Full-System Linearization for Floating Offshore Wind Turbines in OpenFAST

Conference · Wed Nov 07 00:00:00 EST 2018

DOI:https://doi.org/10.1115/IOWTC2018-1025· OSTI ID:1491436

Jonkman, Jason  ^[1]; Wright, Alan D ^[1]; Hayman, Gregory ^[1]; Robertson, Amy N ^[1]

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1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)

The wind engineering community relies on multiphysics engineering software to run nonlinear time-domain simulations (e.g., for design-standards-based loads analysis). Although most physics involved in wind energy are nonlinear, linearization of the underlying nonlinear system equations is often advantageous to understand the system properties and exploit well-established methods and tools for analyzing linear systems. This paper presents the development of the new linearization functionality of the open-source engineering tool OpenFAST for floating offshore wind turbines, as well as the concepts and mathematical background needed to understand and apply it.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1491436
• Report Number(s): NREL/CP-5000-73112
• Resource Relation: Conference: Presented at the ASME 2018 1st International Offshore Wind Technical Conference, 4-7 November 2018, San Francisco, California
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
OpenFAST
floating offshore wind turbine (FOWT)
linearization
state-space-based wave excitation
state-space-based wave radiation