A Study of Digital Measurement and Analysis Technology for Transformer Excitation Magnetizing Curve

Chien-Hsun Chen () and Chih-Ju Chou ()
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Chien-Hsun Chen: Department of Electrical Engineering, National Taipei University of Technology, Taipei 106344, Taiwan
Chih-Ju Chou: Department of Electrical Engineering, National Taipei University of Technology, Taipei 106344, Taiwan

Energies, 2022, vol. 16, issue 1, 1-12

Abstract: Transformer excitation magnetizing curves (TEMC) reflect the dynamic operation characteristics of iron-core materials. Using numerical analysis and the waveform recording function of digital oscilloscopes, we developed a cost-effective method for determining the TEMC. This approach eliminates the need for conventional analog integrator circuits. To address the potential obstacles to the digital generation of TEMC—namely, curve offsets and curve transients—we proposed solutions involving Fourier filtering and determining the initial point of integration. The results indicate that the proposed approach yields results consistent with those of conventional analog integrator circuits and highlight its promise for applications in data processing.

Keywords: transformer excitation magnetizing curves (TEMC); hysteresis curve; integrator; Fourier transform (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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