摘要
水轮机轴心轨迹包含了大量的信息,对轴心轨迹的分析是水轮机组振动故障诊断的重要方法。由于轴心轨迹中包含了大量的噪声信息,将小波分析的理论应用于轴心轨迹的提纯,并在传统小波分析的基础上引入谐波小波。通过计算机模拟实验,达到了比较理想的轨迹提纯效果。
Plenty of information is contained in the hydraulic generator's axis orbit. The axis orbit analysis is an important method forvibration trouble diagnosis of hydraulic generator. Because much noise is included in the axis orbit, the wavelet analysis theory isapplied to purification of axis orbit. Based on traditional wavelet analysis, the harmonic wavelet is introduced. The computersimulation shows that the result of axis orbit purification is satisfactory.
出处
《水电站机电技术》
2011年第1期8-11,64,共4页
Mechanical & Electrical Technique of Hydropower Station
关键词
故障诊断
轴心轨迹提纯
小波分析
谐波小波
trouble diagnosis
axis orbit purification
wavelet analysis
harmonic wavelet
