Journal ArticleDOI
Hybrid Multilevel Inverter Using Switched Capacitor Units
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TLDR
Two new topologies are proposed for multilevel inverters that reduce the number of switches and isolated dc voltage sources, the variety of the dc voltage source values, and the size and cost of the system in comparison with the conventional topologies.Abstract:
In this paper, two new topologies are proposed for multilevel inverters. The proposed topologies consist of a combination of the conventional series and the switched capacitor inverter units. The proposed topologies reduce the number of switches and isolated dc voltage sources, the variety of the dc voltage source values, and the size and cost of the system in comparison with the conventional topologies. In addition, the proposed topologies can double the input voltage without a transformer. There is no need for complicated methods to balance the capacitor voltage. The simulation and experimental results of single-phase 25- and 17-level inverters are given to prove the correct operation of the proposed topologies.read more
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Journal ArticleDOI
A Single-Phase Cascaded Multilevel Inverter Based on a New Basic Unit With Reduced Number of Power Switches
TL;DR: Reduction in the number of power switches, driver circuits, and dc voltage sources is the advantage of the developed single-phase cascaded multilevel inverter, and the installation space and cost of the inverter are reduced.
Journal ArticleDOI
A Self-Balanced Step-Up Multilevel Inverter Based on Switched-Capacitor Structure
TL;DR: In this article, a dc-to-ac converter with the ability of voltage increasing is presented, which is designed in a way that just one dc source is used, and with combining charged capacitors and dc source in series form, output voltage levels can be increased.
Journal ArticleDOI
A New Boost Switched-Capacitor Multilevel Converter With Reduced Circuit Devices
TL;DR: In this article, a single phase switched-capacitor multilevel inverters (SCMLI) is presented, where the same two capacitors paralleled to a single dc source are connected to each other with a new extended configuration.
Journal ArticleDOI
A comprehensive review on reduced switch multilevel inverter topologies, modulation techniques and applications
TL;DR: In this article, a review of different reduced switch MLI topologies under three categories such as symmetric, asymmetric and hybrid configurations is presented, where the important knowledge on these topologies is carefully tabulated based on the three categories in the comparison tables to understand the essential parameters of the MLI.
Journal ArticleDOI
Generalized Structure for a Single Phase Switched-Capacitor Multilevel Inverter Using a New Multiple DC Link Producer With Reduced Number of Switches
TL;DR: In this paper, a new dc/dc converter is proposed which can produce boosted multiple dc link voltages by using the novel switched-capacitor converter (SCC) and with reduced number of switches.
References
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A New Neutral-Point-Clamped PWM Inverter
TL;DR: In this article, a neutral-point-clamped PWM inverter composed of main switching devices which operate as switches for PWM and auxiliary switching devices to clamp the output terminal potential to the neutral point potential has been developed.
Journal ArticleDOI
A New Neutral-Point-Clamped PWM Inverter
TL;DR: The neutral-point-clamped PWM inverter adopting the new PWM technique shows an excellent drive system efficiency, including motor efficiency, and is appropriate for a wide-range variable-speed drive system.
Proceedings ArticleDOI
Multilevel converters-a new breed of power converters
Jih-Sheng Lai,Fang Zheng Peng +1 more
TL;DR: This paper presents three multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded-inverters with separate DC sources.
Journal ArticleDOI
A Survey on Cascaded Multilevel Inverters
TL;DR: A survey of different topologies, control strategies and modulation techniques used by cascaded multilevel inverters in the medium-voltage inverter market is presented.
Journal ArticleDOI
A new approach to enhance power quality for medium voltage AC drives
TL;DR: In this article, a new approach to medium-voltage variable-frequency static AC motor drives was proposed to improve the power quality of the motor by improving motor voltage and current waveforms.