review · Frontiers in Energy Research
Classical multilevel inverters (MLIs) are valued in industry and academia for their reduced Total Harmonic Distortion and high power conversion efficiency. However, these traditional designs often require many components, leading to high costs and complex implementation, particularly as the number of output levels increases. Furthermore, MLIs using flying capacitors can suffer from voltage balancing problems and high inrush currents. To overcome these limitations, researchers are developing reduced component count (RCC) or reduced switch count (RSC) and hybrid MLI topologies. These newer designs aim to maintain high power quality while significantly lowering costs and complexity. This paper provides a structural review of these recently proposed RCC and hybrid MLI topologies, evaluating their advantages and disadvantages, identifying current challenges and future opportunities, and suggesting areas for further research and development.
Improving multilevel inverters is crucial for more efficient and cost-effective power conversion systems. By reducing component count and complexity, these technologies can make high-quality power electronics more accessible and reliable for various industrial and academic applications, contributing to better energy management and system performance.
This research focuses on foundational improvements in power electronics, specifically multilevel inverters. The aim is to enable more cost-effective and less complex power conversion systems with high power quality. Potential users include industries requiring efficient power management, such as renewable energy, electric vehicles, and industrial drives. As a review paper, it represents early-stage research, guiding future development rather than offering a direct product.
AI-generated from the published abstract. Always read the original work before citing.
Classical multilevel inverter (MLI) topologies have gained widespread interest in industry and academia because of the improved qualities they offer over their two-level counterparts. MLIs are characterized by reduced Total Harmonic Distortion (THD) and high power conversion efficiency. Classical MLI topologies, however, are not without drawbacks; generally, they require many components as the number of output waveform levels is increased, resulting in high cost and complex implementation. Furthermore, MLIs based on flying capacitors have issues with capacitor voltage balancing and high inrush currents. As a result, this has prompted researchers to develop reduced component count (RCC) or reduced switch count (RSC) and hybrid topologies to achieve high power quality, but at reduced cost and complexity in comparison to classical MLI topologies. This article evaluates the merits and demerits of recently proposed reduced switch count and hybrid topologies, identifies challenges and opportunities, and proposes further research and development for the improvement of multilevel inverters. This review paper will be helpful to those conducting research in the field of MLI technology.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.3389/fenrg.2024.1396149
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
