Results 71 to 80 of about 259,512 (191)

Optimal Reactive Power Planning Using FACTS Devices for Voltage Stability Enhancement in Power Transmission Systems

Energy Science & Engineering
The increased demand for electricity has forced power systems to operate near their stability limits. Optimal reactive power planning (ORPP) can enhance voltage stability and provide much‐needed support for grid operation. Flexible AC transmission system
Rawan Abu Zeitawyeh, Ayman Faza
doaj   +1 more source

Voltage stability indexes for contingencies ranking

, 2008
Varios tipos de índices de estabilidad de voltaje han sido propuestos para el análisis de este fenómeno y, a la vez, alrededor de ellos se han propuesto métodos de ordenamiento de las contingencias para establecer las que son críticas en un Sistema de Potencia. Un grupo de estos índices se conocen como índices físicos dado que su cálculo se fundamenta
Ríos, Mario A., Zapata Grisales, Carlos Julio, Gómez Carmona, Oscar, Sánchez, José L.   +3 more
openaire   +1 more source

Optimal Scheduling Method for Multi-infeed Receiving-End Power Grids Under Frequency Deviation and Voltage Stiffness Constraints

Zhongguo dianli
The ultra high voltage direct current (UHVDC) transmission system based on line commutation converters (LCCs) is the main technical means for long-distance and high-capacity transmission.
Shuyi SHEN, Guoteng WANG, Yangqing DAN, Feifei SUN, Ying HUANG, Zheng XU   +5 more
doaj   +1 more source

Comprehensive evaluation of voltage stability based on EW-AHP and Fuzzy-TOPSIS

Heliyon, 2019
Large-scale voltage collapse incidences, which result in power outages over large regions and extensive economic losses, are presently common occurrences worldwide.
Jiahui Wu, Haiyun Wang, Lei Yao, Zhi Kang, Qiang Zhang   +4 more
doaj   +1 more source

Static-Voltage-Stability Analysis of Renewable Energy-Integrated Distribution Power System Based on Impedance Model Index

Energies
Static-voltage stability has become one of the most significant risks faced by large-scale renewable energy integration. However, traditional methods for static-voltage-stability analysis are often overly complex.
Yang Wang, Yongxiang Cai, Wei Li, Zhukui Tan, Zihong Song, Yue Li, Hao Bai, Tong Liu   +7 more
doaj   +1 more source

Voltage Stability Proximity Index Determined By Les Algorithm

, 2012
{"references": ["B. LEe and V. Ajjarapu. \"Invariant subspace parametric sensitivity (ISPS)\nof structure-preserving power system models.\" IEEE Trans.on Power\nSystems, Vol.11, pp: 845-850, Feb.1996.", "Feng Zhihong , Liu Qu, Ni Yixin, et al. \"Analysis steady-state voltage\nstability in multi-machine power systems by singular value\", Proceeding of ...
Benalia Nadia, Bensiali Nadia, Mekki Mounira   +2 more
openaire   +1 more source

Steady State Stability Assessment Using Extreme Learning Machine Based on Modal Analysis [PDF]

The growth of electricity market led to increase utilization and higher loading of the electric transmission grids worldwide. This situation made power system operate close to steady-state stability limit (SSSL). It could trigger a voltage instability or
Gunadin, Indar Chaerah
core  

Stability issues in presence variable distributed generation into radial distribution network

MATEC Web of Conferences, 2018
Related to environmental issues resulting from the use of traditional energy sources, drive usage of renewable energy is increasing. Changes in the structure of the network will certainly affect the changes in voltage stability.
Yuli Asmi Rahman, Siswanto Agus, Mahmudi Irwan   +2 more
doaj   +1 more source

Short-Term Voltage Stability Analysis and Enhancement Strategies for Power Systems With Photovoltaic Penetration

IEEE Access
As the photovoltaic (PV) penetration in the grid continues to rise, significant changes occur in the power source configuration of power systems, altering the short-term voltage stability characteristics of the grid. This paper theoretically analyzes the
Wenqing Hao, Minquan Chen, Deqiang Gan
doaj   +1 more source

L-Index-Based Technique for Voltage Collapse Prediction and Voltage Stability Enhancement in Electrical Power Systems

ABUAD Journal of Engineering Research and Development
Recent years have witnessed a notable increase in the occurrence of blackouts, especially in developing nations, attributed to the continuously growing demand on modern power networks.
Akintunde Samson Alayande, Amirah Opeyemi Hassan, Flourish Olobaniyi, Samuel Olufemi Osokoya, Azeez Ishola Adebeshin, Ayoade Benson Ogundare   +5 more
doaj   +1 more source