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  • Journal article
    Kuenzel S, Kunjumuhhamed LP, Pal BC, Erlich Iet al., 2014,

    Impact of Wakes on Wind Farm Inertial Response

    , IEEE Transactions on Sustainable Energy, Vol: 5, Pages: 237-245, ISSN: 1949-3029
  • Journal article
    Jabr RA, Dzafic I, Pal BC, 2014,

    Robust Optimization of Storage Investment on Transmission Networks

    , IEEE Transactions on Power Systems, Vol: 30, Pages: 531-539, ISSN: 0885-8950

    This paper discusses the need for the integration of storage systems on transmission networks having renewable sources, and presents a tool for energy storage planning. The tool employs robust optimization to minimize the investment in storage units that guarantee a feasible system operation, without load or renewable power curtailment, for all scenarios in the convex hull of a discrete uncertainty set; it is termed ROSION—Robust Optimization of Storage Investment On Networks. The computational engine in ROSION is a specific tailored implementation of a column-and-constraint generation algorithm for two-stage robust optimization problems, where a lower and an upper bound on the optimal objective function value are successively calculated until convergence. The lower bound is computed using mixed-integer linear programming and the upper bound via linear programming applied to a sequence of similar problems. ROSION is demonstrated for storage planning on the IEEE 14-bus and 118-bus networks, and the robustness of the designs is validated via Monte Carlo simulation.
  • Journal article
    Yin J, Lin D, Lee CK, Hui SYRet al., 2014,

    Monitoring of multiple loads in wireless power transfer systems without direct output feedback

    , Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, Pages: 1165-1170

    In this paper, a computational method that uses only the input voltage and current to identify the impedances of multiple loads in wireless power transfer systems without any direct load measurements is proposed. The method has been practically realized in a wireless power domino-resonator system comprising 8 resonators. A good degree of accuracy has been achieved in the practical verification. Although the method is demonstrated in a relatively complex system, the principle applies to any wireless power transfer system with 3 or more coil-resonators. Without the requirements for direct load measurements, control circuitry of a wireless power transfer system with multiple loads can avoid the needs for using wireless communication system for feedback purposes. © 2014 IEEE.
  • Journal article
    Kiziroglou ME, Wright SW, Toh TT, Mitcheson PD, Becker T, Yeatman EMet al., 2014,

    Design and Fabrication of Heat Storage Thermoelectric Harvesting Devices

    , Industrial Electronics, IEEE Transactions on, Vol: 61, Pages: 302-309, ISSN: 0278-0046
  • Journal article
    Plet CA, Green TC, 2014,

    Fault response of inverter interfaced distributed generators in grid-connected applications

    , ELECTRIC POWER SYSTEMS RESEARCH, Vol: 106, Pages: 21-28, ISSN: 0378-7796
  • Journal article
    Longo S, Kerrigan EC, Constantinides GA, 2014,

    Constrained LQR for low-precision data representation

    , Automatica, Vol: 50, Pages: 162-168, ISSN: 1873-2836

    Performing computations with a low-bit number representation results in a faster implementation that uses less silicon, and hence allows an algorithm to be implemented in smaller and cheaper processors without loss of performance. We propose a novel formulation to efficiently exploit the low (or non-standard) precision number representation of some computer architectures when computing the solution to constrained LQR problems, such as those that arise in predictive control. The main idea is to include suitably-defined decision variables in the quadratic program, in addition to the states and the inputs, to allow for smaller roundoff errors in the solver. This enables one to trade off the number of bits used for data representation against speed and/or hardware resources, so that smaller numerical errors can be achieved for the same number of bits (same silicon area). Because of data dependencies, the algorithm complexity, in terms of computation time and hardware resources, does not necessarily increase despite the larger number of decision variables. Examples show that a 10-fold reduction in hardware resources is possible compared to using double precision floating point, without loss of closed-loop performance.
  • Conference paper
    Nunna K, Sassano M, Astolfi A, 2014,

    Dynamic Interconnection and Damping Assignment

    , 53rd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 1563-1568, ISSN: 0743-1546
  • Conference paper
    Yan S, Tan S-C, Lee C-K, Hui SYRet al., 2014,

    Reducing Three-Phase Power Imbalance with Electric Springs

    , IEEE 5th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Publisher: IEEE, ISSN: 2329-5759
  • Conference paper
    Pin G, Karimi-Ghartemani M, Chen B, Parisini Tet al., 2014,

    Sinusoidal Signal Estimation from a Noisy-Biased Measurement by an Enhanced PLL with Generalized Error Filtering

    , 53rd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 4071-4076, ISSN: 0743-1546
  • Conference paper
    Chen B, Pin G, Parisini T, 2014,

    Robust Parametric Estimation of Biased Sinusoidal Signals: a Parallel Pre-filtering Approach

    , 53rd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 1804-1809, ISSN: 0743-1546
  • Conference paper
    Keliris C, Polycarpou MM, Parisini T, 2014,

    A Distributed Fault Diagnosis Approach Utilizing Adaptive Approximation for a Class of Interconnected Continuous-Time Nonlinear Systems

    , 53rd IEEE Annual Conference on Decision and Control (CDC), Publisher: IEEE, Pages: 6536-6541, ISSN: 0743-1546
  • Conference paper
    Astolfi A, Boncagni L, Carnevale D, Galeani S, Ganci M, Mazzitelli G, Sassano Met al., 2014,

    Adaptive Hybrid Observer of the Plasma Horizontal Position at FTU

    , 22nd Mediterranean Conference on Control and Automation (MED), Publisher: IEEE, Pages: 1088-1093, ISSN: 2325-369X
  • Conference paper
    Moreno FJ, Merlin MMC, Trainer DR, Dyke KJ, Green TCet al., 2014,

    Control of an alternate arm converter connected to a star transformer

    , Pages: 1-10
  • Conference paper
    Clemow P, Judge P, Chaffey G, Merlin M, Luth T, Green TCet al., 2014,

    Lab-scale experimental multilevel modular HVDC converter with temperature controlled cells

    , Pages: 1-10
  • Conference paper
    Luth T, Merlin MMC, Green TC, 2014,

    Modular multilevel DC/DC converter architectures for HVDC taps

    , Pages: 1-10
  • Conference paper
    Junyent-Ferre A, Clemow P, Merlin M, Green TCet al., 2014,

    Operation of HVDC Modular Multilevel Converters under DC pole imbalances

    , Pages: 1-10
  • Conference paper
    Merlin MMC, Green TC, Mitcheson PD, Moreno FJ, Dyke KJ, Trainer DRet al., 2014,

    Cell capacitor sizing in modular multilevel converters and hybrid topologies

    , Pages: 1-10
  • Conference paper
    Jiang H, Kiziroglou ME, Yates DC, Yeatman EMet al., 2014,

    A Piezoelectric Pulse Generator and FM Transmission Circuit for Self-Powered BSN Nodes

    , Wearable and Implantable Body Sensor Networks (BSN), 2014 11th International Conference on, Publisher: IEEE, Pages: 1-5
  • Conference paper
    Spallarossa CE, Green TC, Lin C, Wu Xet al., 2014,

    A DC Voltage Control Strategy for MMC MTDC Grids incorporating Multiple Master Stations

    , IEEE PES T and D Conference and Exposition, Publisher: IEEE
  • Conference paper
    Kwan CH, Lawson J, Yates DC, Mitcheson PDet al., 2014,

    Position-insensitive long range inductive power transfer

    , 14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
  • Conference paper
    Elliott ADT, Mitcheson PD, 2014,

    Piezoelectric energy harvester interface with real-time MPPT

    , 14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
  • Conference paper
    Mylvaganam T, Sassano M, Astolfi A, 2014,

    A Constructive Differential Game Approach to Collision Avoidance in Multi-Agent Systems

    , American Control Conference, Publisher: IEEE, Pages: 311-316, ISSN: 0743-1619
  • Conference paper
    Toh TT, Wright SW, Mitcheson PD, 2014,

    Resonant frequency tuning of an industrial vibration energy harvester

    , 14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
  • Conference paper
    Toh TT, Wright SW, Kiziroglou ME, Mitcheson PD, Yeatman EMet al., 2014,

    Inductive Energy Harvesting for Rotating Sensor Platforms

    , ISSN: 1742-6596
  • Conference paper
    Toh TT, Wright SW, Kiziroglou ME, Mueller J, Sessinghaus M, Yeatman EM, Mitcheson PDet al., 2014,

    Inductive energy harvesting from variable frequency and amplitude aircraft power lines

    , ISSN: 1742-6596
  • Conference paper
    Mylvaganam T, Astolfi A, 2014,

    Approximate Optimal Monitoring

    , 13th European Control Conference (ECC), Publisher: IEEE, Pages: 1199-1204
  • Conference paper
    Bauso D, Mylvaganam T, Astolfi A, 2014,

    Approximate solutions for crowd-averse robust mean-field games

    , 13th European Control Conference (ECC), Publisher: IEEE, Pages: 1217-1222
  • Conference paper
    Chang H, Moog CH, Astolfi A, 2014,

    Analysis of the HIV Eradication Phenomenon at the Early Stage of Infection with an Extracellular Deterministic Model

    , 36th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society (EMBC), Publisher: IEEE, Pages: 330-333, ISSN: 1557-170X
  • Conference paper
    Nanchian S, Majumdar A, Pal BC, Mobsby D, FMacLeman Det al., 2014,

    Transformer Tap Estimation Using Hybrid Particle Swarm Optimization

    , IEEE PES General Meeting, Publisher: IEEE, ISSN: 1944-9925
  • Conference paper
    Sanz IM, Chaudhuri B, Strbac G, 2014,

    Frequency Changes in AC Systems Connected to DC Grids: Impact of AC vs. DC Side Events

    , IEEE PES General Meeting, Publisher: IEEE, ISSN: 1944-9925

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