电力系统保护与控制Issue(1)：28-33,6.
多台变压器空载合闸励磁涌流及其抑制方案的研究
Study on no-load closing inrush current of transformer group and suppression measures
傅伟 1赵莉华 1梁勇 1何祥龙 1牛中伟1
作者信息
- 1. 四川大学电气信息学院，四川 成都 610065
- 折叠
摘要
Abstract
Taking no-load closing inrush current theory of a single transformer as a foundation, combined with the transformer of the situation in practice, this paper further studies transformer group inrush current. Based on transformer group no-load closing characteristics, it proposes to increase the system impedance and capacitors. Through contrasting the flux changes between the transformer before/after increasing system impedance, it analyzes its impact on the inrush current and describes a method to select the best impedance values. Finally, no-load closing inrush current of transformer group simutaneously switch-on is simulated by using Matlab, and its value is compared with inrush current value of the shcheme of installing single resistor and the scheme of both installing resistor and capacitor. Simulation results show that this suppression scheme effectively suppresses the transformer group inrush current.关键词
变压器/励磁涌流/多台并联/系统阻抗/电容器/抑制方案Key words
transformer/inrush current/multiple parallel/system impedance/capacitors/suppression measures分类
信息技术与安全科学引用本文复制引用
傅伟,赵莉华,梁勇,何祥龙,牛中伟..多台变压器空载合闸励磁涌流及其抑制方案的研究[J].电力系统保护与控制,2015,(1):28-33,6.
