16- CELL BACK-TO-BACK STACKED MULTICELL CONVERTER

摘要

This paper purposes the harmonic analysis with a new control topology for Back-To-Back Stacked Multicell Converter (BTBSMC) that generates higher number of output voltage levels with lower number of power electronic switches. The BTBSMC is a topology composed of two conventional SM converters, which are connected back-to-back by two low frequency switches. The control topology used in this paper is depends on sector modulation, identification and reference angle generation. In comparison with the Phase Shifted Pulse Width Modulation (PSPWM), the main advantages of the proposed control topology is not required the shifting of the reference waveform and easy to apply this technique to generate higher number of output voltage levels. This paper also proves that by comparing the results by using four, eight and sixteen cell stacked multicell converters, with increasing the number of output levels THD is decreasing, power quality is improving. The converter used is simulated using MATLAB software and the results are presented to validate the effectiveness of the topology.