Dynamic Modeling of Flow Induced Vibration Power-Plants
Dynamic Modeling of Flow Induced Vibration Power-Plants
复制标题
流激振动发电厂的动态建模
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
J. Ioup
中科院分区：
文献类型：
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作者：
N. Xiros;M. Bernitsas;Hai Sun;R. Saxton;J. Ioup
基于密歇根大学海洋可再生能源实验室 (MRELab) 的实验数据，开发了一个数据模型，以便对基于涡激振动 (VIV) 的发电和能源生产发电厂进行动态分析和控制器综合。对于 MRELab 使用的特定实验设置，通过使用一到两个圆柱体作为错流中的钝体来记录各种运动学、动态和能量变量的数据系列。在本研究中，对这些数据系列进行分析，以便在适当的相空间中生成动力学模型。模型推导的过程完全是数据驱动的，因为自由度或状态变量的数量反映了过程的相空间的维度。其结果是一个模型，允许识别依赖于状态的特征，例如吸引子、吸引盆、分离等，这些特征可能出现在基本系统动力学中。
Based on experimental data from the Marine Renewable Energy Laboratory (MRELab) at the University of Michigan, a data model is developed in order to permit dynamical analysis and controller synthesis for power-plants based on Vortex Induced Vibrations (VIV) for power generation and energy production. For the particular experimental settings used at the MRELab, data series of various kinematic, dynamic and energetic variables were recorded through the use of one to two cylinders as bluff bodies in a cross-flow. In the present research, these data series are analyzed in order to produce a dynamical model in an appropriate phase space. The process of model derivation is entirely data-driven in the sense that the number of degrees of freedom, or state variables, reflects the dimension of the phase space for the process. The outcome is a model which allows the identification of regime-dependent features such as attractors, basins of attraction, separatrices, etc., which can occur in the basic system dynamics.