Results 51 to 60 of about 55,237 (287)

Dual-Active-Bridge Model and Control for Supporting Fast Synthetic Inertial Action

open access: yesEnergies, 2022
This article proposes a dual-active-bridge control to support the fast synthetic inertial action in DC microgrids. First of all, the selection of the isolated DC/DC converter to link an energy storage system with the DC bus in a microgrid is analyzed and
Stefania Cuoghi   +4 more
doaj   +1 more source

Model predictive control for a dual active bridge inverter with a floating bridge [PDF]

open access: yes, 2016
This paper presents a Model Predictive Control technique applied to a dual active bridge inverter where one of the bridges is floating. The proposed floating bridge topology eliminates the need for isolation transformer in a dual inverter system and ...
Chowdhury, Shajjad   +3 more
core   +2 more sources

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Switching strategy for isolated dual‐active‐bridge converter

open access: yesIET Power Electronics, 2017
The operating characteristics of a dual‐active‐bridge (DAB) converter are generally poor when using the single‐phase‐shift (SPS) control strategy while working with a light load or when the input voltage and the output voltage are not matched with the transformer ratio.
Hui Wang   +3 more
openaire   +1 more source

Model predictive control for Active-Bridge-Active-Clamp (ABAC) converter [PDF]

open access: yes, 2018
The Dual-Active-Bridge is a well-established isolated, bidirectional DC/DC topology suitable for applications where high efficiency, galvanic isolation and large voltage conversion ratios are required. However, in low voltage high power cases, the output
Chen, Ling   +5 more
core  

Designing Dual-Active Bridge (DAB) converter for energy storage/recovery systems in a lighting smart grid context [PDF]

open access: yes, 2014
Lighting Systems are suffering and important evolution with the introduction of LED lighting systems with new strategies of energy savings, incorporation of renewable energy sources and optionally a bidirectional interconnection with the mains (AC grid ...
Calleja Rodríguez, Antonio Javier   +3 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

An Analysis of a Transformerless Dual Active Half-Bridge Converter

open access: yesPower Electronics and Drives, 2022
This paper proposes a transformerless dual half-bridge converter (TLDAHB). By eliminating the transformer and harnessing the possibility of using a low inductor value, it is possible to minimise the size of the converter.
Sosnowski Robert   +2 more
doaj   +1 more source

Adaptive Control of Photovoltaic Systems Based on Dual Active Bridge Converters

open access: yesComputation, 2022
Dual active bridge converters (DAB) are used to interconnect photovoltaic (PV) generators with AC and DC buses or isolated loads. However, a controller is needed to provide a stable and efficient operation of the DAB converter when the PV generator must ...
Elkin Edilberto Henao-Bravo   +2 more
doaj   +1 more source

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