标题：Simulation analysis of transformer inrush current based on the same switching angle
作者：Qi, Guo Zheng ;Liu, Zhi Zhen ;Yang, Yong ;Liao, Wei Ping
作者机构：[Qi, Guo Zheng ;Liu, Zhi Zhen ;Yang, Yong ;Liao, Wei Ping ] School of Electrical Engineering, Shandong University, Jinan; 250061, China
会议名称：IEEE International Conference on Applied Superconductivity and Electromagnetic Devices, ASEMD 2015
会议日期：November 20, 2015 - November 23, 2015
来源：2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices, ASEMD 2015 - Proceedings
摘要：High-magnitude inrush current happens when the no-load transformer core falls into saturation during energization. A new method of suppressing the inrush current from a three-phase transformer is proposed based on the principle of the same switching angle. The closing time of transformer is obtained by the actual opening time. The results of simulation show that the size of the synthesized magnetic flux is closely related to the synthetic voltage and the inrush current of each phase is closely related to its flux. The strategy completely eliminates the transient flux, and then the transformer runs directly in the steady state.
© 2015 IEEE.