Verification of firing angles of static var compensator with alternating current electric arc furnace

Non linear and chaotic loads like alternating current electric arc furnace (AC EAF) lead to power quality issues like poor power factor, harmonic generation etc. Static var compensator (SVC) is perfect solution for mitigating the above mentioned threats to power quality. The SVC behaves like shunt connected variable impedance which either generates or absorbs reactive power in parallel to the AC EAF. This generation and consumption of reactive power is balanced by thyristor controlled reactor by varying the firing angles of thyristors and control the current passing through the reactors. This review presents MATLAB simulation of thyristor controlled reactor with the SVC. This review also verifies firing angles of thyristor controlled reactor of the SVC so that reactive power drawn by AC EAF load at various power stages from the system is almost zero in line with actual field practice for nearly unity power factor operations.