TY - JFULL AU - Ali Z a'fari PY - 2011/2/ TI - Mitigation of Flicker using STATCOM with Three-Level 12-pulse Voltage Source Inverter T2 - International Journal of Electrical and Computer Engineering SP - 44 EP - 50 VL - 5 SN - 1307-6892 UR - https://publications.waset.org/pdf/2895 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 49, 2011 N2 - Voltage flicker is a disturbance in electrical power systems. The reason for this disturbance is mainly the large nonlinear loads such as electric arc furnaces. Synchronous static compensator (STATCOM) is considered as a proper technique to mitigate the voltage flicker. Application of more suitable and precise power electronic converter leads to a more precise performance of the compensator. In this paper a three-level 12-pulse voltage source inverter (VSI) with a 12-terminal transformer connected to the ac system is studied and the obtained results are compared with the performance of a STATCOM using a simple two-level VSI and an optimal and more precise performance of the proposed scheme is achieved. ER -