Results 21 to 30 of about 187,866 (266)

Modelling and Simulation of Low-Head Hydro Turbine for Small Signal Stability Analysis in Power System [PDF]

Journal of Renewable Energy and Environment, 2016
The hydro turbine dynamics have a considerable influence on the dynamic stability of power system. In the study of dynamic stability, the system is modeled by the linear differential equations (small  signal analysis).
Ghazanfar Shahgholian
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono, Yoshifumi Moriyama, Koji Ohashi, Naoya Otaka, Minako Tatsumi, Toyoaki Murohara, Noriyuki Ouchi, Satoru Oshima   +7 more
wiley   +1 more source

Identification of dominant instability modes in power systems based on spatial‐temporal feature mining and TSOA optimization

IET Generation, Transmission & Distribution
The recognition of the transient dominant instability mode is of great significance for rapidly and accurately formulating transient emergency decisions in power systems. In response to the challenge of accurately distinguishing between angle instability
Miao Yu, Jianqun Sun, Shuoshuo Tian, Shouzhi Zhang, Jingjing Wei, Yixiao Wu   +5 more
doaj   +1 more source

Small-Signal Modeling and Interaction Analysis of LCC-HVDC Systems Based on Harmonic State Space Theory

IEEE Access, 2022
High-voltage direct current (HVDC) technology based on Line Commutated Converter (LCC) is widely used in modern power systems due to its numerous benefits.
Kezheng Jiang, Pan Hu, Kan Cao, Dan Liu, Chang Ye   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Artificial neural network assisted robust droop control of autonomous microgrid

IET Renewable Power Generation
Electric grid is vulnerable to power imbalance and inertia is the grid's response to overcome such disturbance. Augmentation of power electronic converter based renewable energy technologies like Photovoltaic Generators (PVG) and batteries in utility ...
Sidra Kanwal, Muhammad Qasim Rauf, Bilal Khan, Geev Mokryani   +3 more
doaj   +1 more source

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

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

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