Influence of Wind Turbine Design Parameters on Linearized Physics-Based Models in OpenFAST

Jason Jonkman, Emmanuel Branlard, John Jasa

Research output: Contribution to journalArticlepeer-review

7 Scopus Citations

Abstract

While most physics involved in wind energy are nonlinear, linearization of the underlying nonlinear wind system equations is often important for understanding the system response and exploiting well-established methods and tools for analyzing linear systems. Linearized models are important for eigenanalysis (to derive structural natural frequencies, damping ratios, and mode shapes), controls design (based on linear state-space models), etc. In controls co-design, wherein methods often rely on linearized time-domain models of the physics, the physical structure (often called the plant) and controller are designed and optimized concurrently, so it is important to understand how changes to the physical design affect the linearized system. This work summarizes efforts done to understand the impact of design parameter variations in the physical system (e.g., mass, stiffness, geometry, and aerodynamic and hydrodynamic coefficients) on the linearized system using OpenFAST.

Original languageAmerican English
Pages (from-to)559-571
Number of pages13
JournalWind Energy Science
Volume7
Issue number2
DOIs
StatePublished - 2022

Bibliographical note

See NREL/JA-5000-81481 for for article as published in Wind Energy Science Discussions

NREL Publication Number

  • NREL/JA-5000-82662

Keywords

  • controls co-design
  • design parameters
  • design variables
  • linearization
  • OpenFAST
  • wind turbine

Fingerprint

Dive into the research topics of 'Influence of Wind Turbine Design Parameters on Linearized Physics-Based Models in OpenFAST'. Together they form a unique fingerprint.

Cite this