Abstract In this study, we devised a new WEC (wave energy converter) called SR-WEC (Surface Riding WEC). The SR-WEC consists of two bodies: the outer cylinder with an armature assembly (body #1) and a magnet assembly (body #2) sliding inside the armature. For the SR-WEC, the relative sliding displacement and velocity are caused by gravity acceleration and the outer cylinder's motions, and they lead to electrical power generation. To evaluate its performance, a numerical simulation tool was developed, which solves the fully-coupled floater-mooring-generator dynamics. During the developing stage, the appropriate hydrodynamics model, sliding mechanics model, mooring dynamics model, and LEG (linear electric generator) electro-magnetic model were independently developed and then fully coupled in time domain to account for the cross-coupling interactions among them. Then, the developed simulation tool was verified component by component against various laboratory tests. Subsequently, systematic parametric studies were conducted with several important design parameters under various wave conditions to enhance power generation. After that, the average output power was evaluated in enlarged operational wave conditions. The present SR-WEC is particularly designed to be efficient at low sea states, which is good since they cover the majority of typical annual sea states.

中文翻译：

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带线性发电机的表面乘波换能器的性能评价

摘要 在这项研究中，我们设计了一种新的 WEC（波浪能转换器），称为 SR-WEC（Surface Riding WEC）。SR-WEC 由两个主体组成：带有电枢组件（主体 #1）的外圆柱体和在电枢内滑动的磁铁组件（主体 #2）。对于 SR-WEC，相对滑动位移和速度是由重力加速度和外圆柱体的运动引起的，它们导致发电。为了评估其性能，开发了一种数值模拟工具，该工具解决了完全耦合的浮子-系泊-发电机动力学问题。在开发阶段，适当的流体动力学模型、滑动力学模型、系泊动力学模型、和 LEG（线性发电机）电磁模型是独立开发的，然后在时域中完全耦合，以解决它们之间的交叉耦合相互作用。然后，根据各种实验室测试逐个组件验证开发的模拟工具。随后，在各种波浪条件下对几个重要的设计参数进行了系统的参数研究，以提高发电量。之后，在扩大的操作波条件下评估平均输出功率。目前的 SR-WEC 专门设计为在低海况下有效，这很好，因为它们涵盖了大多数典型的年度海况。在各种波浪条件下对几个重要的设计参数进行了系统的参数研究，以提高发电量。之后，在扩大的操作波条件下评估平均输出功率。目前的 SR-WEC 专门设计为在低海况下有效，这很好，因为它们涵盖了大多数典型的年度海况。在各种波浪条件下对几个重要的设计参数进行了系统的参数研究，以提高发电量。之后，在扩大的操作波条件下评估平均输出功率。目前的 SR-WEC 专门设计为在低海况下有效，这很好，因为它们涵盖了大多数典型的年度海况。