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Electrical Systems for Marine Renewable Energy Applications

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 6952

Special Issue Editors


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Guest Editor
Department of Electrical Engineering, Uppsala University, Lägerhyddsvägen 1, 75121 Uppsala, Sweden
Interests: renewable energy; off-shore systems; power system analysis; micro grids; energy storage; power electronics; electromobility

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Guest Editor
Department of Electrical Engineering, Uppsala University, Lägerhyddsvägen 1, 75121 Uppsala, Sweden
Interests: marine renewable energy; control of renewable energy devices; grid integration of marine energy converters; power converters and renewable energy systems
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Special Issue Information

Dear Colleagues,

Renewable energy sources such as solar PV and wind power plants have reached the commercial level and have been actively integrated into the grids locally (distributed generation) as well as on a larger scale (large solar PV and wind power farms). According to recently announced sustainability targets by the European commission, an even larger share of renewable energy generation should be reached in the coming decades. This offers multiple challenges related to grid stability with a large share of renewable energy generation. Marine renewable energy has been demonstrated to have less variability over a longer time scale, better predictability when compared with solar irradiation and wind, and, at the same time, marine renewable energy sources are relatively uncorrelated in many areas with wind.

In this light, marine energy can be a good source to balance the variability of other renewable energy sources, particularly wind and solar PV, to balance the grid. However, many challenges need to be addressed, including the safety and technical capacity of the shared infrastructure of offshore renewable energy sources, component development for efficient power transmission over long distances, and their applicability to specific technologies or their hybrid solutions. To what extent standard off-the-shelf energy conversion solutions existing now on the market are applicable to marine renewable energy should also be explored.

With this Special Issue, we would like to highlight the importance of research within the field of power system analysis for marine renewable applications. We encourage contributions discussing grid codes and standardization for off-shore renewable energy.

Dr. Cecilia Boström
Prof. Dr. Irina Temiz
Guest Editors

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Keywords

  • Marine renewable energy power systems 
  • Grid codes 
  • Power quality analysis 
  • Hybrid solutions 
  • Standardization 
  • Power converters and control

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Published Papers (2 papers)

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Research

15 pages, 5691 KiB  
Article
Research on Wave and Energy Reduction Performance of Floating Breakwater Based on S-Shaped Runner
by Lingjie Bao, Ying Wang, Chuhua Jiang, Junhua Chen, Hao Li and Shenghu Wang
Energies 2022, 15(14), 5148; https://doi.org/10.3390/en15145148 - 15 Jul 2022
Cited by 1 | Viewed by 1609
Abstract
Aiming at the breeding environment where the construction of marine pastures requires low wind and waves, a floating breakwater (FB) with a Savonius type (referred to as S type) runner with wave absorption and energy reduction function is studied for wave absorption and [...] Read more.
Aiming at the breeding environment where the construction of marine pastures requires low wind and waves, a floating breakwater (FB) with a Savonius type (referred to as S type) runner with wave absorption and energy reduction function is studied for wave absorption and energy reduction in aquaculture sea areas. The wave-absorbing and energy-reducing performance of the floating breakwater is studied by the method of combining numerical simulation and experiment. Using Star-CCM+ numerical simulation software, based on linear wave theory and energy conservation law, using overlapping grid technology, calling DFBI model, second-order time discretization, a three-dimensional flow field model of the floating breakwater was established and numerically simulated. At the same time, a floating breakwater physical test system was developed for experimental verification, the transmission wave and the conversion power consumption of the S-shaped runner under different wave heights and different periods were measured, and the results Please carefully check the accuracy of names and affiliations. of numerical simulation and physical experiments were comprehensively evaluated. The research results show that the floating breakwater based on the S-shaped runner has the functions of reducing the wave height and reducing the wave energy, which have guiding significance for practical engineering. Full article
(This article belongs to the Special Issue Electrical Systems for Marine Renewable Energy Applications)
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26 pages, 5058 KiB  
Article
Level-Shift PWM Control of a Single-Phase Full H-Bridge Inverter for Grid Interconnection, Applied to Ocean Current Power Generation
by Luis A. Garcia-Reyes, Aurelio Beltrán-Telles, Francisco Bañuelos-Ruedas, Manuel Reta-Hernández, Juan M. Ramírez-Arredondo and Rodolfo Silva-Casarín
Energies 2022, 15(5), 1644; https://doi.org/10.3390/en15051644 - 23 Feb 2022
Cited by 6 | Viewed by 4702
Abstract
A small prototype of a 5-level single-phase full H-bridge inverter for ocean current applications is presented. The inverter was designed applying level-shift control in pulse-width modulation (LS-PWM), and experimental tests were conducted using a variety of modulation subschemes, including in-phase disposition (IPD), alternate-phase [...] Read more.
A small prototype of a 5-level single-phase full H-bridge inverter for ocean current applications is presented. The inverter was designed applying level-shift control in pulse-width modulation (LS-PWM), and experimental tests were conducted using a variety of modulation subschemes, including in-phase disposition (IPD), alternate-phase opposition–disposition (APOD), and phase opposition–disposition (POD). The test results were examined for harmonic content and voltage total harmonic distortion (THDV). The results suggest that the inverter presents a viable solution with significant potential for the development of a larger three-phase inverter model that can be used to connect ocean current power sources to the electrical grid. Full article
(This article belongs to the Special Issue Electrical Systems for Marine Renewable Energy Applications)
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