新华社北京7月27日电（记者 王敏）记者27日从中国船舶重工集团公司获悉，由该集团自主研制的5兆瓦海上风电机组样机在重庆海装风电总装生产基地成功下线。该风力发电机拥有完全自主知识产权，结束了此前我国主要依赖引进技术的历史。据了解，该机组是目前同类机型中“风轮直径最大、机头重量最轻、发电量最高”的机组。下线后将运往江苏如东黄海风场安装，于年内实现并网发电。

    Beijing, July 27-（Reporter ma）Reporter 27 from China shipbuilding group company to learn，By this group of independent research 5 mw sea wind generator in chongqing sea wind power pack prototype assembly production base success referrals。The wind generator has completely independent intellectual property rights，After the end of our country mainly depends on the history of the imported technology。According to understand，The unit is the similar type“Rotor diameter biggest、With the light weight、Capacity of the highest”Crew to the。After referrals will be sent HuangHaiFeng field some jiangsu installation，In years to achieve grid generation。

    据了解，本次下线的5兆瓦海上风电机组是科技部唯一授权的科技支撑计划。项目实施以来，中船重工充分发挥自身优势，依托国家海上风电工程技术研究中心平台建设，历时3年技术攻关，先后在传动系统、控制系统、海洋腐蚀等关键技术领域取得了重大突破，拥有了32项国家专利技术，形成了全产业链格局，从叶片、齿轮箱、发电机、控制系统到轮毂、塔筒、润滑系统等关键重要零部件均由集团成员单位完成。尤其在整机设计中推行“标准化、系列化、模块化”设计，该机型除叶片外，各种规格零部件可完全互换，大大减少了原材料浪费，降低了生产成本。

    According to understand，The five megawatt offshore referrals wind generator is the only authorized and technology support of the ministry of science and technology plan。Project since the implementation of，The Chinese heavy industry give full play to its own advantage，Relying on national maritime wind engineering technology research center platform construction，After 3 years technology research，Successively in transmission system、Control system、Marine corrosive key techniques such as the field has made a great breakthrough，Have 32 countries patent technology，Form the whole industry chain pattern，From leaves、Gear box、generator、Control system to the wheel、Tower drum、Lubrication system, and other key parts are all important by the group member unit completed。Especially in the machine design implementation“standardization、series、modular”design，The machine except the blade，Various kinds of specification parts can be completely interchangeable，Greatly reducing the waste materials，Reduce the cost of production。

    新研制的5兆瓦风力发电机组是三叶片、上风向、水平轴、电气变桨、并网型海上风电发电机组，采用整体式铸造机架，大轴承+齿轮箱增速，高速永磁发电机+全功率变流器，机舱全密封结构+内部空空冷循环系统，其机头结构紧凑，重量较同级别风电机组轻15%，是目前全球同级别中最轻的，这将大大提升风机运行效率。

    The new developed 5 mw wind power generators are three blades、On the direction of the wind、Horizontal axis、Electrical variable propeller、Offshore wind power generator grid type，Adopt and casting frame，Big bearing + gear box growth，The permanent magnetism generators + the whole power converter，The whole sealing structure + internal empty circulatory system cold，Its head compact structure，Weight is light wind generator with the level of 15%，Is the world with the level of the light，This will greatly improve the efficiency of the fan operation。

    该机型叶片长度为75米，风轮直径可达154米，是目前同类产品最大的尺寸，扫风面积也实现了最大，适用于III类风区，范围涵盖目前90%以上的风电场，极大提高风资源的利用效率和发电量。

    The models for 75 meters blade length，The rotor diameter is 154 meters，Is similar products maximum size，And the wind area for maximum，Apply to class III wind area，Covers more than 90% of the current wind farms，Great improve efficiency of resource utilization and the wind turbine。