Results 31 to 40 of about 10,685 (309)
A three-phase multilevel converter with multi-winding medium-frequency transformer
Gong-kuang zidonghua, 2014 In view of problems of unbalanced capacitor voltage, or big volume and high cost of phase-shifting transformer which provides DC power existed in traditional multilevel converter, the paper proposed a three-phase multilevel converter based on cascaded H ...
ZHANG Yulei, ZHANG Yuxiang, GUO Mi
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IEEE Access, 2020 In significant cases, the generated voltage needs to be step-up with high conversion ratio by using the DC-DC converter as per the requirement of the load. The drawbacks of traditional boost converter are it required high rating semiconductor devices and
Mahajan Sagar Bhaskar +5 more
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IEEE Access, 2021 The integration of a Z-source network with a modular multilevel converter (MMC) to provide voltage step-up function is proposed in this paper. The proposed Z-source modular multilevel converter (ZS-MMC) uses a Z-source network connected between the DC ...
Fatma A. Khera +2 more
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Impact of converter interface type on the protection requirements for DC aircraft power systems [PDF]
, 2012 The utilization of converter interfaces has the potential to significantly alter the protection system design requirements in future aircraft platforms.
Burt, Graeme +3 more
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Journal of Modern Power Systems and Clean Energy, 2017 This paper proposes a novel hybrid multilevel converter with DC fault-blocking capability, i.e., the neutral-point clamped hybrid multilevel converter (NHMC).
Xinyu YU +5 more
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Modular Multilevel Converters: Control and Applications [PDF]
Energies, 2017 This review article is mainly oriented to the control and applications of modular multilevel converters (MMC). The main topologies of the switching modules are presented, for normal operation and for the elimination of DC faults. Methods to keep the capacitor voltage balanced are included.
Fernando Martinez-Rodrigo +4 more
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Control of a Modular Multilevel Matrix Converter for Unified Power Flow Controller Applications
Energies, 2020 The modular multilevel matrix converter has been proposed as a suitable option for high power applications such as flexible AC transmission systems.
Alberto Duran +5 more
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Digitally-implemented naturally sampled PWM suitable for multilevel converter control [PDF]
, 2003 For dynamic closed loop control of a multilevel converter with a low pulse number (ratio of switching frequency to synthesized fundamental), natural sampled pulse-width modulation (PWM) is the best form of modulation.
Walker, Geoffrey R.
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Single-Phase Five-Level Multilevel Inverter Based on a Transistors Six-Pack Module
Energies, 2022 This article introduces a single-phase five-level multilevel inverter based on six switches and two transformers. The proposed converter requires a single dc input source with low voltage.
Flavio A. Garcia-Santiago +5 more
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VSC transmission system using flying capacitor multilevel converters and hybrid PWM control [PDF]
, 2007 A high-voltage direct current (HVDC) transmission system based on three-level flying capacitor (FC) multilevel converters with hybrid pulse-width modulation (PWM) is presented in this paper.
Agelidis, V.G., Xu, L.
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