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Title: HYDROSTATIC POWER TRANSMISSION SYSTEM FOR WIND TURBINES
HYDROSTATIC POWER TRANSMISSION SYSTEM FOR WIND TURBINES

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Catalin Dumitrescu; Alexandru-Polifron Chiri?a; ?tefan-Mihai ?efu; Adriana Mariana Bor?; Ana-Maria Carla Popescu
10.5593/sgem2024/4.1/s17.14
10.5593/sgem2024/4.1
1314-2704
978-619-7603-71-2
English
24
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
17.Renewable Energy Sources and Clean Technologies
In 2023, 18.3 GW of new wind energy conversion capacity was installed in Europe; most of them (79%) represent onshore capacities. Most of this energy production is achieved with horizontal axis wind turbines. For this type of turbine, the location of the transmission coupled with an electric generator or a hydraulic group, in the turbine platform, leads to a significant increase in the mass of the platform, and implicitly in the mass of the pillar that supports the turbine. In addition, turbine maintenance becomes more difficult as the rotor diameter and installation height increase. The platform (excluding the rotor) represents between 20 ... 35% of the total weight of a large turbine reaching hundreds of tonnes in some cases. In the case of the VESTAS V90 turbine, the platform weighs 75 tonnes, the rotor 40 tonnes, and the tower 152 tonnes. For this reason, methods of reducing the suspended mass, mainly by placing the electric generator on the ground, have been and are being intensively studied in the last decades. If at the beginning large power turbines were studied, recently medium and small sized turbines are also being considered. The paper presents a solution for hydrostatic transmission of energy from the turbine rotor to the generator, validated by numerical simulation with Simcenter Amesim.
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This work was carried out through the Core Program within the National Research Development and Innovation Plan 2022-2027, carried out with the support of the Romanian Ministry of Research, Innovation and Digitalization (MCID), project no. PN 23 05. The research was financially supported by a project funded by MCID through Programme 1 – Development of the national research & development system, Sub-programme 1.2–Institutional performance–Projects financing the R&D&I excellence, Financial Agreement no. 18PFE/30.12.2021.
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https://doi.org/10.5593/sgem2024/4.1/s17.14
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
115-122
1 - 7 July, 2024
website
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renewable, wind energy, hydrostatic transmission, wind turbine, numerical simulation

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