Open AccessSwitched‐capacitor multilevel inverter with self‐voltage‐balancing for high‐frequency power distribution system
Author(s) -
Sathik M. Jagabar,
Bhatnagar Kaustubh,
Siwakoti Yam P.,
Bassi Hussain M.,
Rawa Muhyaddin,
Sandeep N.,
Yang Yongheng,
Blaabjerg Frede
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.2019.1249
Subject(s) - voltage , switched capacitor , electronic engineering , topology (electrical circuits) , computer science , power (physics) , capacitor , capacitance , inverter , low voltage , network topology , control theory (sociology) , electrical engineering , engineering , physics , quantum mechanics , control (management) , electrode , artificial intelligence , operating system
Switched capacitor multilevel inverter (SCMLI) with reduced components is attractive for higher number of voltage levels due to less implementation complexity and low cost. In this study, a new family of hybrid SCMLI for high frequency power distribution system is presented to eliminate the intermediate power conversion. Firstly, a five‐level SCMLI employing a single voltage source is proposed, which is further extended to nine‐level (9L) with its operation. Further extension/enhancement of the proposed 9L‐SCMLI for generating a higher number of voltage levels with reduced number of components is achieved on the basis of structural modification. The mathematical analysis for determination of capacitance, power loss analysis and comparative analysis has been provided in detail. A comprehensive comparison with other similar topologies is also provided to highlight the merits of the proposed topology. Simulation and experimental results are discussed for various dynamic load conditions with different output frequencies to validate the suitability of the proposed SCMLI for various high‐frequency AC applications, such as renewable energy systems, microgrids, electric vehicles and so on.