巴西将扩大海上风能产业发展

中国石化新闻网讯 据1月6日Global Energy 报道，由巴西圣保罗大学理工学院（EPUSP）海军与海洋工程系的Alexandre Simos教授主导, 海军研究办公室(ONR)提供资金的全球技术解决方案项目,该项目组研究人员正在寻求新的浮式海上风力涡轮机(FOWT)设计方案，以减轻结构重量，增加风力发电容量。

浮式海上风力涡轮机具有的优点之一是可以获得恒定的风速，使涡轮以最佳效率运转。而缺点是安装成本高，系泊缆和传输能量所需的电缆长度大。在这种情况下，减轻浮式装置的结构重量非常重要。

由于波浪、海流和风荷载的响应、静、动态稳定性以及系泊缆的结构特性等变量的影响，系泊缆的设计是一项复杂的工作。因此，有几个研究项目旨在开发数值计算代码，并为FOWTs的实验基准奠定基础。

虽然浮式海上风力涡轮机将为海上基地提供替代能源，但圣保罗ONR保罗·孙达拉姆(Paul Sundaram)指出：“我们的目标是通过建模来了解如何在动态海洋环境中设计和管理复杂结构。这对于在海上设计和建造工程化的弹性系统非常重要”。

这项技术将在巴西未来的风能扩张中扮演重要角色。巴西国会已经讨论了近海风力发电场的安装规定，该行业正在为新的发展做准备。该行业具有巨大的潜力，尤其是在巴西东北部沿海地区。

洪伟立 摘译自 Global Energy

原文如下：

Brazil looks to expand its offshore wind sector

Led by Professor Alexandre Simos of the Department of Naval and Ocean Engineering at the Polytechnic School of the University of Sao Paulo (EPUSP) in Brazil, and thanks to funding provided by the Office of Naval Research Global (ONR Global), a group of researchers are finding ways to increase the country's wind power generation capacity by leading an effort to reduce the structural weight in new designs of Floating Offshore Wind Turbines (FOWTs).

FOWTs have many opportunities and obstacles. Among the advantages is the availability of constant wind at a suitable speed for the use of turbines at their optimum efficiency. Among the disadvantages are the high costs of installation, mooring lines and the large length of cables required for energy transmission. In this context, saving structural weight on the floater is important.

The design of FOWTs can be a complicated task as variables such as the responses to waves, current and wind loads, the static and dynamic stabilities, and the structural behaviour of the mooring lines should be considered. Therefore, there have been several research projects aimed at developing numerical codes and laying the grounds for the experimental benchmarking of FOWTs.

While floating offshore wind turbines will provide an alternative energy source for seabasing, Paul Sundaram, Science Director of ONR Global in Sao Paulo, has noted that "the goal was to understand through modelling how to design and manage complex structures in the dynamic ocean environment. This is very important for the US Navy, to design and build engineered resilient systems in the ocean".

Technology will play a major role in the future expansion of wind energy in Brazil. Regulation for the installation of offshore wind farms has already been discussed in the Brazilian Congress, and the industry is preparing for new developments in the sector, which has a huge potential, especially on the country's northeast coast.