有效的现场风资源评估

有效的现场风资源评估（WRA）用于海上风开发

主流可再生能源如何通过现场Windcube测量进行更准确的海上WRA活动，以实现亚洲风电场开发的未来

Global pure-play renewable energy company, Mainstream Renewable Power, partnered with the Phu Cuong Group to develop one of Asia’s largest offshore wind farms: the 1,400 megawatt (MW) Phu Cuong Soc Trang project.

1A和1B阶段分别为200MW，第2阶段为1,000MW。1A期预计将在2023年投入运营，其中将包括距离海岸约4公里的大约50个风力涡轮机。完整的风电场将为近100万户主提供动力，并避免每年的TCO2E（直接运营和电力的排放量结合）。

This flagship project marks the first offshore wind development for Mainstream in the Asia Pacific region. Vietnam has an extensive coastal region and ideal wind conditions, offering enormous potential for offshore wind energy.

The challenge: Confirm wind speeds with on-site measurements

通过WRA活动证明风能的可用性和特征对于确保项目可行性和投资回报率至关重要。该项目开始时，已经有一个8200万陆地大都会桅杆。但是，该区域的独特条件和陆上MET桅杆的局限性需要现场测量。

在测量活动的设计期间，考虑了几种测量选项。排除了一个海上桅杆，因为它将涉及广泛且耗时的许可证，高昂的建筑成本以及在这种情况下是国际承包商。

The solution: Verifiable WRA with offshore lidar

基于其在Leosphere，Vaisala公司，LiDAR设备的丰富经验，主流设备集成了两个Windcube®垂直分析LIDARS，专门为其在苛刻的近海环境中具有可靠的可靠性和准确性而选择。幸运的是，该组织已经在另一个位置有一个WindCube，可立即使用。

验证近距离桅杆旁边后，团队迅速在距离岸边约4公里的固定离岸平台上安装了第一个Windcube。验证是在测量活动开始之前的重要一步。霍曼说：“对我们来说，很高兴看到激光雷达在放置现场并相信它是可存储的情况下按照您打算运行的。您想做的就是说服您的顾问，数据确实可以存储。”

In September 2020, the second WindCube was installed on another offshore platform 17km from the first one. The fixed locations ensure consistent placement and data collection regardless of tidal conditions. Fixed lidar installations also allow easy and quick access to the lidar if needed.

In addition to the importance of validation, Homann sees the lidar validation step proving consistency and reliability enough that eventually it likely won’t be needed. "So, one of the main things now is to validate it against a met mast, and we do that for all projects for which we deploy lidars at the moment. But there is definitely a shift in the industry so hopefully one day we can deploy them without met mast validation."

The benefits: Dependable on-site wind data for proving bankability

With both WindCube lidars in place, Mainstream is getting exactly what it needs to prove bankability and get to the next step in developing the Phu Cuong Soc Trang wind farm. The lidar provides the WRA data needed to validate the expected wind speeds. As Homann puts it, "That’s the purpose of our lidars, and we also get that across various heights. The shear profile is also something we can better capture with the lidar offshore."

The advantages WindCube lidar provides would have been very time-consuming and expensive to replicate using an offshore met mast. Not only did Mainstream avoid a lengthy and expensive permitting and installation process, but it was able to quickly train two local contractors in Vietnam to provide support. Local support is especially valuable in saving time and costs and will be an asset to Mainstream as it expands development in the region.

现场检查期间的安全是另一个优势。Windcube位于一个高于平均海平面的5m平台上，与80-100m的海上MET MET MAST相比，对高度工作的技术人员的风险要小得多。

主流对Windcube激光雷达的统计，以减少不确定性和消除偏见。“我的期望（带着激增）是您的风流，水平外推不确定性应减少；您的剪切不确定性绝对应该减少。这有两个部分：第一个是减少不确定性，但它们[LIDARS [LIDARS]]还排除了任何形式的偏见[在LiDAR测量位置]。”

Phase 1 is currently undergoing third- party assessment, and Mainstream will discuss the results with an independent consultant before closing, but is excited to start Phase 2 measurements. "I am happy that we have got at least one year [of measurements] for each of the platforms because it gives us a good base and eliminates the seasonality effect, so your long-term assessments have slightly lower uncertainties because of that," Homann said.

当然，一旦该项目完成，便携式WindCube系统将帮助主流有效地扩展整个地区的风电场。重新利用激光雷达并部署它以支持新活动的能力使得随着时间的推移成本节省更大。在越南，清洁能源和可持续性的未来看起来很光明。