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  4. Reducing rotor speed variations of floating wind turbines by compensation of non-minimum phase zeros
 
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2013
Zeitschriftenaufsatz
Titel

Reducing rotor speed variations of floating wind turbines by compensation of non-minimum phase zeros

Abstract
Applying a land-based designed pitch controller on a floating wind turbine may cause severe instability. A common strategy to overcome this problem is to reduce the closed-loop bandwidth of the pitch control system. In doing so, the generator speed variation increases possibly leading to shutdowns because of overspeed. This study uses a parallel path modification to avoid instability without increasing the generator speed variation. The results of comprehensive simulations and load calculations carried out on a benchmark wind turbine are presented. These demonstrate that by using the proposed method it is possible to apply the land-based designed pitch controller on its floater-based equivalent.
Author(s)
Fischer, Boris
Zeitschrift
IET renewable power generation
Thumbnail Image
DOI
10.1049/iet-rpg.2012.0263
Language
Englisch
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