Preprints
https://doi.org/10.5194/wes-2021-73
https://doi.org/10.5194/wes-2021-73

  26 Jul 2021

26 Jul 2021

Review status: this preprint is currently under review for the journal WES.

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

Jason M. Jonkman, Emmanuel S. P. Branlard, and John P. Jasa Jason M. Jonkman et al.
  • National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA

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, e.g., eigenanalysis (to derive structural natural frequencies, damping ratios, and mode shapes) and controls design (based on linear state-space models). In controls co-design (CCD), whose 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 (mass, stiffness, geometry, etc.) on the linearized system using OpenFAST.

Jason M. Jonkman et al.

Status: open (until 08 Nov 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2021-73', Anonymous Referee #1, 23 Aug 2021 reply

Jason M. Jonkman et al.

Jason M. Jonkman et al.

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Short summary
In controls co-design, whose methods often rely on linearized models of the physics, the physical structure 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 (mass, stiffness, geometry, etc.) on the linearized system.