A Case Study for Harmonic Presence Investigation and Mitigation in a Cnc Machine Plant

In this paper analysis of two different cases is being compared for the presence of harmonics at manufacturing plant. Case 1, is a normal system configuration duly interfaced with CNC, AC servo drives, Spindle drive along with adaptive and in-process gauging system, High voltage Module, Isolation transformer and switchgear items and in case 2 additionally part compensated filter is added to reduce both system THvD and THiD levels. Simulation results proved that the proposed harmonic mitigation method is limiting the harmonic level at all three locations satisfactorily within 5% as mentioned in IEEE 519 Standard.