茂名职业技术学院
毕 业 设 计
系别： 机电信息系
专业： 机械制造与自动化
班别： 13机械一班
姓名： 何进生
指导老师： 张浩川
日期： 2015年7月1日至2016年5月1日
内 容 摘 要
随着全球经济的发展和人口的增长，人类正面临着能源利用和环境保护两方面的压力，能源问题和环境污染日益突出。风能作为一种蕴藏量丰富的自然资源，因其使用便捷、可再生、成本低、无污染等特点，在世界范围内得到了较为广泛的使用和迅速发展。风力发电己成为世界各国更加重视和重点开发的能源之一。随着大型风力发电机组装机容量的增加，其系统结构也日趋复杂，当机组发生故障时，不仅会造成停电，而且会产生严重的安全事故，造成巨大的经济损失。 本论文先探讨了课题的实际意义以及风力发电机常见的故障模式，在这个基础上对齿轮箱故障这种常见故障做了详尽的阐述，包括引起故障的原因、如何识别和如何改进设计。通过对常见故障的分析，给风力发电厂技术维护提供故障诊断帮助，同时也给风电设备制造和安装部门提供理论研究依据。 关键词
风力发电机;故障模式;大型风力发电机组齿轮箱;故障诊断
Common Faults And Their Analysis
Of The Wind Turbine
Abstract
With the global economic development and population growth, humanity is facing with the pressure from two sides of the energy use and environmental protection, the energy problem and environmental pollution has become an increasingly prominent issue. Wind power as a abundant reserves of natural resources, because of its convenient use, renewable, low cost, no pollution, has been more widely used and rapid development in the world. Wind power has been taken as one of the priority development energy sources in the world．The increase of wind power capacity and complicated system structure will
not only cause power outage，but also raise serious accidents when the set is at fault．
In the beginning, the dissertation introduces the practical significance of project and the common failure mode of wind turbines, then researches and describes the failure of gearbox in detail, including the cause of failure, how to identify and how to improve the design. Based on the analysis of common failures, not only provide assistance for fault diagnosis to the technical maintenance of wind power plants, but also provide a theoretical basis to the wind power equipment manufacturing and installation departments.
Key Words
Wind Turbines; Failure Mode; Gear Box; Fault Diagnosis
目 录
第一章 绪论 1
1.1 风力发电的背景 1
1.2 风力发电机故障诊断的意义 2
第二章 风力发电机常见故障模式及机理分析 5
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