Open AccessSwitched‐capacitor‐based boost multilevel inverter topology with higher voltage gain
Author(s) -
Siddique Marif Daula,
Mekhilef Saad,
Mohamed Shah Noraisyah,
Sathik Mohamed Ali Jagabar,
Seyedmahmoudian Mehdi,
Horan Ben,
Stojcevski Alex
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.2020.0446
Subject(s) - topology (electrical circuits) , capacitor , voltage , network topology , h bridge , computer science , inverter , electronic engineering , electrical engineering , engineering , operating system
This study proposes a new switched‐capacitor‐based multilevel inverter topology with a single dc voltage source. The proposed topology finds its suitability for renewable energy applications with low voltage. Seven‐level (7L) output voltage is achieved across the load with triple‐voltage gain employing 2 capacitors and 12 switches. Self‐voltage balancing of capacitor voltages, parallel operation of capacitors during discharging mode, reduced voltage stress, and bipolar output voltage generation without using backend H‐bridge are the major features of the proposed topology. Furthermore, a generalised structure of the proposed topology has also been discussed here. A comparison with other similar topologies with single‐source 7L configuration has been carried out to show the advantages of the proposed topology with reduced switch count. Experimental results have been provided to verify the performance of the proposed topology with different operating conditions.