基于LabVIEW的风力发电机组振动分析与故障诊断
发布时间：2018-10-19 17:21
【摘要】：随着社会经济发展,风力发电技术得到了世界各国广泛地应用。同时由于风力发电机组一般工作在环境极其恶劣的条件下,这样会造成风力发电机组故障频发。其发生故障的原因有很多,其中传动系统出现故障的频率最为普遍。为了能确保并及时发现传动链的故障,防止由于传动机构故障而造成巨大损失,故对风力发电机组传动系统进行振动分析和故障诊断是十分有意义的。本文是针对风力发电机组传动系统进行故障监测,开发设计了整个系统的硬件和软件部分,实现了对风力发电机组传动机构振动分析和故障诊断。 本文首先针对目前风力发电机组的发展趋势和风力发电技术的发展现状进行了简单介绍,完成了对振动分析与故障诊断系统的硬件电路设计,其中包括传感器的选型、振动测点的位置选取和信号的处理等,通过整个硬件系统完成信号的同步采样,将硬件系统采集的原始振动数据通过网络通信传输到上位机软件系统。 同时,对机组传动机构常见的故障进行分析,并利用LabVIEW作为软件开发平台,开发了振动分析与故障诊断软件系统。该系统具有基于TCP/IP协议的网络通信模块、生产者／消费者的采集模块、实时的状态监测模块、有效的振动分析模块等功能。振动分析模块又包括了时域分析、频谱分析、倒频谱分析、经验模态分解、包络分析、阶比分析等分析方法,并成功应用在该系统中。 该振动分析与故障诊断系统已经应用在工程上,并成功地验证了该系统的可靠性和有效性。
[Abstract]:With the development of social economy, wind power generation technology has been widely used all over the world. At the same time, the wind turbine usually works under the extremely bad environment, which will lead to frequent faults of the wind turbine. There are many reasons for its failure, among which the frequency of transmission system fault is the most common. In order to ensure and discover the fault of the transmission chain in time and prevent the huge loss caused by the fault of the transmission mechanism, it is very meaningful to analyze the vibration and diagnose the fault of the transmission system of the wind turbine. In this paper, the fault monitoring of the wind turbine transmission system is carried out, the hardware and software of the whole system are developed and the vibration analysis and fault diagnosis of the transmission mechanism of the wind turbine are realized. In this paper, the development trend of wind turbine and the development status of wind power generation technology are introduced briefly, and the hardware circuit design of vibration analysis and fault diagnosis system is completed, including the selection of sensor. The position of vibration measuring points and signal processing are selected, and the synchronous sampling of signals is completed through the whole hardware system. The original vibration data collected by the hardware system is transmitted to the host computer software system through network communication. At the same time, the common faults of the transmission mechanism of the unit are analyzed, and the software system of vibration analysis and fault diagnosis is developed by using LabVIEW as the software development platform. The system has the functions of network communication module based on TCP/IP protocol, producer / consumer acquisition module, real-time state monitoring module, effective vibration analysis module and so on. The vibration analysis module includes time domain analysis, spectrum analysis, cepstrum analysis, empirical mode decomposition, envelope analysis, order analysis and so on, and is successfully applied in the system. The vibration analysis and fault diagnosis system has been applied in engineering, and the reliability and effectiveness of the system have been successfully verified.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM315
[Abstract]:With the development of social economy, wind power generation technology has been widely used all over the world. At the same time, the wind turbine usually works under the extremely bad environment, which will lead to frequent faults of the wind turbine. There are many reasons for its failure, among which the frequency of transmission system fault is the most common. In order to ensure and discover the fault of the transmission chain in time and prevent the huge loss caused by the fault of the transmission mechanism, it is very meaningful to analyze the vibration and diagnose the fault of the transmission system of the wind turbine. In this paper, the fault monitoring of the wind turbine transmission system is carried out, the hardware and software of the whole system are developed and the vibration analysis and fault diagnosis of the transmission mechanism of the wind turbine are realized. In this paper, the development trend of wind turbine and the development status of wind power generation technology are introduced briefly, and the hardware circuit design of vibration analysis and fault diagnosis system is completed, including the selection of sensor. The position of vibration measuring points and signal processing are selected, and the synchronous sampling of signals is completed through the whole hardware system. The original vibration data collected by the hardware system is transmitted to the host computer software system through network communication. At the same time, the common faults of the transmission mechanism of the unit are analyzed, and the software system of vibration analysis and fault diagnosis is developed by using LabVIEW as the software development platform. The system has the functions of network communication module based on TCP/IP protocol, producer / consumer acquisition module, real-time state monitoring module, effective vibration analysis module and so on. The vibration analysis module includes time domain analysis, spectrum analysis, cepstrum analysis, empirical mode decomposition, envelope analysis, order analysis and so on, and is successfully applied in the system. The vibration analysis and fault diagnosis system has been applied in engineering, and the reliability and effectiveness of the system have been successfully verified.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM315
【参考文献】
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