Study on ferromagnetic resonance characteristics and suppression measures of electromagnetic voltage transformer

He Zhang; Chuang Yao; Minghui Duan; Liqing Liu; Jufang Wei; Junji Feng

doi:10.1117/12.3024609

13 May 2024 Study on ferromagnetic resonance characteristics and suppression measures of electromagnetic voltage transformer

He Zhang, Chuang Yao, Minghui Duan, Liqing Liu, Jufang Wei, Junji Feng

Author Affiliations +

Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 131596U (2024) https://doi.org/10.1117/12.3024609
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China

Abstract

In an ungrounded neutral system, when abnormal situations such as closing the no-load busbar, disappearance of single phase grounding, or drastic changes in system load occur, the iron core of the electromagnetic voltage transformer may become saturated, leading to ferroresonance overvoltage. This article analyzes the principle and suppression measures of ferromagnetic resonance in electromagnetic voltage transformers. By establishing a simulation model based on ATPEMTP, the dynamic response characteristics of fundamental frequency resonance, fractional frequency resonance, and low-frequency nonlinear oscillation when a single-phase ground fault occurs in a 10kV system are simulated and analyzed. Different suppression measures are also simulated and analyzed to analyze their advantages and disadvantages, providing reference for engineering applications.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

He Zhang, Chuang Yao, Minghui Duan, Liqing Liu, Jufang Wei, and Junji Feng "Study on ferromagnetic resonance characteristics and suppression measures of electromagnetic voltage transformer", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 131596U (13 May 2024); https://doi.org/10.1117/12.3024609

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