配电网余能发电机超瞬态电抗的选择方法  

Selection Method of Super-transient Reactance for Distribution Network Waste Energy Generator

作　　者：杨冶[1] 孙震 郑伟[1] 高贵军[1] 李鹏[1] 陈洋[1] 富钢[1] 巴月娥 朱晓琳[2] 宋承泽 YANG Ye;SUN Zhen;ZHENG Wei;GAO Gui-jun;LI Peng;CHEN Yang;FU Gang;BA Yue-e;ZHU Xiao-lin;SONG Cheng-ze(Angang Steel Group Engineering&Technology Co,Ltd;Steel Making General Plant of Angang Steel Co.,Ltd,Anshan 114000)

机构地区：[1]鞍钢集团工程技术有限公司 [2]鞍钢股份有限公司炼钢总厂,鞍山114000

出　　处：《冶金设备管理与维修》2020年第6期64-67,共4页Metallurgical Equipment Management and Maintenance

摘　　要：余能发电机接入配电网中会导致配电系统的短路容量大幅度增加,而短路电流的增加与发电机的超瞬态电抗值有着直接关系,文章分析了发电机并网后的短路电流计算方法,利用EXCEL拟合曲线找到了短路电流与电抗值的量化关系,并给出了相关的计算公式。Connecting the waste energy generator into distribution network will cause the short-circuit capacity of the power distribution system increasing substantially.It has a direct relationship be-tween the increasing of short circuit current and the super-transient reactance value of the generator.Make an analysis on the calculation method of the short circuit current of the generator after grid con-nection.The quantitative relation between short circuit current and reactance value are found out by means of EXCEL ftting curve.And a relevant caleulation formula is given.

关 键 词：短路电流 超瞬态电抗 拟合曲线 余能发电机 

分 类 号：TM7[电气工程—电力系统及自动化]