Academic
Publications
A new active speed stall control compared to pitch control for a direct-drive wind turbine

A new active speed stall control compared to pitch control for a direct-drive wind turbine,D. J. Bang,H. Polinder,J. A. Ferreira,R. P. J. O. M. van Ro

A new active speed stall control compared to pitch control for a direct-drive wind turbine   (Citations: 2)
BibTex | RIS | RefWorks Download
,Abstract-The objective of this paper is to assess 10 MW direct- drive permanent-magnet (DDPM) generator systems with different control strategies namely pitch control and active speed stall control. In the active speed stall control concept, there is no pitch mechanism, and the rotor speed is actively controlled by the generator to control the output power. The active speed stall control wind turbine with the DDPM generator system may be anattractive concept especially for offshore. This turbine has high potential because the wear, the maintenance and the failures ofthe pitch mechanism and the gearbox are omitted. The different DDPM generator systems are designed roughly, and the dimensions, weights, cost and performance of the systems are compared. To enable the active speed stall control concept, it is necessary to increase the weight and cost of generator system compared to the pitch control concept. Index Terms-wind turbine, permanent-magnet, generator,
Published in 2007.
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
    • ...Direct-drive wind turbines have been built to increase the energy yield, to reduce the gearbox failures, and to lower the maintenance problems [1][2][3]...
    • ...The main parameters of a 10 MW TFPM machine to design in this paper are the same with the parameters of the RFPM machine discussed in [2, 3] as the following...

    Deok-Je Banget al. Design of a Lightweight Transverse Flux Permanent Magnet Machine for D...

    • ...Thelargest direct-drive windturbine isE-112model(4.5 MW, EESGDD)ofEnercon GmbH as showninFig. 3.Thegenerator massanddiameter areabout 220tonand12m,respectively [2][7]...
    • ...Themassofa10MW PMSGDD system in[3][4] hasbeenobtained withKraa70 .16.Inthis paper, 10MW generator withKrachO.3 isadditionally considered tocompare withthegenerator withKrachO0...
    • ...Assuming KrachO.4 andmlTh25 kg/kNm, 20MW generator masswasgained byrough design...
    • ...Fig.g1: Masscomparison ofdifferent direct-drive generators (2,T3 and5MW [2], 1h0 MW with Krad=m .16[3][4])...
    • ...* Theincreased iron coreareacanproduce higher induced voltage bytheincreased flux linkage as shownin(4)...

    Deok-je Banget al. Promising Direct-Drive Generator System for Large Wind Turbines

Sort by: