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Power Control Strategies for a Smoother Power Output from a Wave Power Plant
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.ORCID iD: 0000-0002-6575-7878
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
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2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents power output and power control strategies for a wave power plant. Three cases are presented; active power output without power smoothing control, active power output with an energy storage to smooth the power output to the grid, active- and reactive power control using the grid side inverter and an energy storage. The model is constructed in MATLAB Simulink and is based on the wave energy converter technology developed at Uppsala University. The model input is wave height data from the Wave Hub test site, UK. The study show that without power control, the output power is fluctuating significantly during a 60 second time period. The difference between the average power output and the maximum power peaks can be as high as a factor of 6. By using an energy storage a significant reduction of the power fluctuation, to approximately ± 10 %, can be achieved. Even with the high intermittency of the input power, it is possible to control the active- and reactive power output to the grid. Thus, it is shown that it is possible to provide grid support functions, which are needed in the transition to a higher penetration of renewable energy sources on the grid.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Active- and reactive power control, grid connection of wave power, power smoothing, renewable integration
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:uu:diva-399963OAI: oai:DiVA.org:uu-399963DiVA, id: diva2:1379612
Conference
European Wave and Tidal Energy Conference (EWTEC)
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy StorageAvailable from: 2019-12-17 Created: 2019-12-17 Last updated: 2020-01-08

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Anttila, SaraTemiz, IrinaOliveira, Janaína Goncalves deLeijon, JenniferParwal, ArvindBoström, Cecilia

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CiteExportLink to record
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