Due to cutting-edge innovations in industry and academia, research is more centered around multilevel inverters (MLIs), which play a significant role different high/medium voltage high-power applications when contrasted with traditional inverters. Relative analysis of the reduced DC source count switch inverter topologies highlight its benefits, include control complexity, count, reliability, e...

Within the last decade, there have been rapid changes in technology. Power electronics have played a vital role in the technological developments. Inverters are extensively used in power electronic applications for converting DC (Direct Current) to AC (Alternating current). The applications of inverters range from uninterrupted power supplies used in home appliances control to HVDC power transm...

The single-phase transformerless grid-connected photovoltaic (PV) systems, mainly the low-power single-phase systems, require high efficiency, small size, lightweight, and low-cost grid-connected inverters. However, problems such as leakage current, the DC current injection and safety issues are incorporated with transformerless grid-connected PV inverters. Besides, the new standards such as Lo...

Parallel connection of inverter modules is a solution to increase reliability, efficiency and redundancy of inverters in Micro-Grid system. Proper load sharing among parallel inverters is a key point. The circulating current among the inverters can greatly reduce the efficiency or even cause instability of the system. In this paper, a control strategy for improving the load sharing performance ...

In this paper, the performance variations of SiC MOSFET-based voltage and current source inverters under gate oxide degradation are studied. It is confirmed that turn-on turn-off delays MOSFETs change significantly by high electric field stress, which accelerates degradation. Variations in switching devices extend or reduce duty error inverters. The inverter due to changes caused analyzed throu...

Power electronic converters, especially DC/AC Sinusoidal Pulse Width Modulation inverters have been extending their range of use in industry because of their numerous advantages. They typically synthesize the stair –case voltage waveform (from several dc sources) which has reduced harmonic content. This paper describes the development of design, modelling and simulation of the proposed seven le...

This paper presents a novel approach for the connection of renewable energy sources to the utility grid. Due to the increasing power capability of the available generation systems, a three-level three-phase neutral-point-clamped voltage-source inverter is selected as the heart of the interfacing system. Solar Energy is one of the favorable renewable energy resources and the multilevel inverter ...

although lcl filters are used widely in the grid connected inverters to reduce high-orderharmonics, such a system increases system order and therefore sustainable design of closed-loopcontroller system will be complicated. recently, the single-loop control strategy has beensuggested for l or lc filter based grid-connected inverters. however, the use of single-loopcontrol directly in lcl filter-...

In three-phase inverters used in uninterruptible power supplies (UPSs), three-limb inductors and three-limb transformers are commonly used in consideration of cost and size. However, magnetic coupling exists between the three phases of the inverter, which can result in complex models. When instantaneous feedback control strategies are introduced to achieve high quality output waveforms, the tra...