STATCOM在轧钢现场的应用  

Application of STATCOM in Steel Rolling Field

作　　者：辛成涛 乔刚 Xin Cheng-tao;Qiao Gang

机构地区：[1]烟台国网中电电气有限公司,山东烟台264000

出　　处：《电力系统装备》2020年第13期191-192,共2页Electric Power System Equipment

摘　　要：由于交交变频系统轧钢运行过程中频繁存在换相短路现象,此时系统电压突降,容易造成静止同步补偿器(Static Synchronous Compensator,简称STATCOM)装置过压过流.针对此问题,对STATCOM进行了改进,优化了控制算法,增大了进线电抗器阻值,增大了直流侧电容容量.改进后的STATCOM装置运行良好,现场功率因数得到明显提高,变压器温升得到明显降低.Due to the frequent commutation and short circuit in the process of rolling operation of AC-AC frequency conversion system,the sudden drop of system voltage is easy to cause over-voltage and over-current of static synchronous compensator(STATCOM)device.Aiming at this problem,STATCOM is improved.The control algorithm is optimized,the resistance of the incoming reactor is increased,and the capacitance capacity of the DC side is increased.The improved STATCOM device runs well,the fi eld power factor is signifi cantly improved,and the temperature rise of transformer is signifi cantly reduced.

关 键 词：交交变频 换相短路 无功补偿 过压过流 

分 类 号：TM615[电气工程—电力系统及自动化]