现代电子技术2025，Vol.48Issue(10)：167-172,6.DOI:10.16652/j.issn.1004-373x.2025.10.026
基于相空间重构的定子绕组端部机械振动信号监测研究
Research on stator winding end mechanical vibration signal monitoring based on phase space reconstruction
摘要
Abstract
The industrial environment where stator winding ends are applied has a large number of noise sources,and the mechanical vibration signal characteristics of stator winding ends have the features of wide dynamic range and high randomness,making the phase space structure of the vibration signal complex,difficult to accurately reconstruct,and unable to capture the complex dynamic behavior of the signal,and resulting in extremely high difficulty in vibration monitoring.On this basis,a method for monitoring mechanical vibration signals at the stator windings end is proposed.The three-axis accelerometer sensor is used to collect mechanical vibration signals at the stator winding end so as to obtain the time-frequency manifold characteristics of the vibration signals.By combining time-frequency atoms with phase space reconstruction method,the time-frequency distribution of vibration signals in various dimensions of phase space is reconstructed to accurately capture the complex dynamic behavior of signals,highlight the differences between vibration signals and normal signals,and improve the sensitivity of monitoring small changes in signals within a wide dynamic range.The enhanced vibration signal is input into a bidirectional long short-term memory network(BiLSTM)model,so as to realize the mechanical vibration signal monitoring at the end of the stator winding.The experimental results show that the JTFE index is significantly reduced after using the proposed method,indicating that the frequency band energy distribution of the vibration signal is more concentrated,and the vibration signal can be monitored more accurately.关键词
定子绕组端部/机械振动信号/相空间重构/振动信号监测/三轴加速度传感器/双向长短期记忆网络/时频流形特征Key words
stator winding end/mechanical vibration signal/phase space reconstruction/vibration signal monitoring/three-axis accelerometer sensor/bidirectional long short term memory network/time-frequency manifold feature分类
信息技术与安全科学引用本文复制引用
郭铨楹,夏成宇,赵蔚文..基于相空间重构的定子绕组端部机械振动信号监测研究[J].现代电子技术,2025,48(10):167-172,6.基金项目
国家自然科学基金项目(52204001) （52204001）
湖北省重点研发计划:智能耐高温全旋转导向钻头及配套井眼控制技术研究(2021BAA053) （2021BAA053）
