Results 61 to 70 of about 9,769 (296)
A predictive control with flying capacitor balancing of a multicell active power filter [PDF]
, 2008 Unlike traditional inverters, multicell inverters have the following advantages: lower switching frequency, high number of output levels, and less voltage constraints on the insulated-gate bipolar transistors.
Defaÿ, François +2 more
core +1 more source
Advanced Functional Materials, EarlyView.A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He +8 more
wiley +1 more source
Performance analysis and control of a novel 7‐level active neutral point clamped (ANPC) topology
IET Power Electronics, 2023 This paper introduces a novel 7‐level active neutral‐point clamped (ANPC) switched capacitor multilevel inverter (SCMLI) with voltage‐boosting capabilities. The proposed converter can produce seven levels and a voltage boosting of 1.5 times with a single
Mohammad Zaid +6 more
doaj +1 more source
Dual-transformer-based hybrid resonant three-level ZCS converter
Energy Reports, 2021 A hybrid resonant three-level converter comprised of dual transformers is proposed in this paper, which is suitable for the application of distributed photovoltaic power accessing the medium voltage dc distribution network.
Syed Waqar Azeem +4 more
doaj +1 more source
Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]
, 2018 Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P. +4 more
core +1 more source
Direct Power Control of Neutral-Point-Clamped PWM Converter
IEEJ Transactions on Industry Applications, 2004 This paper describes direct power control of a neutral-point-clamped PWM converter. The key of this strategy is a direct selection of switching modes on the basis of instantaneous control errors of active and reactive power. In addition, this paper discusses neutral point voltage control and PWM pattern equalization schemes.
Toshihiko Noguchi, Akira Sato
openaire +2 more sources
Advanced Functional Materials, EarlyView.Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog +3 more
wiley +1 more source
THREE-LEVEL INDIRECT MATRIX CONVERTER WITH TWO SERIES Z-SOURCE NETWORKS [PDF]
Carpathian Journal of Electrical Engineering, 2019 In previous articles, the concept of series Z-source network has been extended to conventional indirect matrix converter to raise the voltage gain to unity and beyond.
Francis Boafo EFFAH +6 more
doaj
Applied Sciences, 2022 In this article, a three-phase modular multilevel converter (MMC) with three-level neutral point clamped converter (NPC) sub-modules (SMs) along with the placement of transformers in place of arm inductors is proposed for PV grid integration. Compared to
Suresh Mikkili +3 more
doaj +1 more source
Imposed Switching Frequency Direct Torque Control of Induction Machine Using Five Level Flying Capacitors Inverter [PDF]
, 2019 The paper proposes a new control structure for sensorless induction motor drive based on a five-level voltage source inverter (VSI). The output voltages of the five-level VSI can be represented by nine groups.
Allaoui, Tayeb +4 more
core +2 more sources