Voltage flicker mitigation by DSTATCOM for voltage source Arc furnace model

This paper presents simulation study of an Electric Arc Furnace (EAF) model in the MATLAB/SIMULINK environment. EAF was modeled as a time domain controlled voltage source (CVS) model. Voltage flicker, a phenomenon of annoying light intensity fluctuation, caused by EAF, has been a major power quality concern for both power companies and customers. A model was developed for the EAF and it was applied in the simulation studies of cascaded H-bridge converter based Distribution STATic synchronous COMpensator (DSTATCOM) for voltage flicker mitigation. The controller for DSTATCOM was designed based on d-q model for the reactive power management, which helps in the mitigation of the flicker. With the validated EAF and STATCOM model, simulations are conducted to study the response of the compensator in the distribution system.