电力系统保护与控制Issue(17)：120-124,5.
一种消除单相变压器励磁涌流的预充磁策略
Eliminating the single-phase transformer inrush current based on pre-magnetizing
摘要
Abstract
Energization of transformer both unload and removal of fault is accompanied with an inrush current, the value of which depends on the angle of the applied voltage, residual flux of the core, the impedance of system and so on. A strategy of eliminating the single-phase transformer inrush current is proposed, which refers to set the transformer residual flux to a known value which is equal to the flux when energization by a pre-magnetizing device, while decreases the inrush current. By theoretical analysis, the relationship between size of capacitor and the voltage, the degree of magnetization of the core and the corresponding phase are determined. Finally, in case of a single-phase transformer, the proposed strategy is verified by Simulink simulation.关键词
变压器/励磁涌流/磁滞回线/剩磁/预充磁Key words
transformer/inrush current/hysteresis loop/residual flux/pre-magnetizing分类
信息技术与安全科学引用本文复制引用
何小庆,刘淑萍,李攀宏,陈德明,高仕斌..一种消除单相变压器励磁涌流的预充磁策略[J].电力系统保护与控制,2014,(17):120-124,5.基金项目
国家自然科学基金重点项目（U1134205）；牵引供电自动化关键技术深化研究-铁路牵引变电所智能化技术研究（2013J003-A）This work is supported by National Natural Science Foundation of China (No. U1134205) （No. U1134205）
