Five-Level Switched Capacitor Inverter for Photovoltaic Applications

2022 ◽  
pp. 1-8
Author(s):  
Ashutosh Kumar Singh ◽  
Rajib Kumar Mandal ◽  
Ravi Raushan ◽  
Ravi Anand
Keyword(s):  
Switched Capacitor ◽  
Photovoltaic Applications

scholarly journals Generalized Cascaded Symmetric and Level Doubling Multilevel Converter Topology with Reduced THD for Photovoltaic Applications

Electronics ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 161 ◽  
Author(s):  
Karthikeyan D ◽  
Vijayakumar K ◽  
Jagabar M
Keyword(s):  
Low Voltage ◽  
Harmonic Distortion ◽  
Prototype Model ◽  
Switched Capacitor ◽  
Multilevel Converter ◽  
Dc Offset ◽  
Modulation Technique ◽  
Photovoltaic Applications ◽  
Converter Topologies ◽  
Converter Topology

In this paper, two different converter topologies for a basic new switched capacitor diode converter with a reduced number of power electronics components, suitable for grid connected photovoltaic applications were proposed. The two different structures of switched diode multilevel converter proposed were: (i) cascaded switched diode and (ii) cascaded switched diode with doubling circuit. The switched-diode multilevel converter was compared with other recent converters. In addition, a new dc offset nearest level modulation technique was proposed. This proposed dc offset technique offers low voltage total harmonic distortion (THD) and high RMS output voltage. The proposed modulation technique was compared with conventional nearest level modulation (NLM) and modified NLM control techniques. The performance of the proposed dc offset modulation technique was implemented using a FPGA Spartan 3E controller and tested with a novel switched capacitor-diode multilevel converter. However, to prove the authenticity of the switched-diode multilevel converter and modulation technique, a laboratory-based prototype model for 7-level and 13-level converters was developed.

scholarly journals A Limited Common-Mode Current Switched-Capacitor Multilevel Inverter Topology and Its Performance and Lifetime Evaluation in Grid-Connected Photovoltaic Applications

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1915
Author(s):  
Hossein Khoun Jahan ◽  
Reyhaneh Eskandari ◽  
Tohid Rahimi ◽  
Rasoul Shalchi Alishah ◽  
Lei Ding ◽  
...  
Keyword(s):  
Lifetime Distribution ◽  
Multilevel Inverter ◽  
Switched Capacitor ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Photovoltaic Applications ◽  
Simulation Results ◽  
Current Reduction ◽  
Inverter Topology ◽  
Mission Profile

In this paper, a switched-capacitor multilevel inverter with voltage boosting and common-mode-voltage reduction capabilities is put forth. The proposed inverter is synthesized with one-half bridge and several switched-capacitor cells. Due to the voltage boosting and common-mode current reduction features, the proposed multilevel inverter is suitable for grid-connected PV applications. In addition, an analytical lifetime evaluation based on mission profile of the proposed inverter has been presented to derive lifetime distribution of semiconductors. Whereas in the proposed inverter, any components failure can bring the whole system to a shutdown. The series reliability model is used to estimate the lifetime of the overall system. The performance of the suggested multilevel inverter in grid-connected applications is verified through the simulation results using the grid-tied model in Matlab/Simulink. Moreover, the viability and feasibility of the presented inverter are proven by using a one kW lab-scaled prototype.

Sign in / Sign up

Export Citation Format

Share Document