Results 61 to 70 of about 1,685,785 (203)

Unlocking Low‐Melting‐Point and High‐Conductivity Molten Salts via High‐Entropy Strategy with Demonstration in Thermal Batteries

Advanced Science, EarlyView.
A high‐entropy strategy is developed to break the trade‐off between low melting point and high ionic conductivity in molten salt electrolytes. By incorporating CsBr and LiF into the LiCl‐LiBr‐KBr system, the quinary LiF‐LiCl‐LiBr‐KBr‐CsBr electrolyte achieves a record‐low melting point of 229.5°C while maintaining a high conductivity of 1.19 S cm−1 at ...
Binchao Shi, Ting Sun, Fushan Yu, Yi Zhang, Gaowu Wang, Ting Quan, Yan‐li Zhu   +6 more
wiley   +1 more source

Improvement of Pulse-Width Modulation Algorithm for Thermal Plant Control

, 2017
The results of the pulse-width modulation algorithms analysis are presented in the paper. The following two algorithms are analyzed: pulse-width modulator (PWM) based on the sawtooth waveform generator and PWM based on an integrator and a switch element.
Sviatoslav Klos, Sergiy Kril, Volodymyr Savytskyi, Roman Fedoryshyn   +3 more
core   +1 more source

Space Vector Based High Performance Discontinuous Pulse Width Modulation Algorithms for VSI Fed AC Drive [PDF]

, 2016
This paper presents Space Vector based high performance Discontinuous Pulse width modulation (DPWM) algorithms for VSI fed Induction motor drive. To avoid the complexity due to angle calculation and sector identification involved in Conventional space ...
C.Srinivasa Rao, M.Nayeemuddin
core   +1 more source

Sublattice‐Resolved Magnetoelastic Coupling and Opposing Pressure Responses in the Frustrated Magnetocaloric GdMn2O5

Advanced Science, EarlyView.
In GdMn2O5, sublattice‐resolved EXAFS and diffraction analysis reveal pronounced spin‐phonon coupling and an unexpected opposing pressure response: the Mn‐driven Néel temperature slightly decreases while the Gd‐sublattice ordering temperature rises under pressures up to 0.86 GPa.
Romualdo S. Silva Jr., João E. Rodrigues, Javier Gainza, Henrik L. Andersen, Federico Serrano‐Sánchez, Neven Biskup, Olivier Mathon, Norbert M. Nemes, José L. Martínez, José A. Alonso   +9 more
wiley   +1 more source

Phase accumulated carrier pulse width modulation

, 2015
An alternative approach to digital PWM generation uses an accumulator rather than a counter to generate the carrier. This offers several advantages.
Gerard F. Ledwich, Broadmeadow, M.A.H., Mark A. H. Broadmeadow, Ledwich, G.F., Geoffrey R. Walker, Walker, G.R.   +5 more
core   +1 more source

Pulse width Modulation Command Systems Used for the Optimization of Three Phase Inverters

Advances in Electrical and Computer Engineering, 2009
This paper deals with a novel pulse width modulation (PWM) switching strategy for a voltage source inverter through carrier modification. The proposed discontinuous sine carrier PWM (DPWM1) method, which uses two modified sine waves, has a better ...
LUCANU, M., TIGAERU, L., URSARU, O., AGHION, C.   +3 more
doaj   +1 more source

Design of Control System for 5MW Medium Voltage  Direct-Driven Wind Power Converter

Journal of Harbin University of Science and Technology, 2018
The diode threelevel neutralpointclamped (3LNPC) converter with full power is a promising multilevel topology in the application of wind power generation system.
DENG Xiao-xiang, DAI Chao-fan
doaj   +1 more source

Printing‐Assisted Integration of Thermal, Fluidic and Electrical Components in Implants for Focal Brain Cooling

Advanced Science, EarlyView.
Extrusion‐based 3D printing of silicones and discrete electronic components are combined to create cortical implants for rodents that integrate thermal neuromodulation and electrical recording. Linked to an autonomous auxiliary driver unit, the system enables rapid, stable and localized hypothermia alongside ECoG recording.
Spencer Ryan Moore, Naomi King, Aruã Clayton Da Silva, Clare Howarth, Jason Berwick, Thomas E. Paterson, Ivan R. Minev   +6 more
wiley   +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

Optimization of Power Loss Reduction in IGBTbased Three-Phase Rectifiers using Discontinuous Pulse Width Modulation Method: A SimulationBased Analysis with QSpice and Fuji IGBT Simulator

Jurnal Rekayasa Elektrika
The increasing demand for electricity supply is evident across various modern industrial sectors. Electrification advancements in the transportation industry aim to address environmental and energy issues and continue to evolve.
Rio Pratama, Syaiful Alam, Noer Soedjarwanto, E . Komalasari   +3 more
doaj   +1 more source