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Neural-network representation of Voltage Stability Indices at the voltage collapse
2011 North American Power Symposium, 2011Representing system security in power flow based system models by the scalar magnitude of a Voltage Stability Index (VSI) may be a very difficult task, which may even render the applicability of such models impractical. VSIs at voltage collapse points are difficult to predict when reactive power generation limits are taken into account in system ...
Guilherme G. Lage +2 more
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Analysis and Comparison of Line Voltage Stability Indices
2018 6th International Renewable and Sustainable Energy Conference (IRSEC), 2018Voltage stability indices are one of the powerful means of power system monitoring. With the existence of several ones in literature, some of them are less accurate and insensitive to some kinds of disturbances and especially when the power system operates near to its load ability limit.
Aziz Oukennou, Abdelhalim Sandali
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A comprehensive review of the voltage stability indices
Renewable and Sustainable Energy Reviews, 2016Abstract Voltage stability assessment is a major issue in monitoring the power system stability. Different voltage stability indices (VSIs) have been proposed in the literature for voltage stability assessment. These indices can be used for distributed generation (DG) placement and sizing, detecting the weak lines and buses and triggering the ...
Javad Modarresi +2 more
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A comparison of transmission line voltage stability indices
2016 2nd International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB), 2016The modern power system networks are being executed under stressed conditions due to continuous increase in power demand. The voltage collapse can appear quite precipitously. So we need uninterrupted control of the system state. This paper compares the performance of several indices which furnish important information about the proximity of the system ...
P. Rajalakshmi, M. Rathinakumar
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Performance Evaluation of Voltage Stability Indices for a Static Voltage Collapse Prediction
2020 IEEE PES/IAS PowerAfrica, 2020The frequent happenings of voltage collapse in a power system in the recent time as a result of continuous increase in power demand has been a concern and has posed a great threat to power system utilities. In this paper, to predict a voltage collapse bus, an approach named critical bus voltage stability index (CBVSI) which is based on the voltage ...
Isaiah G. Adebayo, Yanxia Sun
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Load modelling in static voltage stability indices calculation
European Transactions on Electrical Power, 1999AbstractThis paper is concerned with load modelling for static voltage stability indices calculation. Static voltage stability is closely related to the maximum active and reactive power flow a network can transmit to load or from generator. A two‐bus system is used to show that the assessment index may or may not indicate the maximum depending on the ...
R. B. Prada, J. O. R. Dos Santos
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2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT), 2019
Voltage Stability analysis is a very vital and challenging issue of the power system and maintains the stable bus voltage profile is the biggest problem. Here we applied Modal analysis, Line voltage stability indices, to study voltage collapse problem and find the weakest bus in the test bus system by using the PV curve.
Lalit Kumar +3 more
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Voltage Stability analysis is a very vital and challenging issue of the power system and maintains the stable bus voltage profile is the biggest problem. Here we applied Modal analysis, Line voltage stability indices, to study voltage collapse problem and find the weakest bus in the test bus system by using the PV curve.
Lalit Kumar +3 more
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STATIC LOAD MODELLING AND VOLTAGE STABILITY INDICES
International Journal of Power and Energy Systems, 2009This paper analyzes the performance of some of the widely used voltage stability indices, namely, singular value, eigenvalue, and loading margin with different static load models. Well-known ZIP model is used to represent loads having components with different power to voltage sensitivities.
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A Comparative analysis of line stability indices for dynamic voltage stability
2017 International Conference on Engineering Technology and Technopreneurship (ICE2T), 2017Modern power system networks are often subjected to high stress due to meet the growing energy demand and operated close to their maximum stability limits. As a result, these networks are becoming less secure and always expecting the risk of voltage instability.
Fadi M. Albatsh +6 more
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Assessment of line stability indices in detection of voltage stability status
2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2017During the last decade, several line indices have been proposed to assess voltage stability status of power systems based on transmission lines capability. In these methods, it is assumed that both the active and the reactive powers flow in the same direction from the sending bus to the receiving one. Then, the distance from existing operating point to
S. Yari, H. Khoshkhoo
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