毕业设计（论文）
题目风电机组在线监测系统
硬件设计
专业
班级
学号
学生
指导教师
2015年
摘要
近年，随着世界对新能源的快速发展，风力发电技术已经成为当前风能利用的主要技术之一。然而，由于风力发电机组常年运行在恶劣的环境中，其内部的轴承、齿轮箱、发电机等经常出现故障，为此我们引进了在线监测技术，以便于监测风电机组的运行状态，及早的发现风电机组的故障，减少经济损失。
针对目前的在线监测技术来说，大量的数据信息需要可靠的快速的采集并加以处理，但是目前许多数据采集系统依然不能够达到这些要求，其中往往存在许许多多的问题，如系统过于庞大，可靠性低等等。
基于ARM处理器的嵌入式数据采集系统具有低功耗、体积小、采集速度快、价格低廉等特点。本文在对风电机组常见故障的分析基础上，着重研究了以主轴承、齿轮箱、发电机的振动信号为采集对象的基于ARM处理器的嵌入式数据采集系统。该系统包含了五个振动传感器和两个温度传感器、信号调理电路和A/D转换电路。在设计完采集系统后对系统做了调试实验，验证了采集系统的快速性和可靠性。
关键词：在线监测；风电机组；齿轮箱；数据采集；ARM Hardware Design Of On-line Monitoring System For
Wind Turbine
ABSTRACT
In recent years,with the rapid development of new energy in the world，Wind power generation
technology has become one of the main technology of wind energy utilization.However, due to the wind turbine year-round operation in harsh environment, the internal bearing, gear box and generator often fails. For this reason, we introduce the online monitoring technology to monitoring the operation of wind turbine and discovery of wind turbine fault in time, reduce the economic loss.
In view of the current on line monitoring technology, a large amount of data requires reliable rapid acquisition and processing, but at present many of the data acquisition system is still not able to meet these requirements, of which there are many, many problems, such as the system is too large, low reliability, and so on.
The embedded data acquisition system based on ARM processor has the features of low power consumption, small size, fast acquisition speed, low price, etc.. The on the base of the analysis on the common faults of wind turbine, focuses on the main bearings, gearbox and generator of vibration signal for the collection of objects based on the arm processor embedded data acquisition system. The system contains five vibration sensors and two temperature sensor, signal conditioning circuit and A/D converter circuit. After the design of the system, the debugging experiment is done to verify the rapidity and reliability of the system.
KEY WORDS：on-line monitoring; wind turbine;
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gearbox; data acquisition; ARM
目录
第一章绪论0
1.1选题的目的及意义0
1.2 状态监测在国内外的发展现状1
1.2.1 国外发展现状1
1.2.2 国内发展现状2
1.2.3 存在的问题4
第二章风电机组结构及常见故障0
2.1 风电机组结构及其工作原理0
2.1.1风电机组分类0
2.1.2 风电机组结构2
2.1.3 风电机组工作原理5
2.2风电机组常见故障5
2.2.1 主轴承组成及常见故障6
2.2.2 齿轮箱组成及常见故障7
2.2.3 联轴器构成及常见故障8
2.2.4 发电机构成及常见故障9
2.3 本章小结10
第三章风电机组数据采集系统关键技术及部件12
3.1 数据采集系统12
3.1.1 数据采集简介12
3.1.2 数据采集系统基本组成13
3.1.3 数据采集原理15
3.2 测点的确定及传感器的选取18
3.2.1 监测点的确定18
3.2.2 传感器的选取20
3.3 ARM芯片的选取22
3.3.1 ARM嵌入式系统特点22
3.3.2 处理器的选取23
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