Field testing of linear individual pitch control on the two-bladed controls advanced research turbine

van Solingen, Edwin; Fleming, Paul A.; Scholbrock, Andrew; van Wingerden, Jan-Willem

doi:10.1002/we.1841

Title: Field testing of linear individual pitch control on the two-bladed controls advanced research turbine

Journal Article · Fri Apr 17 00:00:00 EDT 2015 · Wind Energy

DOI:https://doi.org/10.1002/we.1841· OSTI ID:1239055

van Solingen, Edwin ^[1]; Fleming, Paul A. ^[2]; Scholbrock, Andrew ^[2]; van Wingerden, Jan-Willem ^[1]

Delft Univ. of Technology (Netherlands). Delft Center for Systems and Control
National Renewable Energy Lab. (NREL), Golden, CO (United States). National Wind Technology Center

This paper presents the results of field tests using linear individual pitch control (LIPC) on the two-bladed Controls Advanced Research Turbine 2 (CART2) at the National Renewable Energy Laboratory (NREL). LIPC has recently been introduced as an alternative to the conventional individual pitch control (IPC) strategy for two-bladed wind turbines. The main advantage of LIPC over conventional IPC is that it requires, at most, only two feedback loops to potentially reduce the periodic blade loads. In previous work, LIPC was designed to implement blade pitch angles at a fixed frequency (e.g., the once-per-revolution (1P) frequency), which made it only applicable in above-rated wind turbine operating conditions. In this study, LIPC is extended to below-rated operating conditions by gain scheduling the controller on the rotor speed. With this extension, LIPC and conventional IPC are successfully applied to the NREL CART2 wind turbine. Lastly, the field-test results obtained during the measurement campaign indicate that LIPC significantly reduces the wind turbine loads for both below-rated and above-rated operation.

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Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1239055

Report Number(s):: NREL/JA-5000-63224

Journal Information:: Wind Energy, Vol. 19, Issue 3; ISSN 1095-4244

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 13 works

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Quantification of the S817 airfoil aerodynamic properties and their control using synthetic jet actuators: RICE ET AL. Rice, Thomas T.; Taylor, Keith; Amitay, Michael Wind Energy, Vol. 21, Issue 10 https://doi.org/10.1002/we.2197	journal	May 2018
Analysis and optimal individual pitch control decoupling by inclusion of an azimuth offset in the multiblade coordinate transformation: Analysis of IPC decoupling by an offset in the MBC transformation Mulders, Sebastiaan Paul; Pamososuryo, Atindriyo Kusumo; Disario, Gianmarco Emilio Wind Energy, Vol. 22, Issue 3 https://doi.org/10.1002/we.2289	journal	November 2018
Modal dynamics of structures with bladed isotropic rotors and its complexity for two-bladed rotors Hansen, Morten Hartvig Wind Energy Science, Vol. 1, Issue 2 https://doi.org/10.5194/wes-1-271-2016	journal	January 2016

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