Results 71 to 80 of about 7,480 (292)
Analysis of DC-Link capacitor losses in three-level neutral point clamped and cascaded H-Bridge voltage source inverters [PDF]
Loss estimation is a critical aspect of inverter design.The present work investigates the losses occurring in the DC-link capacitors of the three-phase three-level neutral point clamped and cascaded H-Bridge inverter topologies, by performing a harmonic ...
Sharkh, S. M. +2 more
core
Soft-Switched Hybrid-Modulation for an Isolated DC-Link-Capacitor-Less Pulsating-DC-Link Inverter [PDF]
, 2015 The main goal of this dissertation is to increase the performance of the capacitor-less high-frequency pulsating dc-link (HFPDCL) inverters suitable for renewable energy sources. The HFPDCL inverters are compact, small foot-printed, modular, and reliable
Arash Rahnamaee (7958267)
core
Advanced Functional Materials, EarlyView.The internal quality factor of tantalum superconducting resonators is significantly increased by ∼140% in the low photon regime by passivating their surfaces with a high‐quality alkene self‐assembled monolayer. Our methodology promises to enhance the performance of superconducting quantum circuits.
Harsh Gupta +6 more
wiley +1 more source
A Humidity-Dependent Lifetime Derating Factor for DC Film Capacitors [PDF]
, 2015 Film capacitors are widely assumed to have superior reliability performance than Aluminum electrolytic capacitors in DC-link design of power electronic converters.
Huai Wang +5 more
core +1 more source
Ambient‐Stable Transparent P‐Type CuI Transistors Via Room‐Temperature Pulsed Laser Deposition
Advanced Functional Materials, EarlyView.An in situ PLD fabricated AlOx${\rm AlO}_x$/CuI/AlOx${\rm AlO}_x$ sandwich structure enables stable CuI TFTs with a field‐effect mobility of 2.3 ±$\pm$ 0.7 cm2${\rm cm}^{2}$ V−1${\rm V}^{-1}$ s−1${\rm s}^{-1}$ and excellent ambient stability. Complementary inverters based on CuI:Rb and ZnO:Al exhibit rail‐to‐rail voltage transfer characteristics and an
Yang Chen +5 more
wiley +1 more source
World Electric Vehicle JournalThis paper presents a carrier waves phase shifting method to reduce the dc-link capacitor current for a dual three-phase permanent magnet synchronous motor drive system.
Deniz Şahin, Bülent Dağ
doaj +1 more source
Fault Diagnosis of DC Link Electrolytic Capacitors in Inverter
The Transactions of the Korean Institute of Power Electronics, 2013 Electrolytic capacitors used for smoothing DC link voltage is one of the major root causes of fault in power electronic system. The aging of aluminum electrolytic capacitors is expressed by the increase of their equivalent series resistance (ESR) and the reduction of their capacitance.
openaire +2 more sources
Investigations on Voltage Control of Stacked DC-link Series Capacitors with a Nine-Level Inverter for an Induction Motor Load [PDF]
, 2023 Multilevel Inverters offer several advantages over two-level inverters in applications involving medium voltage and high power levels. A variety of applications are now available for MLI technology, ranging from variable speed drives to high voltage ...
Debnath, Tutan
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Advanced Functional Materials, EarlyView.A single‐step laser annealing strategy is presented for dual‐gate a‐IGZO TFTs. The steep thermal gradient induces graded oxygen doping in the channel and simultaneous WOx removal at the contacts, enabling concurrent interface and contact engineering.
Sihyeon Kwon +9 more
wiley +1 more source
Energies, 2017 Direct current (DC)-link voltage ripple analysis is essential for determining harmonic noise and for DC-link capacitor design and selection in single-phase pulse-width modulation (PWM) inverters.
Marija Vujacic +3 more
doaj +1 more source