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Mr. Sam Harrison
University of Strathclyde

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Research Keywords & Expertise

0 Wind Turbine Control System
0 Virtual Inertia
0 Energy Storage Systems
0 power system dynamics
0 Grid Forming Control

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Journal article
Published: 12 November 2020 in Energies
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It is imperative to increase the connectable capacity (i.e., hosting capacity) of distributed generation in order to decarbonise electricity distribution networks. Hybrid generation that exploits complementarity in resource characteristics among different renewable types potentially provides value for minimising technical constraints and increasing the effective use of the network. Tidal, wave and wind energy are prominent offshore renewable energy sources. It is of importance to explore their potential complementarity for increasing network integration. In this work, the novel introduction of these distinct offshore renewable resources into hosting capacity evaluation enables the quantification of the benefits of various resource combinations. A scenario reduction technique is adapted to effectively consider variation of these renewables in an AC optimal power flow-based nonlinear optimisation model. Moreover, the beneficial impact of active network management (ANM) on enhancing the renewable complementarity is also investigated. The combination of complementary hybrid generation and ANM, specifically where the maxima of the generation profiles rarely co-occur with each other and with the demand minimum, is found to make the best use of the network components.

ACS Style

Wei Sun; Sam Harrison; Gareth P. Harrison. Value of Local Offshore Renewable Resource Diversity for Network Hosting Capacity. Energies 2020, 13, 5913 .

AMA Style

Wei Sun, Sam Harrison, Gareth P. Harrison. Value of Local Offshore Renewable Resource Diversity for Network Hosting Capacity. Energies. 2020; 13 (22):5913.

Chicago/Turabian Style

Wei Sun; Sam Harrison; Gareth P. Harrison. 2020. "Value of Local Offshore Renewable Resource Diversity for Network Hosting Capacity." Energies 13, no. 22: 5913.

Journal article
Published: 02 July 2020 in Energies
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This paper provides the result of a techno-economic study of potential energy storage technologies deployable at wind farms to provide short-term ancillary services such as inertia response and frequency support. Two different scenarios are considered including a single energy storage system for the whole wind farm and individual energy storage for each wind turbine (located at either the dc or the ac side of its grid-side converter). Simulations are introduced to check the technical viability of the proposal with different control strategies. Power and energy capability requirements demanded by both specific services are defined for each studied case based on present and future grid code needs. Based on these requirements, the study compares a wide range of energy storage technologies in terms of present-day technical readiness and properties and identifies potential candidate solutions. These are flywheels, supercapacitors, and three chemistries out of the Li-ion battery family. Finally, the results of a techno-economic assessment (mainly based on weight, volume, lifetime, and industry-confirmed costings) detail the advantages and disadvantages of the proposed solutions for the different scenarios under consideration. The main conclusion is that none of the candidates are found to be clearly superior to the others over the whole range of scenarios. Commercially available solutions have to be tailored to the different requirements depending on the amount of inertia, maximum Rate of Change of Frequency and maximum frequency deviation to be allowed.

ACS Style

Hector Beltran; Sam Harrison; Agustí Egea-Àlvarez; Lie Xu. Techno-Economic Assessment of Energy Storage Technologies for Inertia Response and Frequency Support from Wind Farms. Energies 2020, 13, 3421 .

AMA Style

Hector Beltran, Sam Harrison, Agustí Egea-Àlvarez, Lie Xu. Techno-Economic Assessment of Energy Storage Technologies for Inertia Response and Frequency Support from Wind Farms. Energies. 2020; 13 (13):3421.

Chicago/Turabian Style

Hector Beltran; Sam Harrison; Agustí Egea-Àlvarez; Lie Xu. 2020. "Techno-Economic Assessment of Energy Storage Technologies for Inertia Response and Frequency Support from Wind Farms." Energies 13, no. 13: 3421.