A New Family of 7-Level Boost Active Neutral Point Clamped Inverter

The use of multi-level inverter (MLI) technologies in high-power, medium-voltage energy regulation has been more popular in recent years. Despite the fact that the multilayer inverter has a lot of benefits, it has certain disadvantages in the layer of higher levels due to the enormous number of semiconductor switches that it employs in its construction. This may result in the inverter being of a huge size and costing a lot of money, as well as a significant rise in losses. As a result, the new MLI is suggested to minimize the number of switches in order to alleviate these challenges. This article describes a cascaded multilevel inverter with lower devices. The suggested cascaded multilevel inverter is intended for use in minimizing total harmonic distortion (THD), as shown in MATLAB/Simulink by the graph. Multilevel inverters benefit from the switching pattern of semiconductor switches, which may be used to improve their overall performance. This approach lowers the switching loss while simultaneously increasing the efficiency. In order to validate the suggested approach, simulations are carried out using the MATLAB/Simulink programming environment.

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“…Figure 1 depicts the conventional cascade bridge MLI topology that is commonly used [22]. The output voltage level of this inverter is:…”

Section: Research Methods 21 Conventional Cascade Bridge MLI Topologymentioning

confidence: 99%

“…The best operation of most electrical applications is ensured by using a sinusoidal waveform supply [19]- [21]. With an increase in the number of inverter levels, the output voltage becomes more similar to a sinusoidal waveform, hence lowering the THD [22], [23]. When compared to the hard-switched two-level ISSN: 2302-9285 …”

Section: Introductionmentioning

confidence: 99%

A cascade multi-level inverter topology with reduced switches and higher efficiency

Al-Atbee

Abdulhassan

2023

Bulletin EEI

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“…Figure 3 indicates how multilevel inverters have a wide variety of uses in the emerging field of renewable energy, and Figure 4 exhibits the MLI-based system integration of various renewable energy sources being employed and discussed [109][110][111][112][113]. An MLI is selected for medium-and high-power applications based on its capability to generate voltage waveforms of superior quality while functioning at a low switching frequency [104][105][106][107][108]. Figure 3 indicates how multilevel inverters have a wide variety of uses in the emerging field of renewable energy, and Figure 4 exhibits the MLI-based system integration of various renewable energy sources being employed and discussed [109][110][111][112][113].…”

Section: Grid-connected Solar Photovoltaic Systemmentioning

confidence: 99%

A Review of Multilevel Inverter Topologies for Grid-Connected Sustainable Solar Photovoltaic Systems

Nyamathulla,

Chittathuru

2023

Sustainability

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Solar energy is one of the most suggested sustainable energy sources due to its availability in nature, developments in power electronics, and global environmental concerns. A solar photovoltaic system is one example of a grid-connected application using multilevel inverters (MLIs). In grid-connected PV systems, the inverter’s design must be carefully considered to improve efficiency. The switched capacitor (SC) MLI is an appealing inverter over its alternatives for a variety of applications due to its inductor-less or transformer-less operation, enhanced voltage output, improved voltage regulation inside the capacitor itself, low cost, reduced circuit components, small size, and less electromagnetic interference. The reduced component counts are required to enhance efficiency, to increase power density, and to minimize device stress. This review presents a thorough analysis of MLIs and a classification of the existing MLI topologies, along with their merits and demerits. It also provides a detailed survey of reduced switch count multilevel inverter (RSC-MLI) topologies, including their designs, typical features, limitations, and criteria for selection. This paper also covers the survey of SC-MLI topologies with a qualitative assessment to aid in the direction of future research. Finally, this review will help engineers and researchers by providing a detailed look at the total number of power semiconductor switches, DC sources, passive elements, total standing voltage, reliability analysis, applications, challenges, and recommendations.

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“…Generating 7L output voltage with full dc-link utilization and using eight power switches are two main merits of this topology. Having taken the same technique into account, Mhiesan et al [148] have proposed another version of 7L mid-point-clamped inverter, as well, while additional four-quadrant power switches are used in its structure. Alternatively, Wu et al [154] integrated SPSC Unit-II into the conventional ANPC-based MLIs.…”

Section: E Hybrid Mlismentioning

confidence: 99%

Switched-Capacitor Multilevel Inverters: A Comprehensive Review

Barzegarkhoo

Forouzesh

Lee

et al. 2022

IEEE Trans. Power Electron.

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104

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Multilevel inverters (MLIs) with switched-capacitor (SC) units have been a widely rehearsed research topic in power electronics since the last decade. Inductorless/transformerless operation with voltage-boosting feature and inherent capacitor self-voltage balancing performance with a reduced electromagnetic interference make the SC-MLI an attractive converter over the other available counterparts for various applications. There have been many developed SC-MLI structures recently put forward, where different basic switching techniques are used to generate multiple (discrete) output voltage levels. In general, the priority of the topological development is motivated by the number of output voltage levels, overall voltage gain, and full dc-link voltage utilization, while reducing the component counts and stress on devices for better efficiency and power density. To facilitate the direction of future research in SC-MLIs, this article presents a comprehensive review, critical analysis, and categorization of the existing topologies. Common fundamental units are generalized and summarized with their merits and demerits. Ultimately, major challenges and research directions are outlined leading to the future technology roadmap for more practical applications.

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A New Family of 7-Level Boost Active Neutral Point Clamped Inverter

Cited by 6 publications

References 15 publications

A cascade multi-level inverter topology with reduced switches and higher efficiency

A cascade multi-level inverter topology with reduced switches and higher efficiency

A Review of Multilevel Inverter Topologies for Grid-Connected Sustainable Solar Photovoltaic Systems

Switched-Capacitor Multilevel Inverters: A Comprehensive Review

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