“A Smulation Based On 12-Pulse Vsc Statcom With Harmonic Filter Reduced Harmonics And Voltage Flickers ”

Abstract

Voltage flicker is considered as one of the most severe power quality problems (especially in loads like electrical arc furnaces), voltage flicker effect on the voltage quality. Due to the latest achievements in the semiconductors industry and consequently the emergence of the compensators based on voltage source converters, FACTS devices have been gradually noticed to be used for voltage flicker compensation. In this thesis voltage flicker mitigation has been investigated for static synchronous compensator (STATCOM). For this purpose a two-bus system connected with STATCOM is used. Initially a 6-pulse voltage source converter STATCOM is used to compensate for the voltage flicker. In this case injection of harmonics into the system caused some problems which are later overcome by using 12-pulse voltage source converter STATCOM and harmonic filter. All the simulations have been performed on the MATLAB SIMULINK software. The obtained results show that STATCOM is very efficient and effective for the flicker compensation.