Results 111 to 120 of about 5,196,065 (318)

Influence of DC-Bus Voltage on Synchronization Stability of Grid-Following Converters

Shanghai Jiaotong Daxue xuebao
With the increasing penetration of new energy sources and the development of new power systems, grid-following converter (GFL) plays a crucial role in maintaining the stability of power systems.
SI Wenjia, CHEN Junru, ZHANG Chenglin, LIU Muyang
doaj   +1 more source

Improving the Voltage Stability and Performance of FACTS Controller in Transmission Line Network [PDF]

, 2017
Conventionally Shunt Compensation is used to increase the transfer capability of a transmission line. By using FACT'S controllers one can manage the variables such as voltage magnitude and phase angle at selected bus and line impedance. Objective of this
Mahajan, M. N. (Mr), Mali, M. P. (Mr)
core  

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Stability analysis and voltage improvement in DG-integrated distribution networks using VCPI-based critical buses and lines detection considering uncertain power factor

Ain Shams Engineering Journal
Voltage stability ensures reliable and efficient power transmission to end-users, making it essential for power system efficiency. Dynamic load changes and rising power requirements might cause voltage instability and strain performance.
Hasan Saeed Qazi, Zia Ullah, Ahmad Alferidi, Mohammed Alsolami, Badr Lami, Syed Muhammad Abrar Akber   +5 more
doaj   +1 more source

Control Design and Voltage Stability Analysis of a Droop-Controlled Electrical Power System for More Electric Aircraft

IEEE transactions on industrial electronics (1982. Print), 2017
This paper focuses on the analysis of a single dc bus multigenerator electrical power system (EPS) for future more electric aircraft. Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a stability ...
Fei Gao, S. Bozhko, A. Costabeber, G. Asher, P. Wheeler   +4 more
semanticscholar   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Short-term voltage stability analysis in power systems: A voltage solvability indicator

International Journal of Electrical Power & Energy Systems
This paper presents an analytical study for short-term voltage stability based on a novel indicator. First, it is shown that the reduced Jacobian matrix of network equations can be transformed to obtain an approximately symmetric matrix which is usually ...
Wenqing Hao, Xueyi Wang, Yifan Yao, Deqiang Gan, Minquan Chen   +4 more
doaj   +1 more source

Multi-objective approach for load shedding based on voltage stability index consideration

Alexandria Engineering Journal, 2014
In voltage stability analysis, it is useful to assess voltage stability of power systems by means of scalar magnitudes, or indices. Operators can use voltage stability indices to know how close the system to voltage collapse.
R. Kanimozhi, K. Selvi, K.M. Balaji
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Some studies on the deformation of the membrane in an RF MEMS switch [PDF]

, 2008
Radio Frequency (RF) switches of Micro Electro Mechanical Systems (MEMS) are appealing to the mobile industry because of their energy efficiency and ability to accommodate more frequency bands.
Ambati, V.R., Asheim, A., Berg, van den, J.B., Bokhove, O., et al., xx, Gennip, van, Y., Gerasimov, T., Hlod, A.V., Planqué, R., Schans, van der, M., Stelt, van der, S., Vargas Rivera, M., Vondenhoff, E.   +12 more
core   +1 more source