scholarly journals Wind shear for large wind turbine generators at selected tall tower sites

1984 ◽  
Author(s):  
D.L. Elliott
Keyword(s):  
Wind Turbine ◽  
Wind Shear ◽  
Turbine Generators ◽  
Wind Turbine Generators ◽  
Large Wind ◽  
Tall Tower

scholarly journals Wind shear climatology for large wind turbine generators

1982 ◽  
Author(s):  
D.L. Elliott ◽  
L.L. Wendell ◽  
S.K. Heflick
Keyword(s):  
Wind Turbine ◽  
Wind Shear ◽  
Turbine Generators ◽  
Wind Turbine Generators ◽  
Large Wind

Evaluation of Human Exposure to the Noise from Large Wind Turbine Generators

1983 ◽  
Vol 21 (1) ◽  
pp. 30 ◽  
Author(s):  
Kevin P. Shepherd ◽  
Ferdinand W. Grosveld ◽  
David G. Stephens
Keyword(s):  
Wind Turbine ◽  
Human Exposure ◽  
Turbine Generators ◽  
Wind Turbine Generators ◽  
Large Wind

Bayesian Networks in Electric Reliability Assessment of Doubly-Fed Wind Turbine Generator

2014 ◽  
Vol 494-495 ◽  
pp. 1791-1794 ◽  
Author(s):  
Hai Ning Pan ◽  
Ming Qin ◽  
Jun Zhang ◽  
Chao Chang ◽  
Pan Lei
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Reliability Assessment ◽  
Turbine Generator ◽  
Turbine Generators ◽  
Wind Turbine Generators ◽  
Reliability Methods ◽  
Doubly Fed ◽  
Electrical Components ◽  
Large Wind

For the development of large wind turbines, the approach of trial and error is also not adequate for mass produced wind turbines, a reliability-concerned manufacturing must be involved for the future development. An approach which introduces probabilistic reliability assessment which incorporates reliability methods into wind turbine engineering is described. Fault Tree of wind turbine generators electrical components is firstly built. Then it is transformed to the Bayesian network and probabilistic distribution is preceded using Markov chain Monte Carlo inference. Finally a set of qualitative and quantitative reliability is given according to a specific probabilistic input.

Noise Characteristics of Large Wind Turbine Generators

1983 ◽  
Vol 21 (1) ◽  
pp. 21 ◽  
Author(s):  
Harvey H. Hubbard ◽  
Ferdinand W. Grosveld ◽  
Kevin P. Shepherd
Keyword(s):  
Wind Turbine ◽  
Turbine Generators ◽  
Wind Turbine Generators ◽  
Noise Characteristics ◽  
Large Wind

scholarly journals A Rare-Earth Free Magnetically Geared Generator for Direct-Drive Wind Turbines

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 447 ◽  
Author(s):  
Reza Zeinali ◽  
Ozan Keysan
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Outer Diameter ◽  
Direct Drive ◽  
Torque Density ◽  
Turbine Generators ◽  
Wind Turbine Generators ◽  
Pole Type ◽  
Structural Mass ◽  
Large Wind

A novel Vernier type magnetically geared direct-drive generator for large wind turbines is introduced in this paper. Conventional Vernier-type machines and most of the direct-drive wind turbine generators use excessive amount of permanent magnet, which increases the overall cost and makes the manufacturing process challenging. In this paper, an electrically excited (PM_less) claw-pole type Vernier machine is presented. This new topology has the potential of reducing mass and cost of the generator, and can make the construction easy in manufacturing and handling. Analytical designs are verified using 3D finite-element simulations and several designs are evaluated to find the optimum design for a 7.5 MW, 12 rpm wind turbine application. It is shown, that the required torque can be achieved with an outer diameter of 7.5 m, and with a mass of 172 t (including the structural mass). The proposed generator is compared with commercial direct-drive generators, and it is found that the proposed generator has the highest torque density with 34.7 kNm/t.

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