04 顾佥 风电MR认证与测试方案-WWEC-1201.pdf

1、诚 信进 取创 新协 同Reliability and Mutuality Certification for Wind TurbinesCONTENTS目目录录近期国内风电机组失效概况Overview of WT failures in Recent Years.1 12 23 3批量失效增加的深层次原因探究Why are batched failures increasing?4 4新的认证解决方案A solution with new certification methods.强化测试能力More powerful testing capacity.Overview of WT Fai

2、lures in Recent Years影响失效出现概率的因素复杂多样，从总趋势来看，事故出现的比例在近年持续增高。The affecting factors of failure are complex and diverse.As a general trend,the proportion of failures has been increasing continuously in recent years.风电机组重大事故可以分为以下四种：机组倒塔、机组着火、关键部件失效和人员伤害（触电、坠落等）；Falldown,fire,main-component failure and p

3、ersonal injury accidents are considered as Serious Failures.关键部件失效占比最大，达到68%，其中关键部件失效又包括叶片、螺栓、塔架、传动链（齿轮箱加主轴承）、发电机等；Main-component failure occupies 68%of serious failures.WT main component refers to blades,tower,mainbearing,gearbox,generator,etc.风电机组关键部件失效占比中叶片失效占半数。Blade failure takes half of main-c

4、omponent failure.着火Fire6%其他Others11%倒塔Fall down15%关键部件失效Main-component failure68%2013-2024 年中国风电事故及失效类型占比The occupation of WT failure in China.叶片 Blade,50%塔架 Tower,10%叶根螺栓blade bolts,9%齿轮箱gearbox,7%其他 Others,6%基础Foundation,6%发电机Generator,5%主轴承 Main bearing,3%偏航 Yaw,2%塔架螺栓,2%Why are batched failures

5、increasing?产能急速扩充质量管控不严Rapidly growth of product capacity,lack of quality control.大型化技术突进认知不足New designs of large WT,lack of experience.开发周期缩短验证不够Short development terms,lack of validation.失效增加Failure increases叶片变长、变细、变柔Blades are becoming longer,thinner and softer完整的型式认证（TCA）增长趋势平稳，但未完成认证的机型在近年明显增加

6、，尤其是连设计阶段都未完成的PPT机型增多。说明整机厂在市场竞争中不断缩短新机型的研发周期，并且频繁更改投标机型。The growth trend of complete type certification(TCA)is stable,but the number of types which were broken off from certification has increased significantly in recent years,especially the PPT type that even can not pass design evaluation.This in