Design of 5-level reduced switches count Η-bridge multilevel inverter

Kahwa, Almachius; Obara, Hidemine; Fujimoto, Yasutaka

doi:10.1109/amc.2019.8371060

Cited by 43 publications

(12 citation statements)

References 9 publications

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“…However, the three capacitors need careful balancing to ensure right operation of the inverter, and it generates only seven levels. Paper [12] introduces a modified five level (DC-MLI), the design was achieved by adding two switches to the traditional three level DC-MLI, which provided the ability to utilize the voltage of the source in addition to the DC bus capacitors voltages, the design uses a single source and six unidirectional switches. However, the number of levels is considered to be low.…”

Section: Introductionmentioning

confidence: 99%

17 Level Hybrid Diode Clamped Inverter With Reduced Number of Components

Alsumady,

Jaber,

Nusserat

2023

J. Electron. Electric. Eng.

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Multilevel inverters (MLIs) are gaining more interest recently in medium to high power applications. The main problem with various MLI topologies is that they require a large number of switching devices and DC voltage sources while producing a small number of voltage levels. Which results in bulky inverters with high cost and high output voltage/current total harmonic distortion (THD). This paper introduces a new novel asymmetrical 17-level MLI design using two DC voltage sources and a reduced number of switches. This was achieved by combining a voltage summing and subtracting circuit with a modified diode clamped MLI (DC-MLI), which divides the voltage by two. Thus, generating more voltage levels. nearest level control (NLC) is used to produce the switching signals at a switching frequency of 50Hz. The design is tested and simulated using MATLAB/Simulink, the output voltage THD is kept around 5.7%. The obtained results are compared with other recent 17-level topologies, showing that a good improvement is achieved.

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Section: Introductionmentioning

confidence: 99%

17 Level Hybrid Diode Clamped Inverter With Reduced Number of Components

Alsumady,

Jaber,

Nusserat

2023

J. Electron. Electric. Eng.

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“…Fig. 1(g) shows a 5-level reduced switches converter, wherein the second leg is in parallel with the middle switches on 3L-NPC in the first leg [13], [14]. All switches are modulated at the same switching frequency.…”

Section: Introductionmentioning

confidence: 99%

Operation and Efficiency Analysis of a Five-Level Single-Phase Hybrid Si/SiC Active Neutral Point Clamped Converter

Najjar

Shahparasti

Kouchaki³

et al. 2022

IEEE J. Emerg. Sel. Topics Power Electron.

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“…These converters can be applicable in medium and high-power applications. In the PV systems, the multilevel converters give a proper solution for quality renewable energy generation [2]. The classical PV converters include a feature named grid frequency transformer, and this component is hefty and costly between the electrical grid and converter [3].…”

Section: Introductionmentioning

confidence: 99%

A streamlined 17-level cascaded H-bridge multilevel converter with solar PV integration

et al. 2021

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The quest for a green electrical power system has increased the use of renewable energy resources and power electronic converters in the existing power system. These power electronic converters, however, are a major cause of harmonics and result in the degradation of power quality. In the last two decades, researchers have proposed various designs of multilevel converters to minimize these harmonic distortions, however, a comprehensive solution for stand-alone solar photovoltaic (PV) systems with low total harmonic distortion (THD) is still missing in the present body of knowledge. This paper proposes a single-phase 17-level cascaded H-bridge multilevel converter (CHMC) model for a stand-alone system using solar PV arrays. The proposed model employs eight different flexible PV arrays that can be replaced with DC voltage sources when required to meet the load demand. The proposed model does not include any capacitor and filter thus saving a lot of cost in the overall system. The model has been implemented in the Simulink environment using a model-based design approach. The simulation results show that the proposed model has reduced the THD to almost 7% as compared to the existing models. The cost comparison of the proposed converter also proved its economic benefit over other types.

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Design of 5-level reduced switches count Η-bridge multilevel inverter

Cited by 43 publications

References 9 publications

17 Level Hybrid Diode Clamped Inverter With Reduced Number of Components

17 Level Hybrid Diode Clamped Inverter With Reduced Number of Components

Operation and Efficiency Analysis of a Five-Level Single-Phase Hybrid Si/SiC Active Neutral Point Clamped Converter

A streamlined 17-level cascaded H-bridge multilevel converter with solar PV integration

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