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| 应用循环平稳方法分离电机系统故障 | |
| 引用本文： | 张克南,徐光华,谢里阳,陈一军,万年红,郑进文.应用循环平稳方法分离电机系统故障[J].振动．测试与诊断,2006,26(2):87-91. |
| 作者姓名： | 张克南 徐光华 谢里阳 陈一军 万年红 郑进文 |
| 作者单位： | 1. 东北大学机械工程与自动化学院,沈阳,110004 2. 西安交通大学机械工程学院,西安,710049 3. 宝钢工业检测公司,上海,201900 |
| 摘 要： | 采用定子电流法对电机及其拖动设备进行扭振监测与诊断时，电流信号中频率成分复杂，不仅包含故障频率还有工频及其他信号成分，使用传统的信号处理方法难以将故障频率成分从中分离出来，造成诊断不准确。采用循环平稳的方法对电流信号进行解调，以去除电流信号中的工频干扰，同时对故障频率进行分离，达到更准确识别故障的目的。数据仿真和现场试验的结果表明，采用该种方法能够去除工频成分和分离故障信息，提高了采用定子电流法进行故障诊断的准确性。 |
| 关 键 词： | 循环平稳 定子电流 故障诊断 扭转振动 |
| 收稿时间： | 2005-10-19 |
| 修稿时间： | 2005-12-12 |
Fault Separation of Electro-Mechanical Systems Based on Cyclostationary |
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| Zhang Kenan,Xu Guanghua,Xie Liyang,Chen Yijun,Wan Nianhong,Zheng Jinwen.Fault Separation of Electro-Mechanical Systems Based on Cyclostationary[J].Journal of Vibration,Measurement & Diagnosis,2006,26(2):87-91. | |
| Authors: | Zhang Kenan Xu Guanghua Xie Liyang Chen Yijun Wan Nianhong Zheng Jinwen |
| Abstract: | When using stator current method to monitor and diagnose the electro-mechanical systems' torsional vibration, the current signal includes many kind of frequencies which are the modulation products of the power system frequency and the vibration frequency. It is difficult to separate the faults signal out using the traditionally signal processing method. This paper proposed to process the current signal using cyclostationary method to wipe off the power system frequency and separate the fault signals from the vibration signal,and the faults were identified more accurately. This method was verified quantitatively by digital simulation and experimental results. |
| Keywords: | cyclostationary stator current fault diagnosis torsional vibration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |