Modal Parameter Identification of 500kV SF₆ Current Transformer Based on Natural Excitation Method

Abstract:

In this paper the feasibility of natural excitation method which uses cross-correlation function instead of impulse response function of the response to identify the modal parameter of 500kV SF₆ current transformer was discussed .Four different algorithms were used to extract the modal parameter of 500kV SF₆ current transformer with the measured cross-correlation function obtained by natural excitation method. The results of modal parameter identification using natural excitation method and experimental modal analysis were compared in the experimental way.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 3400-3405
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.3400
• Online since: December 2014
• Authors: Qian Zhang*, Zhi Cheng Lu, Yu Han Sun, Min Zhong
• Keywords: 500kV SF₆ Current Transformer, Modal Parameter Identification, Natural Excitation Method

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