Results 41 to 50 of about 1,237,786 (296)

Dynamic reactive power planning method for CSP-PV hybrid power generation system

Journal of Measurement Science and Instrumentation, 2020
Aiming at the faults of some weak nodes in the concentrated solar power-photovoltaic（CSP-PV） hybrid power generation system, it is impossible to restore the transient voltage only relying on the reactive power regulation capability of the system itself ...
ZHANG Hong, DONG Hai-ying, CHEN Zhao, HUANG Rong, DING Kun   +4 more
doaj  

Dynamic VAR planning methodology to enhance transient voltage stability for failure recovery

Journal of Modern Power Systems and Clean Energy, 2017
In recent years, failure recovery after faults is concerned and discussed worldwide as an important and hot topic. Facing the challenge of heavy loads and ultra-high voltage transmission, it’s urgent to propose some solutions to enhance transient voltage
Di YANG, Haozhong CHENG, Zeliang MA, Liangzhong YAO, Zhonglie ZHU   +4 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

A review of power system dynamic equivalents for transient stability studies

The Journal of Engineering, 2022
The increasing complexity of interconnected power system has brought challenges to detailed dynamic simulation in terms of computational effort. Therefore, for transient stability assessment, dynamic equivalents of parts of large‐scale system are ...
Saijiang Kai, Yong Che, Feng Zhang, Gaolei Wu, Zhuan Zhou, Ping Huang   +5 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Koopman model predictive control based load modulation for primary frequency regulation

IET Generation, Transmission & Distribution
Conventional power systems function under the assumption that loads are uncontrollable, and that the generation control is the primary means of preserving system voltage, frequency, and stability.
Ahmed Husham, Innocent Kamwa, Hussein Suprême   +2 more
doaj   +1 more source

Stability Margin Index of the Receiving-End Power System Based on the Whole Process Simulation

IEEE Access
With the rapid development of the Chinese power grid, its dynamic behavior becomes increasingly complex. How to prevent voltage instability and voltage collapse at the receiving-end system has become an urgent problem at present.
Li Huang
doaj   +1 more source

Power Quality Improvement and Low Voltage Ride through Capability in Hybrid Wind-PV Farms Grid-Connected Using Dynamic Voltage Restorer [PDF]

, 2018
© 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission.This paper proposes the application of a dynamic voltage restorer (DVR) to ...
Allaoui, Tayeb, Benali, Abdelkrim, Denai, Mouloud, Khiat, Mounir   +3 more
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Voltage angle‐based coherency identification in power system

IET Generation, Transmission & Distribution
Coherency detection in power system is vital step for controlled‐islanding. Model‐based slow‐coherency method is the traditional method of detecting coherent areas, which suffers from computational burdens.
Zainab Alnassar, Nagarajan Selukka Thulasiram   +1 more
doaj   +1 more source