基于HU不变矩的大型发电机组轴心轨迹识别方法

Recognition Method of Axis Track of Large Generator Set Based on HU Invariant Moment

本文基于LabVIEW开发工具,结合轴心轨迹基准图形,应用HU不变矩基本原理,建立了基准图形的状态判别数据库,开发轴心轨迹识别模块,以判断轴心轨迹故障类别。此外,通过分析轴心轨迹与基准图形之间的相似度,基于对大型发电机组长期运行的轴心轨迹监测分析,对可能发生的故障进行预测。

Based on LabVIEW development tool,combined with the axis trajectory datum graph and the basic principle of HU moment invariant,this paper establishes the status discrimination database of the datum graph,and develops the axis trajectory recognition module to judge the type of axis trajectory fault.In addition,by analyzing the similarity between the axis trajectory and the reference figure,based on the monitoring and analysis of the axis trajectory of the long-term operation of the unit,the possible faults are predicted.