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

Research output: Contribution to conferencePaperpeer-review

15 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 languageAmerican English
Pages3070-3075
Number of pages6
DOIs
StatePublished - 28 Jul 2015
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: 1 Jul 20153 Jul 2015

Conference

Conference2015 American Control Conference, ACC 2015
Country/TerritoryUnited States
CityChicago
Period1/07/153/07/15

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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