Results 1 to 10 of about 3,374,604 (301)

Optimal under voltage load shedding based on voltage stability index [PDF]

open access: yesIngeniería e Investigación, 2016
This paper presents a methodology for under voltage load shedding using a metaheuristic optimization technique and a stability criterion. Two strategies are proposed to find the minimal size and location of load to shed for the recovery of normal ...
Sandra Pérez   +2 more
doaj   +2 more sources

Voltage Stability Assessment and Control Using Indices and FACTS: A Comparative Review

open access: yesJournal of Electrical and Computer Engineering, 2023
The problem of voltage stability is becoming a more acute and indispensable topic given the major and sensitive role it plays in the electrical system. It can be considered a major factor in the initiation of blackouts around the world.
Rabiaa Gadal   +4 more
doaj   +1 more source

Coupled single-port method based voltage stability assessment with inverter-based generators

open access: yesEnergy Reports, 2023
With the increase of inverter-based generators in the power system, the proportion of traditional generators is decreasing, and their voltage support ability to the power system is weakening, the power system operation is approaching to its voltage ...
Zhenchuan Ma   +5 more
doaj   +1 more source

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

open access: yesJournal of Electrical and Computer Engineering, 2019
Nowadays, the changes of economic, environment, and regulations are forcing the electric utilities to operate systems at maximum capacity. Therefore, the operation and control of power system to improve the system stability has been receiving a great ...
Natakorn Thasnas, Apirat Siritaratiwat
doaj   +1 more source

An Efficient Approach for Fast and Accurate Voltage Stability Margin Computation in Large Power Grids

open access: yesApplied Sciences, 2016
This paper proposes an efficient approach for the computation of voltage stability margin (VSM) in a large-scale power grid. The objective is to accurately and rapidly determine the load power margin which corresponds to voltage collapse phenomena.
Heng-Yi Su
doaj   +1 more source

Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)

open access: yesJournal of Electrical and Computer Engineering, 2022
In this paper, static voltage stability assessments and their improvement using analytical and optimization techniques with different loading scenarios are described.
Tebeje Tesfaw Wondie, Teshome Goa Tella
doaj   +1 more source

Impact of HVDC transmission capacity on multi-send HVDC system voltage stability

open access: yesEnergy Reports, 2022
The massive construction of high voltage direct current (HVDC) makes the AC/DC interactions very complicated, which seriously affects transient voltage stability.
Mingjie Wang, Gang Zhang, Zhe Zhang
doaj   +1 more source

Voltage and frequency instability in large PV systems connected to weak power grid

open access: yesFrontiers in Energy Research, 2023
The voltage and frequency control of photovoltaic (PV) systems are influenced by coupled nonlinear factors. It has been discovered that frequency control stability is threatened by voltage regulation methods in PV systems.
Qianjin Zhang   +5 more
doaj   +1 more source

Bi-Objective Reactive Power Reserve Optimization to Coordinate Long- and Short-Term Voltage Stability

open access: yesIEEE Access, 2018
Reactive power reserve (RPR) management is a critical issue to power system voltage stability. Two RPR definitions are first proposed in this paper to evaluate the levels of RPR and improve voltage stability, namely long-term voltage stability-related ...
Quancai Sun, Haozhong Cheng, Yue Song
doaj   +1 more source

System static voltage stability analysis considering load characteristics of electrolytic aluminum

open access: yesEnergy Reports, 2022
The load characteristics have a significant impact on the static voltage stability analysis of the power grid. Wenshan power grid has a large amount of relatively centralized electrolytic aluminum load, accounting for 65% of the total local load.
Mingqiang Zhang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy