Results 1 to 10 of about 124 (97)

A Data-Driven Approach to Voltage Stability Support via FVSI-Based Distributed Generator Placement in Contingency Scenarios

Energies
This research presents a novel methodology based on data analysis for improving voltage stability in transmission systems. The proposal aims to determine a single distributed generator’s optimal location and sizing using the Fast Voltage Stability Index (
Manuel Jaramillo, Fílippos Perdikos
exaly   +4 more sources

Optimizing Critical Overloaded Power Transmission Lines with a Novel Unified SVC Deployment Approach Based on FVSI Analysis

Energies
This paper proposes a novel methodology to improve stability in a transmission system under critical conditions of operation when additional loads that take the system to the verge of stability are placed in weak bus bars according to the fast voltage ...
Manuel Jaramillo, Diego Carrión
exaly   +4 more sources

Femoral venous stasis index predicts elevated right atrial pressure and mortality in pulmonary hypertension [PDF]

ERJ Open Research
Background Elevated right atrial pressure (RAP) is associated with poor prognosis regarding 1-year mortality in pulmonary hypertension (PH) patients. Unfortunately, there is currently no reliable non-invasive technique for estimating RAP in PH patients ...
Magali Croquette, Elisa Larrieu Ardilouze, Corinne Beaufort, Etienne-Marie Jutant, Matthieu Puyade, David Montani, Cécile Thollot, Damien Lanéelle, Marion De Géa, Jean-Eudes Trihan   +9 more
doaj   +2 more sources

Under voltage load shedding using hybrid ABC-PSO algorithm for voltage stability enhancement [PDF]

Heliyon, 2021
Voltage collapse tends to occur due to the voltage instability created during large faults. As a last resort, under-voltage load shedding (UVLS) is performed after all the available power operation and control mechanisms have been exhausted.
Susan Mumbi Kisengeu, Christopher Maina Muriithi, George Nyauma Nyakoe   +2 more
doaj   +2 more sources

Machine learning algorithms for voltage stability assessment in electrical distribution systems [PDF]

Scientific Reports
Voltage instability poses a significant challenge by limiting power system operation and transmission capacity. Rapid detection and effective corrective actions are essential to prevent voltage collapse. However, traditional methods for assessing voltage
Molla Addisu Mossie, Tefera Terefe Yetayew, Girmaw Teshager Bitew, Mezigebu Getinet Yenealem, Teketay Mulu Beza   +4 more
doaj   +2 more sources

Duplication of inferior vena cava and coagulation mutations with left-sided iliofemoral venous thrombosis [PDF]

Journal of Vascular Surgery Cases and Innovative Techniques, 2019
Duplication of the inferior vena cava (IVC) with coagulation mutations in the form of factor V Leiden and MTHFR mutations represents an unusual subset of patients.
Mukesh Kumar Garg, MS, DNB, Ambarish Satwik, MS, DNB, Varinder S. Bedi, MS, FVSI, Gurunandan Uppinakudru, MS, Sandeep Agarwal, MS, FIVS, Ajay Yadav, MS, MRCS, FNB   +5 more
doaj   +2 more sources

Optimal DG allocation using the Dingo Optimization Algorithm: robust power loss reduction with concomitant voltage stability improvement in distribution and transmission networks [PDF]

Scientific Reports
The paper develops a comprehensive model for optimal allocation and sizing of DG units using the Dingo Optimization Algorithm (DOA) targeting active power loss reduction with a concomitant improvement in voltage stability across both distribution (DN ...
Hossam Kotb, George Michael, Kareem M. AboRas   +2 more
doaj   +2 more sources

Voltage Collapse Prediction of IEEE 30-Bus system [PDF]

Tikrit Journal of Engineering Sciences, 2021
Voltage collapse in the power system occurs as a result of voltage instability, thus which lead to a blackout, and this is a constant concern for network workers and customers alike.
Mohammed H. Ibrahim, Abdulsattar H. Jasim   +1 more
doaj   +3 more sources

Bus Allocation for Voltage Stabilization in Multi-Machine Power System Using GWO [PDF]

EAI Endorsed Transactions on Energy Web, 2021
Today, power systems are being operated under greatly stressed conditions due to rapidly growing demand for electrical energy, penetration of renewable energy sources, large seasonal load variations, and operation in competitive energy market conditions.
Nasser AL-Zubaydi, Ali Jasim
doaj   +1 more source

A Novel Methodology for Strengthening Stability in Electrical Power Systems by Considering Fast Voltage Stability Index under N − 1 Scenarios

Energies, 2023
An electrical power system (EPS) is subject to unexpected events that might cause the outage of elements such as transformers, generators, and transmission lines.
Manuel Dario Jaramillo, Diego Francisco Carrión, Jorge Paul Muñoz   +2 more
doaj   +1 more source