Transient characteristics of mobile transformer vehicle bypass operation

The bypass operation method of mobile transformer vehicles is a common method for the maintenance or replacement of transformers in distribution lines. Using the bypass operation method could avoid power outages and ensure the reliability of electricity consumption. However, the transient characteri...

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Bibliographic Details
Published in:Frontiers in energy research 2023-01, Vol.10
Main Authors: Zhou, Lei, Feng, Xiao, Chen, Xi, Fu, Hongquan, Bian, Changhao, Jing, Yang, Wu, Shaocheng
Format: Article
Language:English
Subjects:
bypass operation
live working
mobile transformer vehicle
stability analysis
transient characteristics
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Summary:The bypass operation method of mobile transformer vehicles is a common method for the maintenance or replacement of transformers in distribution lines. Using the bypass operation method could avoid power outages and ensure the reliability of electricity consumption. However, the transient characteristics of mobile transformer vehicles connected to the grid can have an impact on their power quality. In response to this problem, this study built a model based on MATLAB/Simulink to model the process of grid connection. The simulation analyzed the current and voltage waveforms of the transient process of grid connection. Moreover, a combination of time-domain and frequency-domain analysis was used to analyze the transient overvoltage and overcurrent conditions of the grid connection. Finally, the effects of two overcurrent suppression methods, adjustment of the closing angle method and the series closing resistance method, were analyzed. These studies provide theoretical guidance for engineering applications, which could strengthen the stability of the distribution network.
ISSN:2296-598X
2296-598X
DOI:10.3389/fenrg.2022.1000049