Results 111 to 120 of about 17,177,900 (326)

Single Phase Sine Wave PWM Inverter Circuit Simulation And The Design Of Filter Based On Matlab

open access: yesMATEC Web of Conferences, 2018
Inverter circuit is the most important application of PWM control technology. This paper mainly discusses the unipolar PWM ( pulse width modulation ) control mode of single-phase bridge inverter circuit, and uses MATLAB visual simulation tool Simulink to
Yanshu Niu
doaj   +1 more source

Synergistic Enhancement of Modified‐PVDF Humidity Sensitivity via Chemical Adsorption‐Ionic Conductivity and its Application in Intelligent Powered Air‐Purifying Respirator

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He   +9 more
wiley   +1 more source

Digital PWM Based on Single-chip Microcomputer

open access: yesGong-kuang zidonghua, 2011
In view of resource problem caused by using two timers/counters of single-chip microcomputer to realize PWM, the paper proposed a method of using single timer/counter to realize PWM.
DENG Jing-jing, NIU Jing, SHI Yu-fang
doaj  

Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle

open access: yesIEEE Access
The high charging efficiency of LLC resonant converters over a very wide range of load conditions in electric vehicle charging systems has long been a research hotspot.
Yuntao Yue   +4 more
doaj   +1 more source

Boundary-mode operation of the boost converter for thermoelectric generator maximum power tracking [PDF]

open access: yes, 2014
This article has been made available through the Brunel Open Access Publishing Fund.Performance-favourable and noteworthy characteristics of the Boost converter are reported, when the latter operates in Maximum Power Tracking (MPT) mode, while fed from a
Theodoridis, M
core  

Optimized Dual ANN Control Technique for Efficient Energy Management System (EMS) of Microgrid

open access: yesEnergy Science &Engineering, EarlyView.
Proposed methodology. ABSTRACT The escalating global energy demand necessitates a shift towards sustainable and environmentally friendly alternatives. While renewable energy sources like solar and wind energy offer promising solutions, their intermittent nature poses significant challenges for grid integration.
Bin Li   +5 more
wiley   +1 more source

Optimization of Energy Efficiency in Photovoltaic Water Pumping Systems Using Neural Networks

open access: yesEnergy Science &Engineering, EarlyView.
This study investigates an optimal control strategy for a photovoltaic (PV) water pumping system aimed at improving efficiency and autonomy in off‐grid applications. The system uses an induction motor with direct torque control and compares three maximum power point tracking (MPPT) techniques: neural network–based MPPT, Incremental Conductance (IC ...
Sihem Ghoudelbourk   +3 more
wiley   +1 more source

Application of Sliding Mode Variable Structure in Direct Power Control for PWM Rectifier

open access: yesKongzhi Yu Xinxi Jishu, 2015
Based on the instantaneous power theory, it deduced mathematical model of active and reactive power for three-phase PWM rectifier in two-phase stationary coordinate system, and proposed sliding mode variable structure control (SMVSC) strategy to achieve ...
XIE Dan, XIAO Shenping, CHEN Jielian
doaj  

Expression of interleukin 2 receptors on activated human B cells. [PDF]

open access: yes, 1984
Using anti-Tac, a monoclonal anti-interleukin 2 (IL-2) receptor antibody, we have explored the possibility that certain activated B cells display receptors for IL-2.
Bongiovanni, KF   +8 more
core  

Mechanism and Control Analysis of Synchronous Frequency Resonance in Distributed Power Generation System Connected to Grid

open access: yesEnergy Science &Engineering, EarlyView.
Small‐signal modeling reveals that insufficient system damping positions conjugate poles near the imaginary axis, fundamentally explaining the SFR mechanism. A virtual resistance control is consequently proposed to damp the resonance and effectively suppress SFR, which is validated through Hardware‐in‐the‐Loop experiments.
Yujie Gu   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy