Results 81 to 90 of about 13,310 (293)
Analysis and Research of DC-link Ripple Current
机车电传动, 2016 Temperature rise of the capacitor played the key role for the DC-link capacitor life and using stability, while thetemperature rise depended on the ripple current.
WANG Shiping +4 more
doaj
IET Electric Power ApplicationsThe authors propose a current fluctuation reduction strategy based on optimal three‐space‐vector pulse‐width modulation (TSVPWM), which is used to improve the service‐life of the dc‐link electrolytic capacitors in two‐level three‐phase voltage‐source ...
Peihe Li +4 more
doaj +1 more source
IEEE AccessIn order to suppress the influence of the DC-link ripples in the multilevel inverters, a compensate-control combination method for the Packed U-cell (PUC) multilevel inverter to suppress DC-link ripples is proposed in this paper.
Liye Song +3 more
doaj +1 more source
Efficiency of super capacitor banks used in regenerative breaking in hybrid electric vehicles
, 2009 The aim of this project was to build a supercapacitor bank, dc to dc converter, and testing rig to perform efficiency testing for various configurations of the super capacitor bank against various hybrid electric vehicle regenerative braking profiles.
Napier, David
core
Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes
Advanced Functional Materials, EarlyView.Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita +6 more
wiley +1 more source
New leading/trailing edge modulation strategies for two-stage AC/DC PFC adapters to reduce DC-link capacitor ripple current [PDF]
, 2007 AC/DC adapters mostly employ two-stage topology: Power Factor Correction (PFC) pre-regulation stage followed by an isolated DC/DC converter stage. Low power AC/DC adapters require a small size to be competitive.
Sun, Jing
core
Advanced Functional Materials, EarlyView.First vacuum formed spherical triboelectric converter for 3D‐omnidirectional ultrasonic energy receiving, with configurable DC or pulse outputs for versatile applications. ABSTRACT Ultrasound‐driven triboelectric nanogenerators (UD‐TENGs) have emerged as promising ultrasonic energy converters for underwater and biomedical applications.
Yanqin Huang +12 more
wiley +1 more source
Analysis of dc-Link Voltage Switching Ripple in Three-Phase PWM Inverters
Energies, 2018 The three-phase voltage source inverter (VSI) is de facto standard in power conversion systems. To realize high power density systems, one of the items to be correctly addressed is the design and selection of the dc-link capacitor in relation to the ...
Marija Vujacic +3 more
doaj +1 more source
Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells
Advanced Functional Materials, EarlyView.ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf +4 more
wiley +1 more source
, 2014 The purpose of this work was to investigate a three-phase-grid connected power supply using small DC link capacitor for electrolyser application. The hydrogen generation system requires low voltage and high current power supply. Thus the structure of the
Lajos Torok +5 more
core +1 more source