兆瓦级风电齿轮箱故障监测及分析

发布时间：2019-05-20 17:43

【摘要】：我国风电企业正努力实现兆瓦级风力发电技术装备国产化,推动我国兆瓦级风力发电技术大规模商业化发展。齿轮箱作为兆瓦级风电机组的核心部件,对机组质量起到至关重要的作用,及早地发现齿轮箱的早期故障以及尽快找到齿轮箱故障原因,采取相应的措施,对避免发生重大人身、设备伤亡事故有着十分重要的意义。本论文基于振动诊断和油液分析,进行兆瓦级风电齿轮箱故障监测与分析的研究。首先,本文论述了兆瓦级风电齿轮箱性能检测研究背景、国内外的研究现状及研究的目的和意义；其次,分析了兆瓦级风电齿轮箱常见故障,总结了齿轮箱的振动噪声机理,啮合频率的计算,振动噪声的评价指标,并制定了齿轮箱检测的标准,为齿轮箱振动监测系统选择、安装应用及故障分析提供了理论基础；再次,介绍了集成化的风电齿轮箱在线油液监测系统检测指标、系统结构及基本参数、机械结构及安装测试要求；同时,选择了兆瓦级风电齿轮箱振动监测装置,分析了装置特性,将整套监测系统安装到风电机组上进行测试。制作了小型油路机构,用人工方法配制不同的油样进行试验。从准确性、重复性和线性度三个方面,对收集数据的对比分析,从而判断系统的可靠性及精确度,现已安装到风电机组整机试验台陪式齿轮箱进行在线测试。最后,分析了兆瓦级风电齿轮箱故障检测系统研究的特点,以及大规模工程应用所需的准备工作,为后续研究工作提供了依据。国内的兆瓦级风电齿轮箱故障在线监测系统大部分还处于实验研究阶段,真正用于工程实践的产品并不多见。开展兆瓦级风电齿轮箱故障在线监测系统基础理论研究,积极研发监测传感器、测试设备、综合信息处理分析系统仍是今后油液监测研究的主题。
[Abstract]:China's wind power enterprises are working to realize the localization of megawatt-level wind power generation equipment, and promote the large-scale commercial development of the megawatt-level wind power generation technology in our country. As the core component of the megawatt-level wind power unit, the gear box plays an important role in the quality of the unit, The equipment casualty accident is of great significance. Based on the vibration diagnosis and the oil analysis, this paper makes a research on the fault monitoring and analysis of the megawatt-level wind power gearbox First of all, this paper discusses the research background of the performance of megawatt-level wind power gearbox, the present situation and the purpose and significance of the research, and then analyzes the common faults of the megawatt-level wind power gearbox, and sums up the mechanism of the vibration noise of the gear box and the meter of the meshing frequency. The evaluation index of the vibration noise and the standard for the detection of the gear box are established, and the theoretical basis for the selection, installation and failure analysis of the vibration monitoring system of the gear box is provided; and the integrated wind power gearbox on-line oil monitoring system detection means is also introduced. The system structure and basic parameters, mechanical structure and installation test requirements are required; at the same time, the vibration monitoring device of the megawatt-level wind power gearbox is selected, the characteristics of the device are analyzed, and the whole monitoring system is installed on the wind generating set to be tested Test. Make a small oil-way mechanism, and use the manual method to prepare different oil samples for testing. According to the three aspects of accuracy, repeatability and linearity, the comparative analysis of the collected data is carried out, so as to judge the reliability and accuracy of the system, and it is now installed to the accompanying gear box of the whole machine test stand of the wind power unit to carry out on-line measurement. Finally, the characteristics of the research on the fault detection system of the megawatt-level wind power gearbox and the preparation for the large-scale engineering application are analyzed, and the follow-up research work is provided. The on-line monitoring system for megawatt-level wind power gearbox in China is still in the experimental research stage and is really used in engineering practice. The research on the basic theory of the on-line monitoring system of the fault on-line monitoring system of the megawatt-level wind power gearbox, the active R & D monitoring sensor, the test equipment and the comprehensive information processing and analysis system are still the future oil monitoring research
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TM614;TH165.3

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