Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine

A variable-gain higher-order sliding mode pitch control strategy is proposed for a strongly nonlinear and coupled floating offshore wind power system. The main goal of the proposed strategy is to suppress platform motion caused by random disturbances such as waves and wind speed and to reduce fatigu...

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Autores principales:	Shuzhen Li, Yaozhen Han, Weigang Pan, Shuang Liu, Mingdong Hou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	floating offshore wind turbine load mitigation power regulation Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
Acceso en línea:	https://doaj.org/article/962daf302a3c4d3ead3f2baed02457df
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spelling	oai:doaj.org-article:962daf302a3c4d3ead3f2baed02457df2021-11-25T18:03:53ZVariable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine10.3390/jmse91111722077-1312https://doaj.org/article/962daf302a3c4d3ead3f2baed02457df2021-10-01T00:00:00Zhttps://www.mdpi.com/2077-1312/9/11/1172https://doaj.org/toc/2077-1312A variable-gain higher-order sliding mode pitch control strategy is proposed for a strongly nonlinear and coupled floating offshore wind power system. The main goal of the proposed strategy is to suppress platform motion caused by random disturbances such as waves and wind speed and to reduce fatigue loads and power fluctuations. Feedback control and super-twisting second-order sliding mode algorithm were adopted to carry out collective pitch control and track the rated rotor speed, which involves the factor of platform pitch. To adaptively adjust the collective pitch control parameters according to random wave and wind speed disturbances, the barrier function method was used to conceive adaptive sliding mode control gains. For comparison purposes, the proposed control strategy and PI control were executed under different wind and wave conditions on a FAST and MATLAB/Simulink platform. Furthermore, the fatigue load was calculated by Mlife. The results demonstrate that the proposed scheme is effective and robust. Moreover, it has advantages in resisting external disturbances, especially in suppressing the platform pitch and roll, as well as reducing the power fluctuations and the fatigue load on the blade root.Shuzhen LiYaozhen HanWeigang PanShuang LiuMingdong HouMDPI AGarticlefloating offshore wind turbineload mitigationpower regulationNaval architecture. Shipbuilding. Marine engineeringVM1-989OceanographyGC1-1581ENJournal of Marine Science and Engineering, Vol 9, Iss 1172, p 1172 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	floating offshore wind turbine load mitigation power regulation Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581
spellingShingle	floating offshore wind turbine load mitigation power regulation Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Shuzhen Li Yaozhen Han Weigang Pan Shuang Liu Mingdong Hou Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine
description	A variable-gain higher-order sliding mode pitch control strategy is proposed for a strongly nonlinear and coupled floating offshore wind power system. The main goal of the proposed strategy is to suppress platform motion caused by random disturbances such as waves and wind speed and to reduce fatigue loads and power fluctuations. Feedback control and super-twisting second-order sliding mode algorithm were adopted to carry out collective pitch control and track the rated rotor speed, which involves the factor of platform pitch. To adaptively adjust the collective pitch control parameters according to random wave and wind speed disturbances, the barrier function method was used to conceive adaptive sliding mode control gains. For comparison purposes, the proposed control strategy and PI control were executed under different wind and wave conditions on a FAST and MATLAB/Simulink platform. Furthermore, the fatigue load was calculated by Mlife. The results demonstrate that the proposed scheme is effective and robust. Moreover, it has advantages in resisting external disturbances, especially in suppressing the platform pitch and roll, as well as reducing the power fluctuations and the fatigue load on the blade root.
format	article
author	Shuzhen Li Yaozhen Han Weigang Pan Shuang Liu Mingdong Hou
author_facet	Shuzhen Li Yaozhen Han Weigang Pan Shuang Liu Mingdong Hou
author_sort	Shuzhen Li
title	Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine
title_short	Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine
title_full	Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine
title_fullStr	Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine
title_full_unstemmed	Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine
title_sort	variable-gain higher-order sliding mode pitch control of floating offshore wind turbine
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/962daf302a3c4d3ead3f2baed02457df
work_keys_str_mv	AT shuzhenli variablegainhigherorderslidingmodepitchcontroloffloatingoffshorewindturbine AT yaozhenhan variablegainhigherorderslidingmodepitchcontroloffloatingoffshorewindturbine AT weigangpan variablegainhigherorderslidingmodepitchcontroloffloatingoffshorewindturbine AT shuangliu variablegainhigherorderslidingmodepitchcontroloffloatingoffshorewindturbine AT mingdonghou variablegainhigherorderslidingmodepitchcontroloffloatingoffshorewindturbine
_version_	1718411695340126208

Variable-Gain Higher-Order Sliding Mode Pitch Control of Floating Offshore Wind Turbine

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