发电技术 ›› 2019, Vol. 40 ›› Issue (2): 134-140.DOI: 10.12096/j.2096-4528.pgt.18037

• 能源互联网 • 上一篇    下一篇

基于振动分析法的变压器非电量状态监测与诊断研究

袁国刚1(),饶柱石2()   

  1. 1 上海睿深电子科技有限公司, 上海市 闵行区 201108
    2 机械系统与振动国家重点实验室(上海交通大学), 上海市 闵行区 200240
  • 收稿日期:2018-11-23 出版日期:2019-04-30 发布日期:2019-05-09
  • 作者简介:袁国刚(1980),男,工学硕士,高级工程师,研究方向为机械振动与声学技术, guogang.yuan@rhythm-tech.com|饶柱石(1962),男,教授,博士生导师,研究方向为结构振动噪声分析与控制、旋转机械动力学, zsrao@sjtu.edu.cn
  • 基金资助:
    上海市科学技术委员会科技创新行动计划重点资助项目(18511109402)

Review of Non-electrical Quantity Monitoring and Fault Diagnosis for Power Transformer on Vibration Analysis Method

Guogang YUAN1(),Zhushi RAO2()   

  1. 1 Shanghai Rhythm Electronic Technology Company, Minhang District, Shanghai 201108, China
    2 The State Key Laboratory of Mechanical System and Vibration(Shanghai JiaoTong University), Minhang District, Shanghai 200240, China
  • Received:2018-11-23 Published:2019-04-30 Online:2019-05-09
  • Supported by:
    Science and Technology Innovation Action Plan of Shanghai Municipal Commission of Science and Technology(18511109402)

摘要:

振动分析法可在不停机、不解体的情况下实现变压器的状态监测与故障诊断,对提高设备运行可靠性具有重要意义。变压器表面的振动与变压器绕组及铁心的压紧状态、位移、形变等密切相关,国内外学者对其进行了深入广泛的研究。对振动分析中的数值计算分析方法、振动测试技术进行了叙述,结合快速傅里叶变换、小波、希尔伯特黄变换、盲源分离技术介绍了信号处理方法在变压器振动分析中的应用,阐述了声学分析方法在变压器异常情况下的作用。对在线监测系统和离线振动频响的基本分析方法进行了简述。结合振动分析方法在变压器诊断应用中的趋势和难点,给出了需要深入研究的方向。

关键词: 变压器, 非电量状态监测, 振动, 故障诊断

Abstract:

Vibration analysis method can realize condition monitoring and fault diagnosis of transformer without shutdown and disintegration, which is meaningful to improve the reliability of equipment operation. The vibration of transformer surface is closely related to the compaction state, displacement and deformation of transformer windings and cores, and has been extensively studied by domestic and foreign scholar. The numerical calculation and analysis methods and vibration testing techniques in vibration analysis was described. The application of signal processing methods in transformer vibration analysis was introduced in combination with fast Fourier transform (FFT), wavelet, Hilbert-Huang transform (HHT) and blind source separation technology. The role of acoustic analysis methods in transformer abnormal conditions was expounded. The development of the test device was briefly described, mainly the on-line monitoring system and the basic analysis method of off-line vibrabion frequency response analysis(VFRA). According to the trend and difficulty of vibration analysis method in transformer diagnosis application, the direction of further research was given.

Key words: transformer, non-electrical quantity monitoring, vibration, fault diagnosis