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Research on Voltage Sag Treatment Technologies in Papermaking Mills
Received:June 21, 2023  
DOI：10.11980/j.issn.0254-508X.2023.10.018
Key Words:papermaking mills  voltage sag  dynamic voltage restorer  compound control strategy
Fund Project:陕西省榆林市2020年科技计划项目（CXY-2020-090）。
Author NameAffiliationPostcode
ZHANG Kaisheng* College of Electrical and Control Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
QIN Bo College of Electrical and Control Engineering， Shaanxi University of Science & Technology， Xi’an， Shaanxi Province， 710021 710021
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Abstract:Aiming at the problems of voltage sag in papermaking mills， combined with the treatment requirements， the dynamic voltage restorer was taken as entry point and the improved proportional resonance compound control strategy was studied. Through Matlab/Simulink platform， the effective compensation for voltage sag in papermaking mills was realized. In this study， the dynamic voltage restorer designed could obtain energy from the power grid without additional energy storage devices. In addition， the three-phase bridge inverter with split capacitor was controlled to output the compensation voltages in separate phase. As a result， the various voltage sag faults including three-phase unbalance were treated effectively.
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