Results 21 to 30 of about 7,645,365 (300)

Power system optimization approach to mitigate voltage instability issues: A review

open access: yesCogent Engineering, 2023
Voltage instability is a major challenge facing power system (PS) that has affected some organizations in achieving their desired goals. Therefore, voltage instability is the incapability of the PS to maintain the voltage standard under no disturbance ...
Samson Ademola Adegoke, Yanxia Sun
doaj   +1 more source

A risk assessment method of multi-form transient voltage stabilities for high-proportion renewable energy sending-end power grids

open access: yesInternational Journal of Electrical Power & Energy Systems
For high-proportion renewable energy sending-end power grids, various transient voltage instabilities including transient overvoltage, transient low voltage, delayed voltage recovery, repeated low voltage ride through, and sustained low voltage, are ...
Lei Wu, Pupu Chao, Weixing Li, Zhimin Li
doaj   +1 more source

Practical considerations in voltage stability assessment

open access: yesInternational Journal of Electrical Power & Energy Systems, 1993
Abstract In recent years, much attention has been afforded the subject of voltage stability and as a result, analysis tools and techniques have emerged which are suitable for application to practical system problems. The aim of this paper is to discuss some important issues which must be considered when assessing the voltage stability of power ...
Prabha Kundur, Kip Morison, Baofu Gao
openaire   +1 more source

Transmission network voltage stability assessment using a new line stability index [PDF]

open access: yesهوش محاسباتی در مهندسی برق
Voltage stability assessment is one of the critical topics concerning the stability of power systems. With the increasing loading of transmission networks and its impact on downstream networks, the importance of studying this issue has gained attention ...
Seyed Eshagh Sadeghi   +2 more
doaj   +1 more source

A New Global Index for Short Term Voltage Stability Assessment

open access: yesIEEE Access, 2021
The utility scale of non-conventional generators (NCGs), such as wind and photovoltaic (PV) plants, are competitive alternatives to synchronous machines (SMs) for power generation. Higher penetration of NCGs has been respondent of causing several recent incidents leading up to voltage collapse in power systems due to the distinct characteristics of ...
Abdulrhman Alshareef   +3 more
openaire   +5 more sources

Towards on-line voltage stability assessment using synchrophasors [PDF]

open access: yes, 2012
Advances in technology has made possible the online monitoring and assessment of voltage stability. Synchrophasors measure voltage and current phasors with accurate time stamping with respect to Global Positioning System (GPS) clock reference.
Hirlekar, Himanshu S.   +3 more
core   +1 more source

Power System Voltage Stability Assessment and Control Strategies: State-of-the-Art Review

open access: yesJournal of Electrical and Computer Engineering
Voltage stability is crucial for power systems, ensuring that electrical grids maintain voltages within acceptable limits with increasing demand, renewable energy integration, and changing network topology.
Yalew Gebru Werkie   +2 more
doaj   +1 more source

Transient voltage stability assessment and margin calculation based on disturbance signal energy feature learning

open access: yesFrontiers in Energy Research
With the increasing variation of the network topology and the high complexity of the processing measurement data, the transient voltage stability assessment of the new power system is facing significant challenges in low accuracy and high time costs.
Yan Chen   +5 more
doaj   +1 more source

Effect of ambient temperature variations on estimation of proximity of the voltage collapse point

open access: yesIET Generation, Transmission & Distribution, 2020
Due to deforestation, greenhouse gases and increasing air conditioner systems, the temperatures are changing drastically and the effects are prominent in summer and winter seasons.
Trinadha Burle   +1 more
doaj   +1 more source

Voltage Stability Margin Index Estimation Using a Hybrid Kernel Extreme Learning Machine Approach

open access: yesEnergies, 2020
This paper presents a novel approach for Voltage Stability Margin (VSM) estimation that combines a Kernel Extreme Learning Machine (KELM) with a Mean-Variance Mapping Optimization (MVMO) algorithm.
Walter M. Villa-Acevedo   +2 more
doaj   +1 more source

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