Integrating Robust Lidar-based Feedforward with Feedback Control to Enhance Speed Regulation of Floating Wind Turbines

Paul Fleming; S. Navalkar; J. W. van Wingerden; G. A. M. van Kuik

doi:10.1109/ACC.2015.7171804

Integrating Robust Lidar-based Feedforward with Feedback Control to Enhance Speed Regulation of Floating Wind Turbines

Paul Fleming, S. Navalkar, J. W. van Wingerden, G. A. M. van Kuik

National Wind Technology Center

Delft University of Technology

Research output: Contribution to conference › Paper › peer-review

17 Scopus Citations

Abstract

The structural cost of offshore wind energy can be drastically reduced by the development of floating wind turbines. However, the design of a feedback controller for rotor speed control of such turbines faces fundamental bandwidth limitations because of the presence of nonminimum phase zeros. New developments in lidar technology enable turbines to measure the incoming wind and use the measurements for feedforward control. This paper explores the possibility of combining lidar feedforward with feedback control for floating wind turbines to enhance the speed control performance and increase controller bandwidth without affecting stability. Robust stability and performance of the controllers are investigated. The controllers are validated using the high-fidelity simulation environment FAST for floating turbines with lidar, and enhanced control performance is achieved.

Original language	American English
Pages	3070-3075
Number of pages	6
DOIs	https://doi.org/10.1109/ACC.2015.7171804 https://doi.org/10.1109/ACC.2015.7171804
State	Published - 28 Jul 2015
Event	2015 American Control Conference, ACC 2015 - Chicago, United States Duration: 1 Jul 2015 → 3 Jul 2015

Conference

Conference	2015 American Control Conference, ACC 2015
Country/Territory	United States
City	Chicago
Period	1/07/15 → 3/07/15

Bibliographical note

Publisher Copyright:
© 2015 American Automatic Control Council.

NREL Publication Number

NREL/CP-5000-63706

Keywords

feedforward
floating wind turbines
LIDAR
NREL
offshore wind
speed regulation

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Fleming, P., Navalkar, S., van Wingerden, J. W., & van Kuik, G. A. M. (2015). Integrating Robust Lidar-based Feedforward with Feedback Control to Enhance Speed Regulation of Floating Wind Turbines. 3070-3075. Paper presented at 2015 American Control Conference, ACC 2015, Chicago, United States. https://doi.org/10.1109/ACC.2015.7171804, https://doi.org/10.1109/ACC.2015.7171804

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abstract = "The structural cost of offshore wind energy can be drastically reduced by the development of floating wind turbines. However, the design of a feedback controller for rotor speed control of such turbines faces fundamental bandwidth limitations because of the presence of nonminimum phase zeros. New developments in lidar technology enable turbines to measure the incoming wind and use the measurements for feedforward control. This paper explores the possibility of combining lidar feedforward with feedback control for floating wind turbines to enhance the speed control performance and increase controller bandwidth without affecting stability. Robust stability and performance of the controllers are investigated. The controllers are validated using the high-fidelity simulation environment FAST for floating turbines with lidar, and enhanced control performance is achieved.",

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author = "Paul Fleming and S. Navalkar and {van Wingerden}, {J. W.} and {van Kuik}, {G. A. M.}",

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doi = "10.1109/ACC.2015.7171804",

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Fleming, P, Navalkar, S, van Wingerden, JW & van Kuik, GAM 2015, 'Integrating Robust Lidar-based Feedforward with Feedback Control to Enhance Speed Regulation of Floating Wind Turbines', Paper presented at 2015 American Control Conference, ACC 2015, Chicago, United States, 1/07/15 - 3/07/15 pp. 3070-3075. https://doi.org/10.1109/ACC.2015.7171804, https://doi.org/10.1109/ACC.2015.7171804

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AU - van Kuik, G. A. M.

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AB - The structural cost of offshore wind energy can be drastically reduced by the development of floating wind turbines. However, the design of a feedback controller for rotor speed control of such turbines faces fundamental bandwidth limitations because of the presence of nonminimum phase zeros. New developments in lidar technology enable turbines to measure the incoming wind and use the measurements for feedforward control. This paper explores the possibility of combining lidar feedforward with feedback control for floating wind turbines to enhance the speed control performance and increase controller bandwidth without affecting stability. Robust stability and performance of the controllers are investigated. The controllers are validated using the high-fidelity simulation environment FAST for floating turbines with lidar, and enhanced control performance is achieved.

KW - feedforward

KW - floating wind turbines

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KW - speed regulation

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Integrating Robust Lidar-based Feedforward with Feedback Control to Enhance Speed Regulation of Floating Wind Turbines

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

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