Paper Info
Title
A new boost type single source seven-level switched-capacitor based inverter with reduced current stress over the components
Abstract
This paper proposes a new single-phase seven-level inverter. The proposed multilevel inverter is based on a Switch-Capacitor (SC) cell and it has the capability to boost the output voltage. This achievement is obtained by a single input voltage source. The main shortcoming of SC networks is the inrush currents passing through the capacitors while being charged. The proposed multilevel inverter overcomes this problem by using a charging-inductor that charges the utilized capacitor smoothly. The performance of the proposed multilevel inverter is described in different operational modes. The power losses of the used components are analyzed. Design guidance to find optimal values of passive components is given. Comparison is also performed between the proposed multilevel inverter and several conventional seven-level inverters. The proposed multilevel inverter is simulated in MATLAB/Simulink environment under grid-tied transformer-less operation. The experimental 210 VA prototype confirms the correctness of the given theories and the correct operation of the proposed topology.
Year
DOI
Venue
2022
10.1016/j.compeleceng.2022.108160
Computers and Electrical Engineering
Keywords
DocType
Volume
Multilevel inverter,Switched-capacitor-based inverter,Inrush currents,Voltage boosting capability,Grid-connected inverters,Leakage current,Transformer-less inverter
Journal
101
ISSN
Citations 
PageRank 
0045-7906
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Tala Hemmati Shahsavar100.34
Ebrahim Babaei216435.89
Mehran Sabahi36717.96
Arash khoshkbar-Sadigh400.34