Microcontroller-based switch for three-phase transformer inrush current minimization

被引：2
|
作者：
Mahgoub, OA
机构：
来源：
CIEP 96 - V IEEE INTERNATIONAL POWER ELECTRONICS CONGRESS, TECHNICAL PROCEEDINGS | 1996年
关键词：
D O I：
10.1109/CIEP.1996.618522
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a novel method for the minimization of three-phase transformer inrush current in the case of sustained switching-on operations. First, a simple mathematical model of the three-phase transformer was derived taking the residual flux and the switching-on instant into consideration. A table of optimum switching-on instants corresponding to different residual fluxes was constructed for a specified three-phase transformer. Based on 8031 microcontroller a controlled-switch was built using the mentioned table. Experimental results using the controlled-switch were obtained and compared with others found by direct switching-on which gave good results.
引用
收藏
页码：107 / 112
页数：6
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