Results 41 to 50 of about 56,128 (237)
Optimal Hybrid Pulse Width Modulation for Three-Phase Inverters in Electric Propulsion Ships
MachinesGlobal interest in environmentally friendly ships has surged as a result of greenhouse gas reduction policies and the demand for carbon neutrality. Despite growing demand for electric propulsion systems, there is a lack of research and development on ...
Chan Roh +5 more
doaj +1 more source
Design and Analysis of Three-Phase Three-Level PWM Inverter [PDF]
, 2010 Design of three-phase three level PWM inverter and analysis of the output current harmonics are presented in this paper. The three-level inverter is designed to supply three-phase load and it is controlled by FPGA under several modulation techniques ...
Dahono, Pekik Argo
core
Online control of AC/AC converter based SHEPWM technique [PDF]
, 2014 Conventional online control of AC/AC converter controlled by the selective harmonic elimination pulse width modulation technique (SHEPWM) is based on storing the offline calculated switching angle values in a form of lookup table.
Darwish, M, Hashem, GM
core +1 more source
Advanced Materials, EarlyView.Heptazine‐assisted MR‐TADF emitters enable narrowband yellow emission with high efficiency at high luminance in solution‐processed OLEDs. In doped films, HAP‐3CzBN achieves a record‐fast kRISC of 1.19 × 106 s−1. The optimized HAP‐3CzBN devices deliver 15.5% EQEmax with negligible roll‐off at 1000 cd m−2, 11.2% at 10,000 cd m−2, and a benchmark 20.3 ...
Changfeng Si +5 more
wiley +1 more source
IET Power Electronics, EarlyView., 2023 This article presents a dual‐source novel nine‐level inverter (DSN2LI) featuring minimal devices. Utilizing eight switches, which include 2 bidirectional switching devices and 2 uneven dc links, the proposed DSN2LI generates nine levels. The DSN2LI employs the utilization of trinary geometric DC links.
Arun Vijayakumar +3 more
wiley +1 more source
Optimization strategy of switching modulation of mine—used high—voltage frequency converter
Gong-kuang zidonghua, 2018 For problems of high switching loss and power quality distortion when carrier modulation PWM control method were used in mine—used high—voltage frequency converter.
LI Zhaoping +5 more
doaj +1 more source
IEEE Access, 2021 Compared with the traditional dual active bridge (DAB) converter, the push-pull DAB converter can reduce the number of switching devices and is suited for low voltage applications.
Asad Ali, Yuefeng Liao
doaj +1 more source
Analysis of Output Current Ripple of Three-phase PWM Inverter under Discontinuous Modulation Techniques [PDF]
, 2010 In this paper, an analysis of output current ripple of three-phase PWM inverters with discontinuous modulation is presented. The analytical expressions for discontinuous modulation injection signal are derived.
Dahono, Pekik Argo
core
A simple maximum power point tracking based control strategy applied to a variable speed squirrel cage induction generator [PDF]
, 2012 This paper presents a comprehensive modelling and control study of a variable speed wind energy conversion system based on a squirrel-cage induction generator (SCIG).
Allali, A. +4 more
core +1 more source
Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors
Advanced Materials, EarlyView.A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi +11 more
wiley +1 more source