Subspace identification of a 5 MW reference wind turbine


Conference Paper

© The Society for Experimental Mechanics, Inc. 2015. Nonlinear systems, a category into which essentially all real-world engineering systems fall, are challenging in their design, response prediction, and control. Simulating their dynamic response requires numerical solvers, and the use of frequency-domain techniques is prohibited, which eliminates many commonly used engineering techniques. Subspace identification is a convenient method to approximate a complex, nonlinear system with a linear model, significantly enhancing simulation time and allowing the use of traditional control schemes. This paper investigates the utility of subspace identification for the National Renewable Energy Laboratory (NREL) 5 MW reference model, which runs on their open-source wind turbine simulator, FAST. The ability of the identified model to predict a variety of outputs is compared. The linear models found with subspace identification are used to create a simple gain-scheduled controller, and its performance is compared with the standard NREL 5 MW controller.

Full Text

Duke Authors

Cited Authors

  • Rinker, JM; Gavin, HP

Published Date

  • January 1, 2015

Published In

Volume / Issue

  • 10 /

Start / End Page

  • 23 - 29

Electronic International Standard Serial Number (EISSN)

  • 2191-5652

International Standard Serial Number (ISSN)

  • 2191-5644

International Standard Book Number 13 (ISBN-13)

  • 9783319152509

Digital Object Identifier (DOI)

  • 10.1007/978-3-319-15251-6_3

Citation Source

  • Scopus