Dynamics and control of air turbines in oscillating-water-column wave energy converters: Analyses and case study
Dynamics and control of air turbines in oscillating-water-column wave energy converters: Analyses and case study
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DOI：
10.1016/j.rser.2019.05.010
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发表时间：
2019-09-01
影响因子：
15.9
通讯作者：
Falcao, A. F. O.
中科院分区：
文献类型：
--
作者：
Henriques, J. C. C.;Portillo, J. C. C.;Falcao, A. F. O.
本文提出了一个详细的分析动力学和控制的空气涡轮机和发电机在蒸发水柱（OWC）。其目的是解释基于每个系统组件的物理行为的OWC设备的性能。选择穆特里库波浪发电厂作为测试案例。该发电厂是位于西班牙巴斯克地区比斯开湾的防波堤。本论文的主要贡献是：（1）建立了频域中的发电厂流体动力学模型;（2）实现了非线性时域波-线模型;（3）实现了用于计算波辐射力的Prony方法;（4）根据实验数据建立了详细的发电机模型，以评估发电机效率对动力输出性能的影响; v）威尔斯和双径向涡轮机的临界性能比较; vi）涡轮机/发电机组的控制参数的灵敏度分析;以及vii）基于统计数据的两种涡轮机的比较性能的解释。涡轮机的性能曲线取自开发人员公布的实验数据。这些结果是通过穆特里库试验场外波浪气候的简化模型获得的，该试验场包括14个海况。
The paper presents a detailed analysis of the dynamics and control of air turbines and electrical generators in oscillating-water-columns (OWCs). The aim is to explain the performance of an OWC device based on the physical behaviour of each system component. The Mutriku wave power plant was chosen as the test case. The power plant is a breakwater located in the Bay of Biscay, in Basque Country, Spain. The contributions of the work are: i) development of a hydrodynamic model of the power plant in the frequency domain; ii) implementation of a non-linear time-domain wave-to-wire model; iii) real-valued implementation of the Prony method for the computation of the wave-radiation force; iv) a detailed generator model based on experimental data to assess the influence of the generator efficiency on the power take-off performance; v) a critical performance comparison of the Wells and biradial turbines; vi) a sensitivity analysis of the control parameters of the turbine/generator set; and vii) an explanation of the comparative performance of both turbines based on statistical data. The turbine performance curves were taken from developers' published experimental data. The results were obtained with a simplified model of the wave climate off the Mutriku test site comprising 14 sea states.