Results 31 to 40 of about 6,021,481 (270)

An improved decentralized control strategy for a PV hybrid energy storage system in an LVDC microgrid

open access: yesFrontiers in Energy Research
This paper introduces an improved decentralized control strategy for a photovoltaic (PV) hybrid energy storage (HES) system (HESS) in a DC microgrid. The power sharing method of the HES system is discussed in depth.
Jianbiao Li   +8 more
doaj   +1 more source

A Simplified Control Method for Tie-Line Power of DC Micro-Grid

open access: yesEnergies, 2018
Compared with the AC micro-grid, the DC micro-grid has low energy loss and no issues of frequency stability, which makes it more accessible for distributed energy. Thus, the DC micro-grid has good potential for development.
Yanbo Che   +4 more
doaj   +1 more source

The Optimal Acoustic Measurement Point Selection for UHV Reactors in Substations Based on Equivalent Impedance and Information Entropy Theory

open access: yesIEEE Access
The operation of an Ultra-High Voltage (UHV) shunt reactor generates significant acoustic signals containing crucial information. To accurately assess the various acoustic parameters of ultra-high voltage shunt reactors, it is crucial to establish an ...
Yingwen Li   +5 more
doaj   +1 more source

Scheme Design and Engineering Implementation of DC Grid-Connection and Accommodation of Photovoltaic Power

open access: yesZhongguo dianli, 2019
With the development of flexible DC technology, the construction of source-grid -load in distribution network is greatly enriched, and the new-type grid models become possible such as centralized photovoltaic DC grid-connection and DC power supply for ...
Zhaoxiang YANG   +3 more
doaj   +1 more source

DC-DC Boost Converter with Constant Output Voltage for Grid Connected Photovoltaic Application System [PDF]

open access: yes, 2010
The main purpose of this paper is to introduce an approach to design a DC-DC boost converter with constant output voltage for grid connected photovoltaic application system.
Chan, Pui Weng
core  

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz   +5 more
wiley   +1 more source

Simulation study on transient operation and bypass protection of a single-phase conventional hybrid transformer

open access: yesJournal of Engineering and Applied Science
To address the limited voltage regulation capability of conventional power-frequency transformers and the vulnerability of the power electronic branch in hybrid transformers to transient stresses, this paper studies a single-phase conventional hybrid ...
Wenming Liu   +8 more
doaj   +1 more source

Coordinated Control Strategy of CU-MTDC under Abnormal Conditions Considering Power Supply Security

open access: yesApplied Sciences, 2021
The coastal urban multi-terminal DC (CU-MTDC) is a prospective solution for enhancing the power supply security of the coastal urban power (CUP) grid and integrating the large-scale offshore wind farm. However, the large DC disturbances may significantly
Zhuodi Wang   +5 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

A Terminal Tube Text Detection and Recognition Method Based on Improved YOLOv7-Tiny and CRNN

open access: yesIEEE Access
In the process of intelligent inspection of substation terminal line, the automatic identification of terminal coding tube is a crucial step. This study proposes a new method for text detection and recognition of terminal coding tube based on deep ...
Liao Huilian   +5 more
doaj   +1 more source

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