论文标题
浮动海上风力涡轮机（FOWT）的阻尼分析：一种新的控制策略，降低了平台振动
Damping analysis of Floating Offshore Wind Turbine (FOWT): a new control strategy reducing the platform vibrations
论文作者
论文摘要
在本文中，分析了浮动平台和WTG转子的耦合动力学。特别是，阻尼是从转子和浮动平台的耦合方程明确得出的。对阻尼的分析导致对不稳定性现象的研究，并得出了导致非最小相零（NMPZ）的明确条件。分析了两个与转子动力学有关的NMPZ，另一个与平台俯仰动力学有关。后者是一种新颖性，在这项工作中进行了分析，为其验证提供了明确条件的社区。平台的不稳定性域明确源自方程式耦合系统。在本文的第二部分中，通过对浮动平台阻尼的分析，提出了一种控制禽的新策略。这种策略使人们可以在平台俯仰运动中向控制器强加明显的阻尼水平，而不会更改平台投球周期。最后，通过对UMAINE IEA15MW FOWT进行Aero-Hydro-Servo弹性数值模拟，将新策略与没有补偿的新策略进行了比较。比较了产生的功率，动力，刀片螺距和塔基底疲劳，表明新的控制策略可以减少结构中的疲劳而不会影响动力产生。
In this paper, the coupled dynamics of the floating platform and the WTG rotor is analysed. In particular, the damping is explicitly derived from the coupled equations of rotor and floating platform. The analysis of the damping leads to the study of the instability phenomena and it derives the explicit conditions that lead to the Non Minimum Phase Zero (NMPZ). Two NMPZs, one related to the rotor dynamics and the other one to the platform pitch dynamics, are analysed. The latter is a novelty and it is analysed in this work, providing the community of an explicit condition for its verification. The domain of the instability of the platform is explicitly derived from the coupled system of equations. In the second part of the paper, from the analysis of the damping of the floating platform, a new strategy for the control of FOWTs is proposed. This strategy allows one to impose to the controller an explicit level of damping in the platform pitch motion without changing the period of platform pitching. Finally the new strategy is compared to the one without compensation by performing aero-hydro-servo-elastic numerical simulations of the UMaine IEA15MW FOWT. Generated power, movements, blade pitch and tower base fatigue are compared showing that the new control strategy can reduce fatigue in the structure without affecting the power production.
