Results 41 to 50 of about 401,092 (295)

The ping-pang variable amplitude limiter used in the coordinated controller of a hybrid reactive power compensation system

Energy Reports, 2023
The hybrid reactive power compensation system, which connects different reactive power compensation devices to the same bus, will be essential equipment for future power systems.
Yuwei Peng
doaj   +1 more source

Optimal sizing of C-type passive filters under non-sinusoidal conditions [PDF]

, 2014
In the literature, much attention has been focused on power system harmonics. One of its important effects is degradation of the load power factor. In this article, a C-type filter is used for reducing harmonic distortion, improving system performance ...
Dugan R. C., Garza F. D., IEEE Standard 18-2002, IEEE Standard 519–1992, Raymond C.   +4 more
core   +2 more sources

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

Optimal reactive power dispatch using an improved slime mould algorithm

Energy Reports, 2021
The optimal reactive power dispatch (ORPD) problem plays an important role in the reliability and economy of a power system. At present, the methods for solving the ORPD problem are insufficient in terms of both accuracy and computation time.
Yuanye Wei, Yongquan Zhou, Qifang Luo, Wu Deng   +3 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

An optimal reactive power pre-dispatch approach for minimizing active power losses

Frontiers in Energy Research
Renewable energy sources (RES) depend on location and weather conditions, which can negatively impact the transmission system operator’s active power losses.
Daniel Baltensperger, Hugo Rodrigues de Brito, Sambeet Mishra, Thomas Øyvang, Kjetil Uhlen   +4 more
doaj   +1 more source

Dimensioning of Reactive Power Compensation in an Autonomous Island System

Applied Sciences, 2022
In this paper, a method for sizing the reactive power compensation in a non-interconnected island power system is presented and applied to determine the necessary inductive reactive power compensation for the autonomous power system of Rhodes Island ...
Georgios N. Psarros, Georgios I. Tsourakis, Stavros A. Papathanassiou   +2 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

PowerModels.jl: An Open-Source Framework for Exploring Power Flow Formulations

, 2018
In recent years, the power system research community has seen an explosion of novel methods for formulating and solving power network optimization problems.
Bent, Russell, Coffrin, Carleton, Lubin, Miles, Ng, Yeesian, Sundar, Kaarthik   +4 more
core   +1 more source

Optimal planning of distribution grids considering active power curtailment and reactive power control [PDF]

, 2016
In this paper, a new planning methodology is proposed for existing distribution grids, considering both passive and active network measures. The method is designed to be tractable for large grids of any type, e.g., meshed or radial.
Aristidou, P, Hug, G, Karagiannopoulos, S, Koch, S, Ulbig, A   +4 more
core   +1 more source