PROJECT TITLE :

A Self-balanced Step-up Multilevel Inverter based on Switched-Capacitor Structure - 2017

ABSTRACT:

During this paper, a dc to ac converter with the ability of voltage increasing is presented. This inverter is intended in a manner that just one dc source is used. Also, by using power storage technique and with combining charged capacitors and dc source in series type, output voltage levels can be increased. This inverter is in a very modular structure and has the flexibility of capacitor's voltage self-balancing. H-bridge inverter was not used at the tip of the proposed converter and every one elements tolerate a voltage stress equal to the number of input dc source. This leads to remarkable decrease of total standing voltage and peak inverse voltage. Different advantage of the proposed inverter is its potentiality of performance in high-frequency applications. The modular type of the proposed inverter provides the potentiality of extension to higher voltage levels and eases the upkeep. Moreover, considering to the fact that the strain of all elements of the suggested inverter is equal to the input supply, the performance in high voltage is added to the characteristics of the proposed inverter. The nine-level structure of the proposed inverter is simulated and laboratory check is carried out for the verification of its performance.