Title :
Mitigation of Electric Arc Furnace Voltage Flicker Using Static Synchronous Compensator
Author :
Wang, Y.F. ; Jiang, J.G. ; Ge, L.S. ; Yang, X.J.
Author_Institution :
Dept. of Electr. Eng., Shanghai Jiaotong Univ.
Abstract :
Based on the improved model of nonlinear time-varying electric arc resistance, the power supply system model of electric arc furnace (EAF) is established in Matlab/power system blockset, which is used to investigate voltage flicker problem. A flexible power supply strategy is presented, in which static synchronous compensator (STATCOM) is applied to mitigate the voltage flicker produced by EAF. The instantaneous reactive current of EAF impact load is extracted using instantaneous reactive power theory. Then PWM technology is used for current tracing feedback control to make STATCOM produce the required reactive current. The results of simulation indicate that the strategy is valid to mitigate power supply voltage flicker, and the objective of flexible power supply is achieved
Keywords :
arc furnaces; power supply quality; pulse width modulation; static VAr compensators; time-varying systems; EAF voltage flicker; Matlab-power system blockset; PWM technology; current tracing feedback control; electric arc furnace; instantaneous reactive current; nonlinear time-varying electric arc resistance; power supply system model; static synchronous compensator; Automatic voltage control; Electric resistance; Furnaces; Mathematical model; Power supplies; Power system modeling; Pulse width modulation; Reactive power; Time varying systems; Voltage fluctuations; EAF; STATCOM; modeling; simulation; voltage flicker;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778240
