Results 41 to 50 of about 6,055 (267)

Investigate on a Simplified Multi-Port Interline DC Power Flow Controller and Its Control Strategy

Energies, 2019
A DC power flow controller (DCPFC) can help to facilitate power flow routing in the multi-terminal high-voltage direct current (HVDC) transmission system.
Wen Wu, Xuezhi Wu, Long Jing, Jingyuan Yin   +3 more
doaj   +1 more source

Current Harmonic Mitigation Using a Multi-Vector Solution for MPC in Six-Phase Electric Drives

IEEE Access, 2021
Multiphase machines offer some interesting features to develop more-competitive electric drives. However, the control complexity increases due to the higher number of freedom degrees. Specifically, the regulation of secondary currents becomes critical to
Angel Gonzalez-Prieto, Ignacio Gonzalez-Prieto, Mario J. Duran, Juan Jose Aciego, Pedro Salas-Biedma   +4 more
doaj   +1 more source

Harmonic quality of multilevel cascade inverters with random carrier phase pulse width modulation

, 2004
The output harmonic quality of N series connected full-bridge dc-ac inverters is investigated. The inverters are pulse width modulated using a common reference signal\ud but randomly phased carrier signals.
Sernia, P. C., Sernia, P.C., Sernia, Paul, P.C. Sernia, G.R. Walker, Walker, G. R., Walker, G.R., Walker, Geoffrey R.   +7 more
core   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Analysis and Control of Switching Circulating Currents in Multi-Module Parallel SPWM Converters

IEEE Access, 2018
High-frequency switching circulating currents are inevitable in multi-module parallel connected converters, which will result in increased power losses and declined system stability, reliability and control precision.
Sheng Xu, Wu Cao, Kangli Liu, Shunyu Wang, Jianfeng Zhao   +4 more
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Cone-structured seven-level boost inverter topology for improvising power quality using online monitoring controller scheme for DSTATCOM application

Frontiers in Energy Research, 2022
In this article, a seven-level triple-time voltage-boosting topology (8S7L-TTB) is proposed, which has eight switches as the minimum. This topology is used as DSTATCOM to eliminate power-quality issues.
K. Selvakumar, R. Palanisamy, M. Kannan, S. Selvarajan, Ali Selim, Hossam Kotb, Mohit Bajaj, Salah Kamel   +7 more
doaj   +1 more source

Three-Phase Symmetric Cascading Z-Source Seven Levels Multilevel Inverter Excited by Multi Carrier Sinusoidal Pulse Width Modulation Scheme

International Journal of Innovative Technology and Exploring Engineering, 2019
The Multilevel Z sources Inverter have been documented as attractive topologies used for elevated voltage adaptation. As the digit of levels improved, the synthesized set of steps output waveform have many ladder, imminent the preferred sine waveform but the major weakness of MLI be its amplitude of ac output voltage is imperfect to DC input sources ...
Rajnish Kumar Sharma, G. Irusapparajan, D. Periyaazhagar   +2 more
openaire   +1 more source

Pulse-Width Modulation of Z-Source Inverters

, 2005
Z-Source inverters have recently been proposed as an alternative power conversion concept as they have both voltage buck and boost capabilities. These inverters use a unique impedance network, coupled between the power source and converter circuit, to ...
Chua, G.T., Vilathgamuwa, Mahinda, Loh, P.C., Lai, Y.S., Li, Y.   +4 more
core   +1 more source

Receptor‐Free Identification of Toxic Gases Enabled by Hygroscopic Aqueous Salt Films

Advanced Functional Materials, EarlyView.
Water as a gas sensor coating sounds impossible—until it stops evaporating. Here, hygroscopic salt solutions (LiCl, LiBr, H3PO4) form non‐drying aqueous films on CNT chemiresistors under ambient air. Gases partition into these liquid layers, sometimes transforming into water, and generate salt‐specific resistance fingerprints across a four‐channel ...
Seongwoo Lee, Yun‐Tae Kim, Hwarang Choi, Sanghwan Park, Seongyeop Lim, Chang Young Lee   +5 more
wiley   +1 more source