A power conditioner versus a DSTATCOM for compensation of flicker in distribution systems

This paper presents a simple and effective control strategy for a custom power conditioner, (mitigation device), to improve the voltage and the current in the arc furnace environment. The new strategy depends on a recursively innovative implementation of the second-order digital notch filter. It is the first time to utilize the regular notch filter for power quality improvement. The performance of the proposed control is compared to the performance of the traditional control strategies those are used to improve the voltage and current of the arc furnaces. The presented ideas are conveyed and approved through simulation results using MATLAB/SIMULINK for a real time-domain model of the arc furnace.