Results 71 to 80 of about 1,441,538 (293)

Wavelet neural network based on islanding detection via inverter‐based DG

open access: yes, 2015
In this article, a passive neurowavelet based on islanding detection technique for grid-connected inverter-based distributed generation has been developed.
Hossein Nasir Aghdam   +7 more
core   +1 more source

Matrix Stiffness Directs Stemness Signatures in Breast Cancer

open access: yesAdvanced Healthcare Materials, EarlyView.
We built lab‐grown breast cancer models to study how the stiffness of the tumor's surroundings influences cancer behavior. Softer environments encouraged more stem‐like, drug‐resistant cells, while stiffer ones kept cells more differentiated. These findings show that tissue mechanics drive cancer diversity and drug resistance, offering new insights for
Chantal Kopecky   +4 more
wiley   +1 more source

Grid-related protection for distributed energy resource balancing voltage and frequency ride-through capabilities with rapid fault isolation

open access: yesFrontiers in Energy Research
As the penetration rate of distributed energy resources (DERs) in distribution grids continues to increase, their voltage and frequency support capabilities during system disturbances and grid faults become increasingly critical, necessitating compliance
Hechong Chen   +6 more
doaj   +1 more source

Optimal feature selection for islanding detection in distributed generation

open access: yesIET Smart Grid, 2018
The integration of the distributed power generation into a distribution system comes with several system problems. One of the teething problems related to system protection is islanding detection.
Sheetal Chandak   +3 more
doaj   +1 more source

Designing Anti-islanding Detection Using the Synchrophasor Vector Processor

open access: yes, 2013
Designing Anti-Islanding Detection Using the Synchrophasor Vector Processor Ruth Huang The need for distributed generation (DG) has become more and more popular because of the adverse effects of fossil fuels and the fear of running out of fossil fuels ...
Huang, Ruth Christiana
core   +1 more source

Designing Strong, Tough, Fire‐Retardant and Self‐Healing Elastomers with Phosphorus/Nitrogen‐ and Biphenyl‐Containing Segments

open access: yesAdvanced Materials, EarlyView.
By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue   +11 more
wiley   +1 more source

An Efficient Hybrid Islanding Detection Method for Microgrids Using Kalman Filter

open access: yesEngineering Reports
Islanding condition gives rise to several problems in distributed generation networks, including power quality disturbances, equipment damage, interference with grid protection, and danger to the utility crews. During islanding condition, the distributed
Raza Haider   +5 more
doaj   +1 more source

Fuzzy Logic Controller Based Hybrid Anti Islanding Protection Scheme for Distributed Generators [PDF]

open access: yesJournal of Renewable Energy and Environment
In this research work, a fuzzy logic controller is designed and implemented for small signal stability analysis and anti-islanding protection on the CEGRE LV system. An activated oscillatory disturbance-type signal injection is required in the algorithm.
Dhanashri Changan, Pranav Darji
doaj   +1 more source

Anti-islanding Protection and Islanding Operation of Grid-Connected Hydropower Distributed Generation

open access: yes, 2005
Salient issues associated with the connection of hydropower distributed generation (HPDG) into distribution networks include operation and voltage regulation, grid connection and control interaction, anti-islanding protection and islanding operation, and
Ledwich, G (15495857)   +1 more
core  

Ultrathin Li Metal Anodes: Quantitative Design Principles and Manufacturability Across Liquid and Solid‐State Batteries

open access: yesAdvanced Materials, EarlyView.
Ultrathin lithium metal anodes (≤15 µm) offer a promising route to high‐energy‐density batteries due to their high capacity and low potential. This review presents design principles for ultrathin Li, evaluates fabrication strategies, and discusses challenges in liquid and solid‐state cells.
Cheng Wang   +9 more
wiley   +1 more source

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