Adding Feedforward Blade Pitch Control to Standard Feedback Controllers for Load Mitigation in Wind Turbines

Fiona Dunne; Lucy Y. Pao; Alan D. Wright; Bonnie Jonkman; Neil Kelley

doi:10.1016/j.mechatronics.2011.02.011

Adding Feedforward Blade Pitch Control to Standard Feedback Controllers for Load Mitigation in Wind Turbines

Fiona Dunne, Lucy Y. Pao, Alan D. Wright, Bonnie Jonkman, Neil Kelley

Center for Energy Conversion and Storage Systems

Research output: Contribution to journal › Article › peer-review

82 Scopus Citations

Abstract

Combined feedback/feedforward blade pitch control is compared to industry standard feedback control when simulated in realistic turbulent winds. The feedforward controllers are designed to reduce fatigue loads, increasing turbine lifetime and therefore reducing the cost of energy. Two feedforward designs are studied: collective-pitch model-inverse feedforward using a non-causal series expansion and individual-pitch gain-scheduled shaped compensator. The input to the feedforward controller is a measurement of incoming wind speed, which could potentially be provided by LIDAR. Three of the designs reduce structural loading compared to standard feedback control, without reducing power production.

Original language	American English
Pages (from-to)	682-690
Number of pages	9
Journal	Mechatronics
Volume	21
Issue number	4
DOIs	https://doi.org/10.1016/j.mechatronics.2011.02.011 https://doi.org/10.1016/j.mechatronics.2011.02.011
State	Published - 2011

NREL Publication Number

NREL/JA-5000-52331

Keywords

blade pitch
feedback
feedforward
LIDAR
model-inverse
pitch control
wind turbines

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title = "Adding Feedforward Blade Pitch Control to Standard Feedback Controllers for Load Mitigation in Wind Turbines",

abstract = "Combined feedback/feedforward blade pitch control is compared to industry standard feedback control when simulated in realistic turbulent winds. The feedforward controllers are designed to reduce fatigue loads, increasing turbine lifetime and therefore reducing the cost of energy. Two feedforward designs are studied: collective-pitch model-inverse feedforward using a non-causal series expansion and individual-pitch gain-scheduled shaped compensator. The input to the feedforward controller is a measurement of incoming wind speed, which could potentially be provided by LIDAR. Three of the designs reduce structural loading compared to standard feedback control, without reducing power production.",

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AU - Dunne, Fiona

AU - Pao, Lucy Y.

AU - Wright, Alan D.

AU - Jonkman, Bonnie

AU - Kelley, Neil

PY - 2011

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AB - Combined feedback/feedforward blade pitch control is compared to industry standard feedback control when simulated in realistic turbulent winds. The feedforward controllers are designed to reduce fatigue loads, increasing turbine lifetime and therefore reducing the cost of energy. Two feedforward designs are studied: collective-pitch model-inverse feedforward using a non-causal series expansion and individual-pitch gain-scheduled shaped compensator. The input to the feedforward controller is a measurement of incoming wind speed, which could potentially be provided by LIDAR. Three of the designs reduce structural loading compared to standard feedback control, without reducing power production.

KW - blade pitch

KW - feedback

KW - feedforward

KW - LIDAR

KW - model-inverse

KW - pitch control

KW - wind turbines

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Adding Feedforward Blade Pitch Control to Standard Feedback Controllers for Load Mitigation in Wind Turbines

Abstract

NREL Publication Number

Keywords

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