A Series Voltage Sag Compensator with Reduced Magnitude of Transformer Inrush Current

S. Bukhari, Mahnoor Gul, F. Chachar
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引用次数: 2

Abstract

Voltage sags are found to be the key power quality problems faced by the industrial consumers. These sags frequently cause the disturbance in industrial manufacturing processes and result in substantial financial losses. In order to deal with such problems, a voltage sag compensator is often installed since it is among the most economical solutions to deal with sags to protect the sensitive loads. However, a problem of inrush transient current occurs as the series transformer gets energized to compensate the load voltage. This not only affects the critical load but also triggers the over-current mechanism of the series voltage sag compensator (SVSC). This paper proposes a SVSC with the reduced magnitude of transformer inrush current using a current controlled inverter. The proposed SVSC is validated using simulation results.
降低变压器涌流幅度的串联电压暂降补偿器
电压跌落是工业用户面临的主要电能质量问题。这些下垂经常引起工业制造过程中的干扰,并导致大量的经济损失。为了处理这些问题,通常安装电压暂降补偿器,因为它是处理暂降以保护敏感负载的最经济的解决方案之一。但是,当串联变压器通电补偿负载电压时,会产生暂态涌流问题。这不仅会影响临界负载,还会触发串联电压暂降补偿器(SVSC)的过流机制。本文提出了一种利用电流控制逆变器减小变压器涌流幅度的SVSC。仿真结果验证了该方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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