Results 21 to 30 of about 120,545 (279)

Efficient performance indices for voltage collapse detection [PDF]

open access: yes2010 IEEE International Energy Conference, 2010
This paper proposes four performance indices (PIs) for efficient detecting the most weakness load buses which may be subjected to voltage collapse occurrence at different operating conditions. The classification of the suggested ranking PIs are dependent on their severity on the voltage collapse.
A. A. Abou El-Ela   +3 more
openaire   +1 more source

An improved lumped element nonlinear circuit model for a circular CMUT cell [PDF]

open access: yes, 2012
Cataloged from PDF version of article.This paper describes a correction and an extension in the previously published large signal equivalent circuit model for a circular capacitive micromachined ultrasonic transducer (CMUT) cell.
Atalar, A.   +7 more
core   +1 more source

Optimal coordinated voltage emergency control against voltage collapse

open access: yesInternational Journal of Electrical Power & Energy Systems, 2013
Abstract This paper presents a novel model for optimal coordinated voltage emergency control (OCVEC). It takes account of the dynamics of loads and discrete/continuous nature of controls with coordination of dissimilar controls at different geographical locations in order to keep the desired voltage profiles against voltage collapse during an ...
Fang Zhang, Ka Wing Chan, Da-Zhong Fang
openaire   +1 more source

Optimal Location and Sizing of Renewable Distributed Generators for Improving Voltage Stability and Security Considering Reactive Power Compensation

open access: yesEnergies, 2022
The integration of renewable resources into the existing power distribution system is expanding to reduce gas emissions, treat climate change and satisfy the current global need for clean energy. If the location and size of these renewable generators are
Akanit Kwangkaew   +3 more
doaj   +1 more source

Performance Evaluation of Voltage Stability Indices for Dynamic Voltage Collapse Prediction [PDF]

open access: yes, 2006
The research presents a study in evaluating the performance of several voltage stability index has been proposed and it is named as the power transfer stability index. The proposed index is then compared with other known voltage stability indices such as
Hussain, Aini   +2 more
core   +1 more source

Investigating Various Severity Factor Behaviors for Operational Risk Assessment

open access: yesElectricity, 2022
Operational risk assessment is a stochastic approach to quantify the operational security of power systems. In this study, the interrelation between severity factor and operational risk, two important parameters in operational risk assessment, is ...
Zunaira Nazir, Math H. J. Bollen
doaj   +1 more source

New Line Voltage Stability Index (BVSI) for Voltage Stability Assessment in Power System: The Comparative Studies

open access: yesIEEE Access, 2022
Modern power utilization has been forced to operate close to their stability limits, which may lead to voltage instability or collapse owing to the stressed operating conditions of networks.
Bazilah Ismail   +6 more
doaj   +1 more source

Voltage Multistability and Pulse Emergency Control for Distribution System with Power Flow Reversal [PDF]

open access: yes, 2015
High levels of penetration of distributed generation and aggressive reactive power compensation may result in the reversal of power flows in future distribution grids.
Nguyen, Hung D., Turitsyn, Konstantin
core   +2 more sources

The analysis of voltage collapse induced by nonlinear loads in an arc furnace utilising deep learning-driven TabNet and NODE models [PDF]

open access: yesPeerJ Computer Science
Electric arc furnaces (EAF) represent a class of nonlinear loads distinguished by high energy consumption during metal melting processes. Voltage collapses in these systems adversely affect power quality, reduce energy efficiency, and cause significant ...
Burçak Asal   +3 more
doaj   +2 more sources

Monitoring voltage collapse margin by measuring the area voltage across several transmission lines with synchrophasors

open access: yes, 2014
We consider the fast monitoring of voltage collapse margin using synchrophasor measurements at both ends of transmission lines that transfer power from two generators to two loads.
Dobson, Ian, Ramirez, Lina
core   +1 more source

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