Power-Split Hydrostatic Transmissions for Wind Energy Systems

Francesco Bottiglione, Giacomo Mantriota and Marco Valle
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Francesco Bottiglione: Department of Mechanics Mathematics and Management (DMMM), Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, Italy
Giacomo Mantriota: Department of Mechanics Mathematics and Management (DMMM), Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, Italy
Marco Valle: Department of Mechanics Mathematics and Management (DMMM), Polytechnic University of Bari, Viale Japigia 182, 70126 Bari, Italy

Energies, 2018, vol. 11, issue 12, 1-15

Abstract: In a wind turbine, if a continuously variable transmission is placed between the turbine rotor and the generator, the speed ratio can be tuned to match the variable rotor speed to the constant speed of the electric generator, thus eliminating the need to adapt the frequency to the grid. In this paper, power-split hydrostatic transmission (PS-HTS) architecture is proposed as a suitable continuously variable transmission for application to wind turbine systems. The performance of PS-HTS is modelled and compared with that of previously proposed architectures in which the hydrostatic transmission is placed in-line with traditional drives (in-line HTS). It is shown here that the PS-HTS can improve the annual energy production of a 250 kW rated power wind turbine of about 10–11% by employing a hydrostatic transmission with one-seventh the size of the one requested by in-line HTS architecture.

Keywords: wind turbine; hydrostatic transmission; CVT; power flow; power split (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 (2)

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