion process

    , New York, 20th annual american control conference (ACC), Anchorage, Alaska, 8 - 10 May 2002, Publisher: IEEE, Pages: 4062-4067
  • Conference paper
    Kaliora G, Astolfi A, 2002,

    Stabilization with positive and quantized control

    , New York, 41st IEEE conference on decision and control, Las Vegas, Nevada, 10 - 13 December 2002, Publisher: IEEE, Pages: 1892-1897

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