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Recursive graph analysis of transformer no load closing vibration signal |
ZHANG Yong1, LI Yong1, YANG Yinghao2, CHEN Bingbing1, MA Hongzhong2 |
1. Nanjing Power Supply Branch, State Grid Jiangsu Electric Power Company, Nanjing 210000; 2. College of Energy and Electrical Engineering, Hohai University, Nanjing 210000 |
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Abstract It is still an important subject to analyze the state information in the vibration information of transformer. The traditional frequency domain analysis method ignores the frequency information of some signals. Combined with the experience of bridges and other construction fields, the response characteristics of the original vibration system are restored based on vibration time series by using phase space reconstruction technology and quantitative recursive graph method. On this basis, the vibration stability of the transformer is quantified by using principal component analysis, which is compared with typical stationary signals. The experimental results show that the proposed stability evaluation method can reflects the stability of the transformer.
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Received: 27 January 2021
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Cite this article: |
ZHANG Yong,LI Yong,YANG Yinghao等. Recursive graph analysis of transformer no load closing vibration signal[J]. Electrical Engineering, 2021, 22(8): 34-38.
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URL: |
http://dqjs.cesmedia.cn/EN/Y2021/V22/I8/34
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