Search Results - "Ratnam, Elizabeth L."

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  1. 1

    A Survey of Algorithms for Distributed Charging Control of Electric Vehicles in Smart Grid by Nimalsiri, Nanduni I., Mediwaththe, Chathurika P., Ratnam, Elizabeth L., Shaw, Marnie, Smith, David B., Halgamuge, Saman K.

    “…Electric vehicles (EVs) are an eco-friendly alternative to vehicles with internal combustion engines. Despite their environmental benefits, the massive…”
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    Journal Article
  2. 2

    Residential load and rooftop PV generation: an Australian distribution network dataset by Ratnam, Elizabeth L., Weller, Steven R., Kellett, Christopher M., Murray, Alan T.

    “…Despite the rapid uptake of small-scale solar photovoltaic (PV) systems in recent years, public availability of generation and load data at the household level…”
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    Journal Article
  3. 3

    Phasor-Based Control for Scalable Integration of Variable Energy Resources by von Meier, Alexandra, Ratnam, Elizabeth L., Brady, Kyle, Moffat, Keith, Swartz, Jaimie

    Published in Energies (Basel) (01-01-2020)
    “…We propose an innovative framework termed phasor-based control (PBC) to facilitate the integration of heterogeneous and intermittent distributed energy…”
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    Journal Article
  4. 4

    Distributed energy storage system scheduling considering tariff structure, energy arbitrage and solar PV penetration by Babacan, Oytun, Ratnam, Elizabeth L., Disfani, Vahid R., Kleissl, Jan

    Published in Applied energy (01-11-2017)
    “…•A new convex optimization based energy storage charge scheduling algorithm is developed.•A novel supply charge tariff is proposed to incentivize solar PV…”
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    Journal Article
  5. 5

    An optimization-based approach to scheduling residential battery storage with solar PV: Assessing customer benefit by Ratnam, Elizabeth L., Weller, Steven R., Kellett, Christopher M.

    Published in Renewable energy (01-03-2015)
    “…Several studies have suggested that battery storage co-located with solar photovoltaics (PV) benefits electricity distributors in maintaining system voltages…”
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    Journal Article
  6. 6

    Competitive Equilibrium for Dynamic Multiagent Systems: Social Shaping and Price Trajectories by Salehi, Zeinab, Chen, Yijun, Ratnam, Elizabeth L., Petersen, Ian R., Shi, Guodong

    Published in IEEE transactions on automatic control (01-08-2024)
    “…In this article, we consider dynamic multiagent systems (MAS) for decentralized resource allocation. The MAS operate at a competitive equilibrium to ensure a…”
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    Journal Article
  7. 7

    Scheduling residential battery storage with solar PV: Assessing the benefits of net metering by Ratnam, Elizabeth L., Weller, Steven R., Kellett, Christopher M.

    Published in Applied energy (01-10-2015)
    “…•Linear- and quadratic-program based scheduling of residential battery storage.•Increase daily operational savings in the context of net metering.•Consider…”
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    Journal Article
  8. 8

    Coordinated Charge and Discharge Scheduling of Electric Vehicles for Load Curve Shaping by Nimalsiri, Nanduni I., Ratnam, Elizabeth L., Smith, David B., Mediwaththe, Chathurika P., Halgamuge, Saman K.

    “…In this paper, we propose two decentralized Electric Vehicle (EV) charge scheduling schemes for shaping the load curve of residential communities connected to…”
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    Journal Article
  9. 9

    Optimization-Based Operation of Distribution Grids With Residential Battery Storage: Assessing Utility and Customer Benefits by de Carvalho, Wilhiam C., Ratnam, Elizabeth L., Blackhall, Lachlan, Meier, Alexandra von

    Published in IEEE transactions on power systems (01-01-2023)
    “…Increasing levels of distributed solar photovoltaic (PV) generation has created significant technical challenges in distribution networks, particularly…”
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    Journal Article
  10. 10

    Receding horizon optimization-based approaches to managing supply voltages and power flows in a distribution grid with battery storage co-located with solar PV by Ratnam, Elizabeth L., Weller, Steven R.

    Published in Applied energy (15-01-2018)
    “…•Two receding horizon optimization-based algorithms proposed for coordinating residential battery storage.•Addresses the problem of managing bi-directional…”
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    Journal Article
  11. 11

    Exploring the Intersection of Artificial Intelligence and Microgrids in Developing Economies: A Review of Practical Applications by Bodewes, William, de Hoog, Julian, Ratnam, Elizabeth L., Halgamuge, Saman

    “…Purpose of Review This paper reviews practical challenges for microgrid electrification projects in low- and middle-income economies, proposing a…”
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    Journal Article
  12. 12

    Central versus localized optimization-based approaches to power management in distribution networks with residential battery storage by Ratnam, Elizabeth L., Weller, Steven R., Kellett, Christopher M.

    “…•Central and local quadratic program-based scheduling of residential battery storage.•Increase daily operational savings in the context of net…”
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    Journal Article
  13. 13

    Social Shaping of Dynamic Multi-Agent Systems over a Finite Horizon by Salehi, Zeinab, Chen, Yijun, Petersen, Ian R., Ratnam, Elizabeth L., Shi, Guodong

    “…This paper studies self-sustained dynamic multi-agent systems (MAS) for decentralized resource allocation operating at a competitive equilibrium over a finite…”
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    Conference Proceeding
  14. 14

    Coordinated charging and discharging control of electric vehicles to manage supply voltages in distribution networks: Assessing the customer benefit by Nimalsiri, Nanduni I., Ratnam, Elizabeth L., Mediwaththe, Chathurika P., Smith, David B., Halgamuge, Saman K.

    Published in Applied energy (01-06-2021)
    “…Increased worldwide uptake of Electric Vehicles (EVs) accentuates the need for developing coordinated EV charging and discharging methods that mitigate…”
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    Journal Article
  15. 15

    Robustness Evaluation of a WAMPAC Scheme Considering Problems with Communication Links by Modolo, Marcela A., Bento, Murilo E. C., Moraco, Anna G. M., Ratnam, Elizabeth L., Ramos, Rodrigo A.

    “…The use of synchronized data provided by Phasor Measurement Units (PMUs) installed on system buses in a Wide Area Monitoring, Protection and Control Systems…”
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    Conference Proceeding
  16. 16

    Competitive equilibriums and social shaping for multi-agent systems by Chen, Yijun, Islam, Razibul, Ratnam, Elizabeth L., Petersen, Ian R., Shi, Guodong

    Published in Automatica (Oxford) (01-12-2022)
    “…In this paper, we study multi-agent systems with decentralized resource allocations. Agents have local demand and resource supply, and are interconnected…”
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    Journal Article
  17. 17
  18. 18

    Electricity system resilience in a world of increased climate change and cybersecurity risk by Ratnam, Elizabeth L., Baldwin, Kenneth G.H., Mancarella, Pierluigi, Howden, Mark, Seebeck, Lesley

    Published in The Electricity journal (01-11-2020)
    “…The shift to widely distributed forms of energy generation and storage, requiring increased interconnectivity to geographically balance supply with distributed…”
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    Journal Article
  19. 19

    Electric Grid Topology and Admittance Estimation: Quantifying Phasor-based Measurement Requirements by Rin, Norak, Shames, Iman, Petersen, Ian R, Ratnam, Elizabeth L

    Published 23-10-2024
    “…In this paper, we quantify voltage and current phasor-based measurement requirements for the unique identification of the electric grid topology and admittance…”
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    Journal Article
  20. 20

    Design and Stability of Angle Based Feedback Control in Power Systems: A Negative-Imaginary Approach by Chen, Yijun, Petersen, Ian R., Ratnam, Elizabeth L.

    Published in 2024 American Control Conference (ACC) (10-07-2024)
    “…This paper considers a power transmission network. At the steady state, frequencies across different buses synchronize to a common nominal value and power…”
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    Conference Proceeding