ABSTRACT

The study presents an investigation of Waves4Power’s WaveEL 3.0 wave energy converter (WEC). It was used as a reference for full-scale measurements of the mooring forces and buoy motions in a measurement campaign 2017 at an installation location off the coast of Runde in Norway. A numerical simulation model of the installation was developed in the DNV GL software SESAM. Unfortunately, the sea state conditions were not measured during the measurement campaign. Hence, a methodology was developed that used the recorded motion data to compute the sea state conditions at the test site. The simulated WEC motions based on the computed sea states agreed very well with the measured WEC motions. The measured and simulated mooring forces were compared under various environmental conditions. 3-hour sea state realizations are typically preferred in numerical simulations. However, influences from the tide at the test site showed that sea states were normally stationary for only 1–2 h. The measured and simulated average mooring forces agreed very well during 1-hour periods, whereas the simulations overestimated the mooring forces in 3-hour periods because of the tide.

摘要

这项研究提出了对Waves4Power的WaveEL 3.0波能转换器（WEC）的研究。在挪威Runde海岸附近的安装地点的2017年测量活动中，它被用作对系泊力和浮标运动进行全面测量的参考。在DNV GL软件SESAM中开发了设备的数值模拟模型。不幸的是，在测量活动中未测量海况。因此，开发了一种方法，该方法使用记录的运动数据来计算测试地点的海况。基于计算的海况的模拟WEC运动与测得的WEC运动非常吻合。在各种环境条件下比较了测得的和模拟的系泊力。在数值模拟中，通常首选3小时的海况实现。但是，测试现场的潮汐影响表明，海况通常仅停留1-2小时。在1个小时内，实测和模拟的平均系泊力非常吻合，而由于潮汐，模拟结果高估了3个小时内的系泊力。