Dynamic modeling and load calculation method based on offshore semi-submersible fan

Dynamic modeling and load calculation method based on offshore semi-submersible fan

The invention discloses a dynamic modeling and load calculation method for an offshore semi-submersible wind turbine, which is characterized in that when the semi-submersible wind turbine stably operates in deep sea, the semi-submersible wind turbine is subjected to the action of wind wave load, a s...

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Hauptverfasser: YUAN JIAWANG, ZHANG HUAYU, HE SHAN, DONG CHANGCHENG
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator YUAN JIAWANG
ZHANG HUAYU
HE SHAN
DONG CHANGCHENG
description The invention discloses a dynamic modeling and load calculation method for an offshore semi-submersible wind turbine, which is characterized in that when the semi-submersible wind turbine stably operates in deep sea, the semi-submersible wind turbine is subjected to the action of wind wave load, a semi-submersible platform is subjected to the tension of an anchor chain, and the wind turbine is also provided with a variable-pitch control system; in order to research the load change condition of the semi-submersible fan in the variable pitch process, firstly, a kinetic equation of the semi-submersible fan is established, damping and rigidity coefficients are considered, the damping of the semi-submersible fan is expressed as a nonlinear mode due to the fact that the damping of a floating fan is too complex, and the rigidity coefficient of the semi-submersible fan is considered; and identifying the rigidity and the damping coefficient of the semi-submersible fan by using a system identification method, namely an
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Dynamic modeling and load calculation method based on offshore semi-submersible fan
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