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• JOURNAL ARTICLE
  , 2018,

  Estimation of Aggregate Reserve with Point-of-Load Voltage Control

  , IEEE Transactions on Smart Grid, Vol: 9, Pages: 4649-4658, ISSN: 1949-3053

  © 2010-2012 IEEE. Voltage dependent loads can collectively provide a certain amount of power reserve (by virtue of the ability to change their power consumption within the stipulated voltage tolerance) which could be exploited for grid frequency regulation through voltage control at the substation/feeder or at the point of load. The amount of such power reserve would vary with time of the day depending on the incidence of different types of voltage dependent loads and also the voltage profile across the feeders. It is important for the grid operators to know the aggregate power reserve from the voltage dependent loads during different times of the day in order to schedule other forms of reserves accordingly. This paper presents a methodology to estimate such power reserve from the measured power and voltage at the bulk supply points without knowing the actual distribution network topology and/or load profile of individual customers. The proposed method is applied to estimate the time variation of the aggregate reserve offered by the voltage dependent loads within the domestic sector in Great Britain. Studies on a standard IEEE distribution network are presented to validate the estimated reserve margins under typical voltage profiles across the distribution feeders.

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  • Citations: 1
• JOURNAL ARTICLE
  Yan S, Wang M-H, Yang T-B, Tan S-C, Chaudhuri B, Hui SYRet al., 2018,

  Achieving Multiple Functions of Three-Phase Electric Springs in Unbalanced Three-Phase Power Systems Using the Instantaneous Power Theory

  , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 33, Pages: 5784-5795, ISSN: 0885-8993
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  • Citations: 1
• CONFERENCE PAPER
  Chen B, Pin G, Ng WM, Hui SYR, Parisini Tet al., 2018,

  An Adaptive-Observer-Based Robust Estimator of Multi-sinusoidal Signals

  , American Control Conference, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 1618-1631, ISSN: 0018-9286
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  • Citations: 5
• JOURNAL ARTICLE
  Majumdar A, Pal BC, 2018,

  Bad Data Detection in the Context of Leverage Point Attacks in Modern Power Networks

  , IEEE TRANSACTIONS ON SMART GRID, Vol: 9, Pages: 2042-2054, ISSN: 1949-3053
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  • Citations: 1
• JOURNAL ARTICLE
  Liang L, Hou Y, Hill DJ, Hui SYRet al., 2018,

  Enhancing Resilience of Microgrids With Electric Springs

  , IEEE Transactions on Smart Grid, Vol: 9, Pages: 2235-2247, ISSN: 1949-3053

  © 2016 IEEE. Extreme natural events have caused severe power system blackouts in recent years. It is important for power systems to survive after such events and recover the power supply, especially for critical loads (CLs), as soon as possible. In this paper, a control strategy is proposed for electric springs (ESs) to enhance resilience of microgrids with fluctuating renewable resources. First, the feasible operating region of the ES and the power-voltage curve of the bus connected with the ES are derived analytically. Second, according to the derived feasible operating region, a novel control strategy of ES is proposed to regulate the frequency and voltage of microgrids with and without a communication system. The voltages on CLs are considered as a critical constraint for enhancing resilience during extreme natural events. Finally, the method to enhance resilience of microgrids with ES under both the frequency support mode and the voltage support mode are studied. Case studies demonstrate that ESs can enhance the resilience of microgrids with the proposed strategy with and without a communication system after extreme natural events.

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  • Citations: 1
• JOURNAL ARTICLE
  Judge PD, Chaffey G, Merlin MMC, Clemow PR, Green TCet al., 2018,

  Dimensioning and Modulation Index Selection for the Hybrid Modular Multilevel Converter

  , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 33, Pages: 3837-3851, ISSN: 0885-8993
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• JOURNAL ARTICLE
  Merlin MMC, Soto-Sanchez D, Judge PD, Chaffey G, Clemow P, Green TC, Trainer DR, Dyke KJet al., 2018,

  The Extended Overlap Alternate Arm Converter: A Voltage-Source Converter With DC Fault Ride-Through Capability and a Compact Design

  , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 33, Pages: 3898-3910, ISSN: 0885-8993
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  • Citations: 6
• JOURNAL ARTICLE
  Gu Y, Bottrell N, Green TC, 2018,

  Reduced-Order Models for Representing Converters in Power System Studies

  , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 33, Pages: 3644-3654, ISSN: 0885-8993
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  • Citations: 1
• JOURNAL ARTICLE
  De Paola A, Angeli D, Strbac G, 2018,

  Integration of Price-Responsive Appliances in the Energy Market Through Flexible Demand Saturation

  , IEEE TRANSACTIONS ON CONTROL OF NETWORK SYSTEMS, Vol: 5, Pages: 154-166, ISSN: 2325-5870
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  • Citations: 1
• JOURNAL ARTICLE
  Singh AK, Pal BC, 2018,

  Decentralized Nonlinear Control for Power Systems Using Normal Forms and Detailed Models

  , IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 33, Pages: 1160-1172, ISSN: 0885-8950
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  • Citations: 1
• JOURNAL ARTICLE
  Bettiol P, Vinter RB, 2018,

  L-infinity estimates on trajectories confined to a closed subset, for control systems with bounded time variation

  , MATHEMATICAL PROGRAMMING, Vol: 168, Pages: 201-228, ISSN: 0025-5610
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• JOURNAL ARTICLE
  Li Y, Junyent-Ferre A, Rodriguez-Bernuz J-M, 2018,

  A Three-Phase Active Rectifier Topology for Bipolar DC Distribution

  , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 33, Pages: 1063-1074, ISSN: 0885-8993
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  • Citations: 2
• JOURNAL ARTICLE
  Xiang X, Zhang X, Chaffey GP, Green TCet al., 2018,

  An Isolated Resonant Mode Modular Converter With Flexible Modulation and Variety of Configurations for MVDC Application

  , IEEE TRANSACTIONS ON POWER DELIVERY, Vol: 33, Pages: 508-519, ISSN: 0885-8977
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  • Citations: 2
• JOURNAL ARTICLE
  Judge PD, Merlin MMC, Green TC, Trainer DR, Vershinin Ket al., 2018,

  Thyristor-Bypassed Submodule Power-Groups for Achieving High-Efficiency, DC Fault Tolerant Multilevel VSCs

  , IEEE TRANSACTIONS ON POWER DELIVERY, Vol: 33, Pages: 349-359, ISSN: 0885-8977
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  • Citations: 1
• JOURNAL ARTICLE
  McKenna R, Djapic P, Weinand J, Fichtner W, Strbac Get al., 2018,

  Assessing the implications of socioeconomic diversity for low carbon technology uptake in electrical distribution networks

  , APPLIED ENERGY, Vol: 210, Pages: 856-869, ISSN: 0306-2619
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  • Citations: 2
• JOURNAL ARTICLE
  Moreira A, Strbac G, Moreno R, Street A, Konstantelos Iet al., 2018,

  A Five-Level MILP Model for Flexible Transmission Network Planning Under Uncertainty: A Min-Max Regret Approach

  , IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 33, Pages: 486-501, ISSN: 0885-8950
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  • Citations: 3
• JOURNAL ARTICLE
  Ma S, Geng H, Liu L, Yang G, Pal BCet al., 2018,

  Grid-Synchronization Stability Improvement of Large Scale Wind Farm During Severe Grid Fault

  , IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 33, Pages: 216-226, ISSN: 0885-8950
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  • Citations: 4
• JOURNAL ARTICLE
  Anagnostou G, Pal BC, 2018,

  Derivative-Free Kalman Filtering Based Approaches to Dynamic State Estimation for Power Systems With Unknown Inputs

  , IEEE TRANSACTIONS ON POWER SYSTEMS, Vol: 33, Pages: 116-130, ISSN: 0885-8950
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  • Citations: 6
• JOURNAL ARTICLE
  Majumdar A, Agalgaonkar YP, Pal BC, Gottschalg Ret al., 2018,

  Centralized Volt-Var Optimization Strategy Considering Malicious Attack on Distributed Energy Resources Control

  , IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, Vol: 9, Pages: 148-156, ISSN: 1949-3029
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• JOURNAL ARTICLE
  Thammawichai M, Kerrigan EC, 2018,

  Energy-efficient real-time scheduling for two-type heterogeneous multiprocessors

  , Real-Time Systems, Vol: 54, Pages: 132-165, ISSN: 0922-6443
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• JOURNAL ARTICLE
  Sanz IM, Judge PD, Spallarossa CE, Chaudhuri B, Green TCet al., 2017,

  Dynamic Overload Capability of VSC HVDC Interconnections for Frequency Support

  , IEEE TRANSACTIONS ON ENERGY CONVERSION, Vol: 32, Pages: 1544-1553, ISSN: 0885-8969
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  • Citations: 4
• JOURNAL ARTICLE
  De Paola A, Angeli D, Strbac G, 2017,

  Price-Based Schemes for Distributed Coordination of Flexible Demand in the Electricity Market

  , IEEE TRANSACTIONS ON SMART GRID, Vol: 8, Pages: 3104-3116, ISSN: 1949-3053
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  • Citations: 3
• JOURNAL ARTICLE
  Padoan A, Scarciotti G, Astolfi A, 2017,

  A Geometric Characterization of the Persistence of Excitation Condition for the Solutions of Autonomous Systems

  , IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 62, Pages: 5666-5677, ISSN: 0018-9286
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  • Citations: 2
• JOURNAL ARTICLE
  Kkelis G, Yates DC, Mitcheson PD, 2017,

  Class-E Half-Wave Zero dv/dt Rectifiers for Inductive Power Transfer

  , IEEE TRANSACTIONS ON POWER ELECTRONICS, Vol: 32, Pages: 8322-8337, ISSN: 0885-8993
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  • Citations: 5
• JOURNAL ARTICLE
  Tzelepis D, Rousis AO, Dysko A, Booth C, Strbac Get al., 2017,

  A new fault-ride-through strategy for MTDC networks incorporating wind farms and modular multi-level converters

  , INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, Vol: 92, Pages: 104-113, ISSN: 0142-0615
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  • Citations: 7
• JOURNAL ARTICLE
  Mohtashami S, Pudjianto D, Strbac G, 2017,

  Strategic Distribution Network Planning With Smart Grid Technologies

  , IEEE TRANSACTIONS ON SMART GRID, Vol: 8, Pages: 2656-2664, ISSN: 1949-3053
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  • Citations: 9
• JOURNAL ARTICLE
  Bachtiar V, Manzie C, Kerrigan EC, 2017,

  Nonlinear Model-Predictive Integrated Missile Control and Its Multiobjective Tuning

  , Journal of Guidance, Control, and Dynamics, Vol: 40, Pages: 2961-2970, ISSN: 0731-5090
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• CONFERENCE PAPER
  , 2017,

  Virtual power plant: Managing synergies and conflicts between transmission system operator and distribution system operator control objectives

  , Pages: 2049-2052

  © 2017 The Institution of Engineering and Technology. All rights reserved. In this study, the implementation of virtual power plant (VPP) as a means to coordinate the use of distributed resources for different control objectives by transmission system operator and distribution system operator is described. In order to illustrate the concept, a range of illustrative studies demonstrating the application of VPP concept on a real 11 kV system in Brixton will be presented, using data from the Low Carbon London project. The studies demonstrate the changes in the operating characteristics of the VPP area over a range of system operating conditions.

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• CONFERENCE PAPER
  , 2017,

  Business case in support for reactive power services from distributed energy storage

  , Pages: 1609-1613

  © 2017 The Institution of Engineering and Technology. All rights reserved. The integration of energy storage (ES) in future low-carbon networks can offer significant opportunities to distribution network operators and other players in the electricity industry. The potential of ES to support distribution network by reducing peak demand, provide security of supply and resilience, manage voltage levels and ultimately defer (and avoid) investment in network reinforcements has been widely reported in the literature. This paper, however, sets out to investigate not only the value of coordinating ES active and reactive power outputs to support network operator activities but also to other stakeholders in future low-carbon networks. The proposed model coordinates active and reactive power outputs from an ES plant at the distribution level. Fundamentally, ES plant operation is optimised to deliver maximum benefits by considering its capability to provide active and reactive power in a coordinated fashion. It is demonstrated that the proposed methodology to determine ES power outputs is fundamental to ensure effective (and robust) delivery of network services at critical ES energy levels. The results have also shown that in a multiple service business model, the coordination of active and reactive power may increase total revenue by ca. 2400 £/month, when compared to an active power only operation mode.

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• JOURNAL ARTICLE
  Scarciotti G, 2017,

  Steady-State Matching and Model Reduction for Systems of Differential-Algebraic Equations

  , IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Vol: 62, Pages: 5372-5379, ISSN: 0018-9286
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