Conceptual Synthesis of Speed Increasers for Wind Turbine Conversion Systems

Radu Saulescu, Mircea Neagoe and Codruta Jaliu
Additional contact information
Radu Saulescu: Design of Mechanical Elements and Systems R&D Centre, Transilvania University of Brasov, Brasov 500036, Romania
Mircea Neagoe: Renewable Energy Systems and Recycling R&D Centre, Transilvania University of Brasov, Brasov 500036, Romania
Codruta Jaliu: Renewable Energy Systems and Recycling R&D Centre, Transilvania University of Brasov, Brasov 500036, Romania

Energies, 2018, vol. 11, issue 9, 1-33

Abstract: Most wind turbines (WT) are of the single-rotor type, which means they are simple, reliable and durable, but unlikely to convert more than 40% of the available wind energy. Different solutions are proposed to minimize WT energy loss and improve performance, such as the use of speed increasers, counter-rotating wind rotors or counter-rotating electric generators. Downsizing the design, saving weight and reducing the cost of WT conversion systems, while increasing their efficiency, have posed constant challenges to WT designers. Nevertheless, very little research in the field is concerned with, and partially recommends, the design of conversion systems. Therefore, the aim of this paper is to propose a specific algorithm for the conceptual synthesis of speed increasers integrated in WT conversion systems, starting with an inventory of all combinations of the main components of a conversion system that prove compatible for efficient functioning. The algorithm is structured in two sections: the first one includes a four-step approach to WT system design, while the second one follows a three-step procedure for identifying the speed increaser concept. Twenty-two variants of speed increasers are further generated and analyzed, four of which are innovative solutions proposed by the authors. The paper also provides guidelines for identifying the WT conversion system concept according to the circumstances of its application.

Keywords: wind energy conversion system; wind turbine; conceptual synthesis; speed increaser; counter-rotating wind rotors; counter-rotating electric generator; structural, kinematic, static analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/11/9/2257/pdf (application/pdf)
https://www.mdpi.com/1996-1073/11/9/2257/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:11:y:2018:i:9:p:2257-:d:166111

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().