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Feasibility studies of a converter-free grid-connected offshore hydrostatic wind turbine
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Lin, Shuyue, Zhao, Xiaowei and Tong, Xin (2020) Feasibility studies of a converter-free grid-connected offshore hydrostatic wind turbine. IEEE Transactions on Sustainable Energy, 11 (4). pp. 2494-2503. doi:10.1109/TSTE.2019.2963628 ISSN 1949-3029.
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WRAP-feasibility-studies-converter-free-offshore-wind-Tong-2019.pdf - Accepted Version - Requires a PDF viewer. Download (2331Kb) | Preview |
Official URL: http://dx.doi.org/10.1109/TSTE.2019.2963628
Abstract
Owing to the increasing penetration of renewable power generation, the modern power system faces great challenges in frequency regulations and reduced system inertia. Hence, renewable energy is expected to take over part of the frequency regulation responsibilities from the gas or hydro plants and contribute to the system inertia. In this article, we investigate the feasibility of frequency regulation by the offshore hydrostatic wind turbine (HWT). The simulation model is transformed from NREL (National Renewable Energy Laboratory) 5-MW gearbox-equipped wind turbine model within FAST (fatigue, aerodynamics, structures, and turbulence) code. With proposed coordinated control scheme and the hydrostatic transmission configuration of the HWT, the `continuously variable gearbox ratio' in turbulent wind conditions can be realised to maintain the constant generator speed, so that the HWT can be connected to the grid without power converters in-between. To test the performances of the control scheme, the HWT is connected to a 5-bus grid model and operates with different frequency events. The simulation results indicate that the proposed control scheme is a promising solution for offshore HWT to participated in frequency response in the modern power system.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Hydrostatics , Wind turbines, Offshore wind power plants , Frequency response (Electrical engineering) | ||||||||
Journal or Publication Title: | IEEE Transactions on Sustainable Energy | ||||||||
Publisher: | IEEE | ||||||||
ISSN: | 1949-3029 | ||||||||
Official Date: | October 2020 | ||||||||
Dates: |
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Volume: | 11 | ||||||||
Number: | 4 | ||||||||
Page Range: | pp. 2494-2503 | ||||||||
DOI: | 10.1109/TSTE.2019.2963628 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 2 January 2020 | ||||||||
Date of first compliant Open Access: | 6 January 2020 | ||||||||
RIOXX Funder/Project Grant: |
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