Gain Scheduling H₂/H_∞ Structural Control of a Floating Wind Turbine

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• 作者：Yulin Si ^{yulin.si@uia.no" class="auth_mail" title="E-mail the corresponding author} ; Hamid Reza Karimi ^{hamid.r.karimi@uia.no" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Floating wind turbine ; dynamic modelling ; structural control ; hybrid mass damper (HMD) ; H2/H&infin ; control design ; gain scheduling ; linear matrix inequality (LMI)
• 刊名：IFAC-PapersOnLine
• 出版年：2014
• 出版时间：2014
• 年：2014
• 卷：47
• 期：3
• 页码：6788-6793
• 全文大小：882 K

文摘

For wind turbine load mitigation, this paper proposes an active structural control deign of a hybrid mass damper installed at the tower top of a spar-type floating wind turbine. System dynamic model is established based on first principles and the polynomial curve fitting approach, while different steady-state points are derived. Then, a gain scheduling H₂/H_∞ state feedback controller is designed by solving linear matrix inequalities, which aims to reduce the loading. At last, nonlinear simulations are performed under different wind and wave conditions, and the results demonstrate that more load reduction could be achieved at the expense of more energy consumption in mass damper actuator.