Open AccessVoltage source boost multilevel inverter with high modularity: circuit configuration and modulation
Author(s) -
Sabour Shahin,
Hassanifar Mahyar,
Choupan Reza,
Golshannavaz Sajjad,
Neyshabouri Yousef,
Nazarpour Daryoush
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2020.0711
Subject(s) - modularity (biology) , capacitor , inverter , switched capacitor , voltage , computer science , topology (electrical circuits) , matlab , electronic engineering , high voltage , power (physics) , modulation (music) , electrical engineering , engineering , physics , genetics , quantum mechanics , acoustics , biology , operating system
This study introduces a boost multilevel inverter (MLI) based on a switched capacitor structure. The proposed inverter features high modularity as a result of which more levels and ratings of voltage can be obtained in the inverter AC terminals. The extension of this topology in both symmetric and asymmetric configurations are introduced and analysed. Taking advantage of the switched‐capacitor technique, only one DC source is utilised while the voltages of several capacitors are kept balanced without the adoption of any sophisticated balancing algorithm. A combination of two basic submodules named as boost switched capacitor submodule and dual switched capacitor submodule forms the proposed structure. Compared to the existing alternatives, the proposed one provides more voltage levels with a lower number of power switches and input DC sources. The performance of the presented MLI is verified through the MATLAB/Simulink environment. Finally, the experimental results are presented, validating the feasibility and effectiveness of the studied inverter.