Combined wind turbine fatigue and ultimate load reduction by individual blade control

Han, Yaozhen; Leithead, W.E.

doi:10.1088/1742-6596/524/1/012062

Cited by 17 publications

(13 citation statements)

References 3 publications

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“…One of the simplest forms of IPC strategies is the single-blade control and this concept was originated by Leithead, Neilson, Dominguez, and Dutka (2009) and . As depicted in Figure 3.2, the single-blade control, also later termed as individual blade control (Han & Leithead, 2014), equips each blade with its own controller for attenuating the blade, where the blade controller actuates in response to its local blade measurements. Unlike the Coleman transform-based control, the single-blade control does not involve any coordinate transformations, and this type of IPC strategies has a decoupled structure, consisting of three SISO controllers,…”

Section: Single-blade Controlmentioning

confidence: 99%

“…where the blade controller K ∈ R is designed to attenuate the blade loads at 1p, 2p and 4p frequencies. This form of IPC (3.8) is investigated by many studies, for example, Yi and Leithead (2012) and Han and Leithead (2014) examined the performance of the single-blade controller in terms of fatigue and ultimate load reductions.…”

Section: Single-blade Controlmentioning

confidence: 99%

“…The second branch of IPC targets load reductions upon the rotating turbine structures, primarily the blades. Single-blade control Leithead, Neilson, Dominguez, & Dutka, 2009), later termed individual blade control (Han & Leithead, 2014), equips each blade with its own controller that actuates in response to local blade load measurements. The overall IPC controller is thus formed from three identical single-input-single-output (SISO) controllers acting independently from one another.…”

Section: Introductionmentioning

confidence: 99%

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Blade-Pitch Control for Wind Turbine Load Reductions

Lio

2018

Springer Theses

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Large wind turbines are subjected to the harmful loads that arise from the spatially uneven and temporally unsteady oncoming wind. Such loads are the known sources of fatigue damage that reduce the turbine operational lifetime, ultimately increasing the cost of wind energy to the end users. In recent years, a substantial amount of studies has focused on blade pitch control and the use of real-time wind measurements, with the aim of attenuating the structural loads on the turbine blades and rotor. I also would like to thank my colleagues for some interesting discussions that helped my

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Section: Single-blade Controlmentioning

confidence: 99%

Section: Single-blade Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Blade-Pitch Control for Wind Turbine Load Reductions

Lio

2018

Springer Theses

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“…This can be done adopting different approaches: (i) through advanced components mechanical design, (ii) through the introduction of new materials or (iii) by improving the control itself. In [15], combined control of the pitch blade is proposed to reduce the dynamic loads acting on the system. However, this work is limited to load reduction without any evaluation of the power extraction.…”

Section: Introductionmentioning

confidence: 99%

Trade‐off between power extraction maximisation and fatigue reduction in wind farms via second‐order sliding mode control and min–max optimisation

Capello

Wada²,

Punta

et al. 2020

IET Control Theory & Appl

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“…Single-blade control (W. W. E. Leithead, Neilson, Dominguez, & Dutka, 2009), later termed individual blade control (Han & Leithead, 2014), equips each blade with its own controller that actuates in response to local blade load measurements. The overall IPC controller is thus formed from three identical single-input-single-output (SISO) controllers acting independently from one another.…”

Section: Introductionmentioning

confidence: 99%

Fundamental performance similarities between individual pitch control strategies for wind turbines

Lio

Jones

et al. 2015

International Journal of Control

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The use of blade individual pitch control (IPC) offers a means of reducing the harmful turbine structural loads that arise from the uneven and unsteady forcing from the oncoming wind. In recent years two different and competing IPC techniques have emerged that are characterised by the specific loads that they are primarily designed to attenuate. In the first instance, methodologies such as single-blade control and Clarke Transform-based control have been developed to reduce the unsteady loads on the rotating blades, whilst tilt-yaw control and its many variants instead target load reductions in the non rotating turbine structures, such as the tower and main bearing. Given the seeming disparities between these controllers, the aim of this paper is to show the fundamental performance similarities that exist between them and hence unify research in this area. Specifically, we show that single-blade controllers are equivalent to a particular class of tilt-yaw controller, which itself is equivalent to Clarke Transform-based control. This means that three architecturally dissimilar IPC controllers exist that yield exactly the same performance in terms of load reductions on fixed and rotating turbine structures. We further demonstrate this outcome by presenting results obtained from high-fidelity closed-loop turbine simulations.

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Combined wind turbine fatigue and ultimate load reduction by individual blade control

Cited by 17 publications

References 3 publications

Blade-Pitch Control for Wind Turbine Load Reductions

Blade-Pitch Control for Wind Turbine Load Reductions

Trade‐off between power extraction maximisation and fatigue reduction in wind farms via second‐order sliding mode control and min–max optimisation

Fundamental performance similarities between individual pitch control strategies for wind turbines

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