Results 271 to 280 of about 5,196,065 (318)

Congestion management ensuring voltage stability

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2006
This paper addresses the congestion management problem avoiding offline transmission capacity limits related to stability. These limits on line power flows are replaced by optimal power flow-related constraints that ensure an appropriate level of security, mainly targeting voltage instabilities, which are the most common source of stability problems ...
A.J. Conejo, F. Milano, R. Garcia-Bertrand   +2 more
openaire   +1 more source

Enhanced-Online-Random-Forest Model for Static Voltage Stability Assessment Using Wide Area Measurements

IEEE Transactions on Power Systems, 2018
Application of data mining based methods in online voltage stability assessment has attracted vast attentions in recent years. To account for significant system changes, most of the data mining based methods reconstruct an entire model based on the ...
Heng-Yi Su, Tzu-Yi Liu
semanticscholar   +1 more source

Voltage stability preventive control using a new voltage stability index

2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005
Effective voltage control schemes have been brought to attention in a considerable number of studies, as power system loads are located farther away from power plants and reactive power losses have tended to increase due to the heavier power flow with high load growth and long distance transmission.
T. Esaka, Y. Kataoka, T. Ohtah, S. Iwamoto   +3 more
openaire   +1 more source

Voltage Stability Enhancement based on Voltage Stability Indices Using FACTS Controllers

2018 International Conference on Engineering Technology and their Applications (IICETA), 2018
Load demand increase (especially reactive load) and limited sources of generation has led to operate the power system near its voltage instability point. Consequently, the issue to determine voltage stability before voltage collapse has become an interesting subject for many researchers.
Maan A. Jirjees, Dhiya A. Al-Nimma, Majid S. M. Al-Hafidh   +2 more
openaire   +1 more source

Three-Stage Hierarchically-Coordinated Voltage/Var Control Based on PV Inverters Considering Distribution Network Voltage Stability

IEEE Transactions on Sustainable Energy, 2022
Cuo Zhang, Yan Xu, Yu Wang, Z. Dong, Rui Zhang   +4 more
semanticscholar   +1 more source

Voltage stability assessment: Voltage control inadequacy problem

2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), 2018
The problem of voltage control inadequacy in voltage control devices in a power system is revealed, when an inverse relationship between controlling and controlled variables exists. The voltage control inverse relationship could adversely affect the voltage profile in a power system, thus, it is necessary to determine the relationship between ...
Oscar Cuaresma Zevallos, Marcos Vinicius Pimentel, Ricardo Prada   +2 more
openaire   +1 more source

Voltage stability indices for stability assessment: a review

International Journal of Ambient Energy, 2018
Right through the past eras, behind numerous shutdowns voltage instability was the cause. Assessment of system voltage consistently ensures safe operation.
AR Nageswa Rao, P. Vijaya, M. Kowsalya
semanticscholar   +1 more source

Detecting transient voltage stability and voltage sag

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2004
This paper presents method to discriminate between transient voltage stability and voltage sag. The discrete wavelet transform (WT) is a powerful tool in the analysis of the transient phenomena in power systems because of its ability to extract information in both the time and frequency domain.
Jurado, Francisco, Saenz, José Ramón
openaire   +2 more sources

Accelerator terminal voltage stability

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1992
Abstract Measurements reported at the 11th International Conference on Applications of Accelerators in Research and Industry [Schroeder et al., Nucl. Instr. and Meth. B56/B57 (1991) 1033] for a 1 MV single-ended Pelletron accelerator equipped with corona probe and tank liner voltage stabilizers have been extended by measuring the resonant yield of γ ...
J.A. Ferry, J.J. Kolonko, S.H. Phillips, S.J. Lunstrum   +3 more
openaire   +1 more source

Voltage stability indices-A comparison and a review

Computers & electrical engineering, 2022
Hossam S. Salama, I. Vokony
semanticscholar   +1 more source