Results 21 to 30 of about 43,332 (267)

Ultra-Solvatochromic Probe Based on Binaphthofuran for Visual Detection of Early Trace Oil Leakage in Oil Reservoir Capsules

Molecules
The long-term reliability of converter transformers hinges on the integrity of oil reservoir capsules, whose early-stage oil leakage detection remains challenging.
Yihang Zhang, Hanlin Wen, Fuzhi Li, Xinyuan Huang, Wenqi Fu, Shanshan Yu   +5 more
doaj   +1 more source

Grid-Connected Adaptive Analysis and Control of the DC Wind Turbine Under the Grid-Side Transient Faults

IEEE Access, 2023
The grid-side transient fault ride-through problem seriously affects the stable operation of the grid-connected wind turbine. At present, the grid-connected adaptability analysis of DC wind turbine (DCWT) under the grid-side transient faults is still a ...
Zhanlong Li, Haiyang Han, Haiyun Wang, Qita Feng   +3 more
doaj   +1 more source

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

Frontiers 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, Jianbiao Li, Yong Chen, Yong Chen, Yue Wu, Xu Cheng, Xu Cheng, Ruixiong Yang, Ruixiong Yang   +8 more
doaj   +1 more source

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

Energies, 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, Jinhuan Zhou, Tingjun Lin, Wenxun Li, Jianmei Xu   +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

IEEE 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, Zhen Wei, Huilian Liao, Lin Li, Peizhong Zhang, Jingyun Zhao   +5 more
doaj   +1 more source

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

Zhongguo 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, Hongjian LI, Lei CHEN, Xiangyu CHEN   +3 more
doaj   +1 more source

A Three-Level dc-dc Converter for Bipolar dc Power Grids: Analysis and Experimental Validation [PDF]

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 2020
The concept of bipolar dc power grids has emerged, mainly due to the improvements in efficiency and offered flexibility when compared with unipolar architectures. Though, concerns of asymmetrical loads affecting voltage unbalances is the key challenge to overcome.
Vitor Monteiro, Tiago J. C. Sousa, Delfim Pedrosa, Sérgio Coelho, João Luiz Afonso   +4 more
openaire   +3 more sources

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

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

Journal 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, Xiao Tang, Pu Zhao, Xiao Liu, Peng Sun, Zhongjian Song, Bin Yang, Yechao Wang, Hao Zhou   +8 more
doaj   +1 more source

Design of a Multistable Finger Prosthesis with Programmable Metamaterials

Advanced 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, Jannik Krohn, Alexander Leichner, Dilip Chalissery, Heiko Andrae, Chris Eberl   +5 more
wiley   +1 more source