A novel single source multilevel inverter with hybrid switching technique

Rao, Bhukya Nageswar; Suresh, Y.; Naik, Banavath Shiva; Venkataramanaiah, J.; Panda, Anup Kumar

doi:10.1002/cta.3196

Cited by 20 publications

(19 citation statements)

References 29 publications

(94 reference statements)

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“…The issue of having several sources in an inverter can be overcome by using a transformer-based MLI (TMLI). [11][12][13][14][15][16][17][18] In TMLI, the total power required to provide an electrical load is alone supplied through a single DC source. Recent past several structures for TMLI have been presented.…”

Section: Literature Reviewmentioning

confidence: 99%

“…These flexible TMLI topologies have been presented to minimize component count, and these circuits use basic seven-level units to build the inverter. Further, the circuits presented in previous works [14][15][16][17][18][19] are suggested for grid-connected and industrial applications. These TMLIs are constructed for nine-level on the output side with reduced switching devices.…”

Section: Literature Reviewmentioning

confidence: 99%

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A new single‐phase multilevel inverter with improved modulation technique

Rao

Suresh

Naik

et al. 2023

Circuit Theory & Apps

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SummaryThis article proposes a seventeen‐level (17L) inverter with a common leg configuration and an improved modulation technique. The proposed inverter uses only 10 switches, one toroidal core transformer, and one dc source. Therefore, the proposed design offers less control complexity with reduced cost and volume. Additionally, the suggested modulation technique improves the load voltage quality by minimizing the harmonic content. Simulation and laboratory studies are performed to confirm the proficiency of the suggested inverter with a new modulation technique. Further, a thorough comparison with recent transformer‐based circuits is carried out to highlight the benefits of the proposed structure.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

A new single‐phase multilevel inverter with improved modulation technique

Rao

Suresh

Naik

et al. 2023

Circuit Theory & Apps

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“…Multiple control approaches exist for multilevel inverters [9][10][11]. Due to the intricacy of capacitor charge balance, the emphasis in this research is on nearest level control approaches between several presented control methods in literature.…”

Section: Introductionmentioning

confidence: 99%

New cascaded multilevel inverter with series connection of novel capacitor based basic units

Laali

Nasiri‐Zarandi

2023

IET Power Electronics

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This research proposes a novel multilevel inverter based on a new capacitor basic unit. Four capacitors are deployed in this unit to provide both even and odd voltage levels. Two‐cell proposed cascaded multilevel inverters and developed cascaded multilevel inverters are evaluated in order to improve the number of output levels generated. Calculations are made for all associated equations after determining the value of the necessary DC voltage source. Additionally, both inverters' switching tables and capacitor charge and discharge modes are fully explained. The merits and disadvantages of the proposed topology are then assessed by contrasting the cascaded multilevel inverter under consideration with a number of widely used multilevel inverters. The key benefit of the suggested architecture is the increase in the number of output levels produced while using fewer power electronic devices and DC voltage sources overall. The proposed one‐cell cascaded inverter is then utilized to evaluate the performance of the proposed topology using the relevant equations, simulations, and experimental data. The simulation is carried out using the EMTDC/PSCAD software, and a lab prototype yields the experimental data.

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“…To get the high gain in the load voltage using a single input DC source in MLIs, many topologies have been proposed based on the SC method 14–17 . In SC‐MLIs, the required number of active switches leads to an increase in system size, cost, and complexity 18 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a grid‐connected reduced‐component boost multilevel inverter (BMLI) topology

Debela

Singh

Sood

2022

Circuit Theory & Apps

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In this paper, a reduced‐component switched‐capacitor boost multilevel inverter (SC‐BMLI) topology is proposed for off‐grid and on‐grid applications. Recently, switched‐capacitor‐based multilevel inverter (MLI) topologies have been employed to avoid the need for multiple isolated direct current (DC) sources when compared with traditional cascaded MLIs. To generate a nine‐level stepped‐up voltage across the load, the SC‐BMLI needs only eight power switches and two capacitors. To get the appropriate nine‐level switching pattern, phase disposition pulse width modulation (PD‐PWM) has been used. An extended 13‐level boost multilevel inverter (BMLI) is also discussed in this paper. The proposed topology is connected to the grid to control the grid current using synchronous reference frame‐based proportional–integral controller. A small‐signal modeling and analysis has been discussed in detail for the phase‐locked‐loop (PLL). Moreover, to prove the superior performance of the SC‐BMLI, comparative analysis with an existing single DC source MLI has also been performed. The feasibility of the 9‐level and 13‐level proposed topologies, with and without the grid‐connection, is evaluated by Matlab/Simulink simulation and verified by an experimental study using the OPAL‐RT 4510 real‐time platform. Further, prototype model of nine‐level BMLI has been developed in the laboratory using DSpace 1103 controller and results are compared with simulation.

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A novel single source multilevel inverter with hybrid switching technique

Cited by 20 publications

References 29 publications

A new single‐phase multilevel inverter with improved modulation technique

A new single‐phase multilevel inverter with improved modulation technique

New cascaded multilevel inverter with series connection of novel capacitor based basic units

Evaluation of a grid‐connected reduced‐component boost multilevel inverter (BMLI) topology

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