电力系统保护与控制2012，Vol.40Issue(14)：44-50,7.
电网恢复初期和应涌流产生机理及影响因素分析
Analysis of the generation mechanism and influencing factors on sympathetic inrush in initial period of power system restoration
摘要
Abstract
In the initial period of power system restoration, the sympathetic inrush current will appear as a result of the saturation when charging no-load transformer. Based on the mathematical representations of flux linkage and the integral model of sympathetic inrush of two shunt-wound transforms in initial period of power system restoration, this paper indicates that sympathetic inrush is generated through the change of linkage of running transformer by sudden change of public bus voltage in two shunt-wound transformers. The sympathetic inrush value is decided by the integral value of public bus voltage in a period. Then the influence of system impedance, load capacity and load power factor that has been restored on sympathetic inrush current is analyzed in-depth. The analytical results are tested and verified by computer simulation and useful conclusion and reference are provided for estimating sympathetic inrush current.关键词
恢复初期/和应涌流/变压器/系统阻抗/负荷量/负荷功率因数Key words
initial period of restoration! sympathetic inrush s transformer/ system impedance/ load capacity/ load power factor分类
信息技术与安全科学引用本文复制引用
龚薇,刘俊勇,贺星棋,张国松..电网恢复初期和应涌流产生机理及影响因素分析[J].电力系统保护与控制,2012,40(14):44-50,7.基金项目
四川大学青年教师科研启动基金(2012SCU11005) （2012SCU11005）
