Level-Shifted PWM Techniques Applied to Flying Capacitor Multilevel Inverter

Sreejyothi, Khammampati R; Chenchireddy, Kalagotla; Lavanya, N.; Reddy, R Maheshwar; Prasad, K Y Giri; Revanth, R

doi:10.1109/icears53579.2022.9752074

Cited by 18 publications

(3 citation statements)

References 19 publications

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“…voltage levels allow the inverter to generate a clear AC waveform compared to other voltage inverters with a small number of levels. It is a powerful electronic device used in multiple applications [9]- [12].…”

Section: Introductionmentioning

confidence: 99%

Novel cascaded switched-diode five level inverter for renewable energy integration

Ghughuloth,

Varma,

Adwaith

et al. 2024

IJAAS

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This research presents the usage of a unique five-level cascaded switching diode for medium voltage integration of renewable energy sources. Its primary purpose is to decrease the quantity of gate drivers and switches. In addition to that, the cost and space for the installation of multilevel inverters are less. The inverter topology of novel cascaded multilevel inverters and switched diodes will combine both benefits. One-cycle control (OCC), which is used for clock phase-shifting (CPS) to regulate a two-stage container security device (CSD) multilevel inverter of renewable energy integration, was created to address issues with the multilevel inverter's direct current (DC) source variations. The topology also provides efficiency, harmonic distortion reduction, and voltage output quality. Waveforms are created, and a robust resistance to DC source variations is attained. The viability of the unique five-level inverter using cascaded switched diodes is confirmed by discussing the results of both simulation and experiment.

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Section: Introductionmentioning

confidence: 99%

Novel cascaded switched-diode five level inverter for renewable energy integration

Ghughuloth,

Varma,

Adwaith

et al. 2024

IJAAS

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“…A single-phase, seven-level Gallium-Nitride GaN inverter prototype was used for experimental testing while using MATLAB/Simulink. In [14] another level-shift PWM method used on the flying capacitor three-phase, five-level inverter was presented. The proposed inverter has a drawback of the suggested topology is the increased number of capacitors.…”

Section: Introductionmentioning

confidence: 99%

An improved modulation technique suitable for a three level flying capacitor multilevel inverter

Mahafzah,

Negry,

Obeidat

et al. 2024

IJECE

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This research paper introduces an innovative modulation technique for controlling a 3-level flying capacitor multilevel inverter (FCMLI), aiming to streamline the modulation process in contrast to conventional methods. The proposed simplified modulation technique paves the way for more straightforward and efficient control of multilevel inverters, enabling their widespread adoption and integration into modern power electronic systems. Through the amalgamation of sinusoidal pulse width modulation (SPWM) with a high-frequency square wave pulse, this controlling technique attains energy equilibrium across the coupling capacitor. The modulation scheme incorporates a simplified switching pattern and a decreased count of voltage references, thereby simplifying the control algorithm.

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“…Over the years, a variety of multilevel inverter topologies have been developed. Citing the classical ones, such as Neutral Point Clamped (NPC) [11,12], Flying Capacitor (FC) [13,14] and Cascaded H-bridge (CHB) [15], these inverters use a large number of components and even more than one DC source. For those reasons, researchers have developed new topologies of multilevel inverters such as Packed U-Cells (PUC) [16][17][18], which needs a low number of passive and active switches and provides a high number of levels without using filters or sensors, and Split Packed U-Cells (SPUC) [19], which is able to combine capacitors together, and also uses a small number of components with an uncomplicated PWM control technique.…”

Section: Introductionmentioning

confidence: 99%

A Novel MPPT Technique Based on Combination between the Incremental Conductance and Hysteresis Control Applied in a Standalone PV System

Ouardi

Gadari

Mokhlis

et al. 2023

Eng

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A new Maximum Power Point Tracking (MPPT) method, consisting in combining the Incremental Conductance (INC) algorithm with the Hysteresis control, was developed and applied to a standalone photovoltaic (PV) system to generate the maximum power of the PV array. The INC allows one to search for the Maximum Power Point (MPP). The hysteresis improves the accuracy of tracking the MPP very fast even after severe changes in weather conditions and has no oscillations around the MPP. The five-level S-Packed U Cells (SPUC5) inverter is used to transform the produced DC voltage to AC voltage; it generates five-level output voltage with a small number of switches and only DC source voltage. The capacitors of the SPUC5 are controlled by the Pulse Width Modulation (PWM) in order to balance their voltages. The proposed PV system was established and trained in the MATLAB/Simulink environment under various irradiation conditions. A comparison between different MPPT methods, INC-PWM and INC-PI, was investigated in order to examine the effectiveness of the developed MPPT technique in particular, and of all the PV system components. The results of the simulation validate the effectiveness of the suggested MPPT algorithm as well as the used SPUC5 inverter.

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Level-Shifted PWM Techniques Applied to Flying Capacitor Multilevel Inverter

Cited by 18 publications

References 19 publications

Novel cascaded switched-diode five level inverter for renewable energy integration

Novel cascaded switched-diode five level inverter for renewable energy integration

An improved modulation technique suitable for a three level flying capacitor multilevel inverter

A Novel MPPT Technique Based on Combination between the Incremental Conductance and Hysteresis Control Applied in a Standalone PV System

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