Results 71 to 80 of about 82,886 (303)

Grid Connection Using a Structure That Combines a Buck Converter and a Push-Pull Converter to Reduce the Low-Frequency Current Ripple of the Fuel-Cell

open access: yesIEEE Access, 2022
In a grid-connected power generation system using a fuel cell, the low-frequency ripple component must be maintained within an allowable range to improve the lifespan and efficiency of the fuel cell.
Gyoung-Jong Son   +2 more
doaj   +1 more source

Cryo‐EM of Rationally Designed Photosystem I Nanoassembly on Graphene Validates Orientation‐Driven Enhancement of Photocatalytic Performance

open access: yesAdvanced Functional Materials, EarlyView.
The first cryo‐EM visualization and quantification of oriented Photosystem I (PSI) on single‐layer graphene is reported. Domain‐specific covalent anchoring of PSI, with the reducing side of the biophotocatalyst toward graphene, promotes three‐fold higher anodic photocurrent generation compared to a randomly physisorbed counterpart. This approach allows
Miriam Izzo   +6 more
wiley   +1 more source

Solar Photovoltaic and Thermal Energy Systems: Current Technology and Future Trends [PDF]

open access: yes, 2017
Solar systems have become very competitive solutions for residential, commercial, and industrial applications for both standalone and grid connected operations. This paper presents an overview of the current status and future perspectives of solar energy
Abu.Rub, Aitham   +2 more
core   +1 more source

Investigation and analysis of interleaved dc-dc boost converter for grid-connected photovoltaic energy system

open access: yesMANAS: Journal of Engineering, 2023
The installation of photovoltaic energy system has been increasing in recent years with the increment of the demand to the electrical power. PV system can be installed as either standalone or grid-connected.
Mehmet Buyuk
doaj  

Ultrahigh‐Yield, Multifunctional, and High‐Performance Organic Memory for Seamless In‐Sensor Computing Operation

open access: yesAdvanced Functional Materials, EarlyView.
Molecular engineering of a nonconjugated radical polymer enables a significant enhancement of the glass transition temperature. The amorphous nature and tunability of the polymer, arising from its nonconjugated backbone, facilitates the fabrication of organic memristive devices with an exceptionally high yield (>95%), as well as substantial ...
Daeun Kim   +14 more
wiley   +1 more source

Modeling and Simulation of Grid-connected Photovoltaic Generation System

open access: yesKongzhi Yu Xinxi Jishu, 2014
Through establishing the mathematical model of photovoltaic array and grid-connected photovoltaic converter, it elaborated and analyzed the double closed-loop control strategy based on grid-voltage oriented vector control for the grid-connected ...
CHEN Gaohua, DENG Hua
doaj  

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Controller design for a single-phase two-cell multilevel cascade H-bridge converter [PDF]

open access: yes, 2008
In this paper is studied the single-phase two-cell multilevel cascade H-bridge power converter connected to the grid, acting as a synchronous rectifier. The power exchange process between the cells of the converter and the grid is analysed. Based on this
Carrasco Solís, Juan Manuel   +6 more
core   +1 more source

A cooperative control strategy for power quality based on parallel grid-connected converters

open access: yes电力工程技术
Power quality control based on grid-connected converter can effectively utilize the surplus capacity of the converter and improves the benefits. However, existing methods tend to only consider grid-following (GFL) control and fail to fully utilize the ...
LIANG Xiaorui   +5 more
doaj   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

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