Results 191 to 200 of about 922 (227)
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Multilevel inverter by cascading industrial VSI
IEEE Transactions on Industrial Electronics, 2002In this paper the modularity concept applied to medium-voltage adjustable speed drives is addressed. First, the single-phase cascaded voltage-source inverter that uses series connection of IGBT H-bridge modules with isolated dc-buses is presented. Next, a novel three-phase cascaded voltage-source inverter that uses three IGBT triphase inverter modules ...
Teodorescu, Remus +4 more
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Electrical Engineering (ICEE), Iranian Conference on, 2018
Multilevel inverters are widely used in various applications due to their interesting features. They can be connected to the grid as a STATCOM to improve grid power quality and voltage control. In this paper, a distributed STATCOM (DSTATCOM) is provided based on cross-switched multilevel inverter which is connected to a low voltage distribution system.
Mohammad Farhadi-Kangarlu +1 more
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Multilevel inverters are widely used in various applications due to their interesting features. They can be connected to the grid as a STATCOM to improve grid power quality and voltage control. In this paper, a distributed STATCOM (DSTATCOM) is provided based on cross-switched multilevel inverter which is connected to a low voltage distribution system.
Mohammad Farhadi-Kangarlu +1 more
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Overdistention operation of cascaded multilevel inverters
IEEE Transactions on Industry Applications, 2003Established research has shown that cascaded multilevel inverters can provide more voltage vectors per number of active semiconductors compared to typical multilevel converters. This feature is significant for increasing the drive performance as well as reducing the drive complexity and losses.
X. Kou, K.A. Corzine, M.W. Wielebski
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Realization of cascaded multilevel inverter
2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), 2017In this paper, a cascaded multilevel inverter is implemented for resistive as well as RL load. Working of Cascaded multilevel inverter is studied for various levels of voltages by implementing proper switching. To verify the operation of the proposed inverter, simulation is completed using MATLAB for various levels of outputs such as nine, eleven ...
S. Ponkumar +3 more
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Modified hybrid symmetrical multilevel inverter
2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2012Even more the needs of efficiency and productivity are required in industrial processes. Medium and high voltage inverter topologies are used in high scale industrial processes to achieve these goals. This work presents two variants of a modified hybrid symmetrical multilevel inverter topology based in [8] using Half Bridge commutation cells, proper to
Daniel Korbes +2 more
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Control of novel multilevel inverter
2015 IEEE Students Conference on Engineering and Systems (SCES), 2015The focus of this paper is to develop and implement the new topology of multilevel inverter and study its performance The developed new MLI topology uses less number of switches and hence it is simple in control, cost effective and efficient. The proposed model is designed for 11-level and a prototype laboratory model is implemented.
Manuj Rai, Ramesh Kumar Tripathi
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Multilevel inverter as var-compensator
2013 IEEE XXXIII International Scientific Conference Electronics and Nanotechnology (ELNANO), 2013Multilevel inverter consists of base cells that have the same structure as active power line conditioner. This allows to use the inverter cells as the VAR-compensator in uninterruptible power supply systems. The advantage of this system is increasing the allowable current range that can be correctly compensated.
Vladimir Bezhenar +3 more
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Optimizing losses in multilevel inverters
IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, 2003Losses generation in a multilevel inverter leg are analyzed in this paper for N=2, 3, 4, and 5 levels. An N-level inverter is modeled as the superposition of N-1 elementary buck converters to simplify the losses analysis. The results of the analysis show that the efficiency of a multilevel inverter can increase when the number of levels increases if an
H. Valderrama-Blavi +4 more
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2016
There are two hotly researched Z-source/quasi-Z-source (ZS/qZS) multilevel inverters: the ZS/qZS neutral-point-clamped (NPC) inverter and ZS/qZS cascaded multilevel inverter (CMI). The ZS/qZS concept, integrating with those traditional multilevel inverters, inherits the merits of both topologies with improved inverter reliability due to short-circuit ...
Loh, Poh Chiang +3 more
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There are two hotly researched Z-source/quasi-Z-source (ZS/qZS) multilevel inverters: the ZS/qZS neutral-point-clamped (NPC) inverter and ZS/qZS cascaded multilevel inverter (CMI). The ZS/qZS concept, integrating with those traditional multilevel inverters, inherits the merits of both topologies with improved inverter reliability due to short-circuit ...
Loh, Poh Chiang +3 more
openaire +1 more source