Title :
The Electrical Parameters Design of EAF Voltage Fluctuation Suppression
Author :
Che Xuezhe ; Shen Fenglong ; Wang Jianhui ; Yan Liyi
Author_Institution :
State Key Lab. of Integrated Autom. for Process Ind., Northeastern Univ., Shenyang, China
Abstract :
In order to solve the problem of voltage fluctuations caused by reactive power consumption and fluctuation range of reactive current in ultra-high power electric arc furnace, the high impedance is used in ultra-high power electric arc furnace system, and it gives the relationship between the arc electrical parameters (series reactance, the transformer voltage, power factor, arc resistance, etc.) under the conditions of constant arc power, also, the mathematical model of change rate of the reactive power fluctuation is established. Here, the 40t electric arc furnace is given as an example to verify the results. The results show that the high impedance can reduce the energy consumption and the capacity of reactive compensation devices, improve the arc stability and reduce the voltage flicker.
Keywords :
arc furnaces; power consumption; power factor; power transformers; reactive power; EAF voltage fluctuation suppression; arc resistance; arc stability; electrical parameters design; high impedance; power factor; reactive compensation devices; reactive current; reactive power consumption; series reactance; transformer voltage; ultra-high power electric arc furnace; voltage flicker reduction; Fluctuations; Furnaces; Impedance; Inductors; Reactive power; Resistance; Voltage fluctuations; High Impedance; Reactive Power; Ultra-High Power Electric Arc Furnace; Voltage Fluctuation;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2011 Second International Conference on
Conference_Location :
Zhangjiajie, Hunan
Print_ISBN :
978-1-4577-0755-1
Electronic_ISBN :
978-0-7695-4455-7
DOI :
10.1109/ICDMA.2011.316