A Four-Switch Five-Level Inverter

Costa, André Elias Lucena da; Jacobina, Cursino B.; Rocha, Nady; Silva, E.R.C. da; Filho, Antonio Venancio de Moura Lacerda

doi:10.1109/tie.2020.3047010

Cited by 12 publications

(1 citation statement)

References 21 publications

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“…Failure of one of the source leads to inutile operation. Even though the number of switches was reduced in the topology proposed in da Costa et al, 21 the coupled inductors were introduced. During resonance, the switching voltages across the switches increase due to parasitic elements; this must be taken care of.…”

Section: Introductionmentioning

confidence: 99%

A novel reduced switch single‐phase five‐level inverter

Bogineni

Nakka

2022

Circuit Theory & Apps

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Conventional multilevel inverters (MLI) incorporate many independent dc sources and switches, which adds to the overall system's cost and complexity. This article presents a detailed analysis of a reduced switch single‐phase five‐level inverter for medium‐ and high‐power applications. The comparison of the proposed topology with traditional and recently developed MLI topologies shows that the topology proposed has a smaller number of circuit elements, isolated dc sources, and voltage stress of half of the supply voltage on 50% of switches. Reducing the number of components and sources reduces the complexity and total cost of the inverter. These reduced switches voltage stresses increase the overall system reliability. The MATLAB/SIMULINK simulations for different load changes were carried out for analysis in software mode. The scaled‐down prototype is used for the validation of simulation analysis. The components comparison was also carried out to list the advantages of this topology over other MLI configurations.

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Section: Introductionmentioning

confidence: 99%

A novel reduced switch single‐phase five‐level inverter

Bogineni

Nakka

2022

Circuit Theory & Apps

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Asymmetrical multi‐level inverter by using space vector pulse width modulation technique for low and medium power applications

Sahoo,

Roy

2024

Circuit Theory & Apps

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SummaryA DC to AC converter is developed in this paper. This proposes a single‐phase five‐level inverter is developed in such a way that one DC source is used. The structure of the inverter is modular and the capacitor has self‐voltage balancing capability, which eliminates the need for sensors or an additional control loop. This paper presents the schematic diagram of the proposed topology, principle of operation, and the concepts of sinusoidal pulse width modulation (SPWM) for single‐phase and space vector pulse width modulation (SVPWM) for three‐phase. To further prove the advantage, power loss, and parameter computations are calculated mathematically. Low‐voltage stress is achieved in the proposed topology because the blocking voltages of all the switches are constrained to the input voltage. A comparison table is presented between SPWM and SVPWM schemes in three‐phase inverter. The proposed asymmetrical five‐level configuration setup is constructed, and experiments are performed inside the laboratory. The controller of the converter has been implemented in the field‐programmable gate array (FPGA) platform. In order to confirm the viability of the suggested topology, experimental results are provided for single‐phase arrangement. By using the FPGA platform, real‐time implementation is done for a three‐phase inverter topology.

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