Study on evaluation system and power supply scheme for large-scale and extra-high power Electric Arc Furnace connected to the grid
This paper analyzes adverse effect of electric arc furnace impact load on grid power quality and generator operation etc.,starting from operating characteristics of electric arc furnace,and proposes evaluation system,evaluation program,and treatment measures for connection of EAF to grid. Through study of factors affecting power supply scheme for large scale extra-high power electric arc furnace,it is known that the key of power supply scheme selection is voltage fluctuation and flicker caused by connection of EAF to grid and the effect on generator shafting. Using the distributed power supply scheme for the 6 extra-high power EAF in Zhangjiagang region as an instance,an improved scheme of power supply to large scale extra-high power EAF is proposed,i.e. construction of 500kV Jinfeng Substation that will be exclusively used for EAF loads. Results of simulation show that this scheme can greatly improve public supply network power quality and reduce effect on generator shafting.
Power quality EAF (electric arc furnace) Impact load Power supply scheme
Zhen-jian Xie Hai-qian Wang Zhi-wei Wang Jun-Hui Huang
Jiangsu Electric Power Design Institute,No.58-3 Suyuan Road,Jiangning Development Zone,Nanjing,21110 Jiangsu Power System Planning & Research Center,No.20 West Beijing Road,Nanjing,China,210024 Jiangsu Electric Power Company,No.215 Shanghai Road,Nanjing,China,210024
国际会议
南京
英文
508-513
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）