Full-System Linearization for Floating Offshore Wind Turbines in OpenFAST

Jason M. Jonkman; Alan D. Wright; Greg J. Hayman; Amy N. Robertson

doi:10.1115/IOWTC2018-1025

Full-System Linearization for Floating Offshore Wind Turbines in OpenFAST

Jason M. Jonkman, Alan D. Wright, Greg J. Hayman, Amy N. Robertson

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

33 Scopus Citations

Abstract

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.

Original language	American English
Number of pages	10
DOIs	https://doi.org/10.1115/IOWTC2018-1025 https://doi.org/10.1115/IOWTC2018-1025
State	Published - 2018
Event	ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018 - San Francisco, United States Duration: 4 Nov 2018 → 7 Nov 2018

Conference

Conference	ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018
Country/Territory	United States
City	San Francisco
Period	4/11/18 → 7/11/18

Bibliographical note

See NREL/CP-5000-71865 for preprint

NREL Publication Number

NREL/CP-5000-73112

Keywords

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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title = "Full-System Linearization for Floating Offshore Wind Turbines in OpenFAST",

abstract = "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.",

keywords = "floating offshore wind turbine (FOWT), linearization, OpenFAST, state-space-based wave excitation, state-space-based wave radiation",

author = "Jonkman, {Jason M.} and Wright, {Alan D.} and Hayman, {Greg J.} and Robertson, {Amy N.}",

note = "See NREL/CP-5000-71865 for preprint; ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018 ; Conference date: 04-11-2018 Through 07-11-2018",

year = "2018",

doi = "10.1115/IOWTC2018-1025",

language = "American English",

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T1 - Full-System Linearization for Floating Offshore Wind Turbines in OpenFAST

AU - Jonkman, Jason M.

AU - Wright, Alan D.

AU - Hayman, Greg J.

AU - Robertson, Amy N.

N1 - See NREL/CP-5000-71865 for preprint

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

KW - floating offshore wind turbine (FOWT)

KW - linearization

KW - OpenFAST

KW - state-space-based wave excitation

KW - state-space-based wave radiation

UR - http://www.scopus.com/inward/record.url?scp=85059298459&partnerID=8YFLogxK

U2 - 10.1115/IOWTC2018-1025

DO - 10.1115/IOWTC2018-1025

M3 - Paper

AN - SCOPUS:85059298459

T2 - ASME 2018 1st International Offshore Wind Technical Conference, IOWTC 2018

Y2 - 4 November 2018 through 7 November 2018

ER -

Full-System Linearization for Floating Offshore Wind Turbines in OpenFAST

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

Access to Document

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