A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current

This article presents a novel quadruple boost inverter (QBI) with an integrated boost stage that comprises an inductor, a capacitor, a switch, and an input source. The inductor on the input side limits the inrush current and also the capacitor charging current ripples. The QBI topology comprises a d...

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Main Authors: Vishal Anand, Varsha Singh, M. Jagabar Sathik, Dhafer Almakhles
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/23/9158
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author Vishal Anand
Varsha Singh
M. Jagabar Sathik
Dhafer Almakhles
author_facet Vishal Anand
Varsha Singh
M. Jagabar Sathik
Dhafer Almakhles
author_sort Vishal Anand
collection DOAJ
description This article presents a novel quadruple boost inverter (QBI) with an integrated boost stage that comprises an inductor, a capacitor, a switch, and an input source. The inductor on the input side limits the inrush current and also the capacitor charging current ripples. The QBI topology comprises a dc source, an input inductor, nine switches, three diodes, and capacitors. This produces a nine-level waveform, which reduces the need for additional filters such as inductors and capacitors. The proposed QBI is elementary, compact, and needs fewer components than existing nine levels inverter. Compared to the typical triangular carrier-based sinusoidal pulse width modulation, the newly developed parabolic level-shifted carrier has a much greater RMS value. Another advantage of the proposed topology is extension for generating higher voltage levels without increment in the blocking voltage across the switches. This makes the topology ideal for medium voltage high power applications. The output voltage has been determined in terms of selection, sizing, and expression. The proposed QBI is compared to existing similar nine-level inverters in order to assess its efficacy. The experiment is performed on a laboratory prototype to state the practical feasibility of QBI topology for the inductive load, variation in input, load, and modulation index.
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spelling doaj.art-8080da92f83844799a7c422d9923b71c2023-11-24T10:56:16ZengMDPI AGEnergies1996-10732022-12-011523915810.3390/en15239158A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush CurrentVishal Anand0Varsha Singh1M. Jagabar Sathik2Dhafer Almakhles3Department of Electrical Engineering, NIT Raipur, Raipur 492010, IndiaDepartment of Electrical Engineering, NIT Raipur, Raipur 492010, IndiaRenewable Energy Laboratory, Prince Sultan University, Salahuddin, Riyadh 12435, Saudi ArabiaRenewable Energy Laboratory, Prince Sultan University, Salahuddin, Riyadh 12435, Saudi ArabiaThis article presents a novel quadruple boost inverter (QBI) with an integrated boost stage that comprises an inductor, a capacitor, a switch, and an input source. The inductor on the input side limits the inrush current and also the capacitor charging current ripples. The QBI topology comprises a dc source, an input inductor, nine switches, three diodes, and capacitors. This produces a nine-level waveform, which reduces the need for additional filters such as inductors and capacitors. The proposed QBI is elementary, compact, and needs fewer components than existing nine levels inverter. Compared to the typical triangular carrier-based sinusoidal pulse width modulation, the newly developed parabolic level-shifted carrier has a much greater RMS value. Another advantage of the proposed topology is extension for generating higher voltage levels without increment in the blocking voltage across the switches. This makes the topology ideal for medium voltage high power applications. The output voltage has been determined in terms of selection, sizing, and expression. The proposed QBI is compared to existing similar nine-level inverters in order to assess its efficacy. The experiment is performed on a laboratory prototype to state the practical feasibility of QBI topology for the inductive load, variation in input, load, and modulation index.https://www.mdpi.com/1996-1073/15/23/9158switched-capacitor cellharmonicsmultilevel inverterboost inverterpower loss
spellingShingle Vishal Anand
Varsha Singh
M. Jagabar Sathik
Dhafer Almakhles
A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current
Energies
switched-capacitor cell
harmonics
multilevel inverter
boost inverter
power loss
title A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current
title_full A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current
title_fullStr A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current
title_full_unstemmed A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current
title_short A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current
title_sort generalized switched capacitor multilevel inverter topology with voltage boosting ability and reduced inrush current
topic switched-capacitor cell
harmonics
multilevel inverter
boost inverter
power loss
url https://www.mdpi.com/1996-1073/15/23/9158
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