Paper Details

ABSTRACT

This Dissertation is dedicated to Performance analysis of cascade multilevel inverter using static synchronous compensator (STATCOM). The main object is maintaining the voltage stability and improves the power quality in the power system. Therefore a new control strategy is proposed in order to reduce the voltage fluctuation and also to minimize current and voltage harmonics in the transmission system. So in flexible AC Transmission systems (FACTS) controller, the STATCOM have shown easiest in terms of cost effectiveness in a wide range of problem solving abilities from transmission to distribution levels. A cascade multilevel inverter is power electronics device which convert DC voltage into desired AC voltage. A standard cascade multilevel inverter requires “n” DC source for 2n+1 level. To operate a high voltage application a large number of DC capacitors are utilized in a cascade multilevel inverter using STATCOM. To achieve a low distortion output voltage or a nearly sinusoidal output waveform, a triggering signal should be generated to control the switching frequency of each power semiconductor switch. The simulation results of MATLAB/SIMULINK model indicate the performance of the proposed control system as well as the precision of the proposed system.