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IEEE Transactions on Power Systems, 1990
The dynamic phenomena of power system voltage collapse are analyzed by the method of dynamic simulation using induction motor models. From the viewpoint of dynamic phenomena, the voltage collapse starts locally at the weakest node and spreads out to the other weak nodes. The main conclusions drawn from this study are as follows.
Y. Sekine, H. Ohtsuki
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The dynamic phenomena of power system voltage collapse are analyzed by the method of dynamic simulation using induction motor models. From the viewpoint of dynamic phenomena, the voltage collapse starts locally at the weakest node and spreads out to the other weak nodes. The main conclusions drawn from this study are as follows.
Y. Sekine, H. Ohtsuki
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Voltage collapse: case studies
Power Quality '98, 2002This paper presents an analytical approach for the identification of optimal locations and sizes of reactive power compensation required to improve power system voltage stability. The paper also describes reactive compensation planning necessary to avoid a power system collapse similar to that which occurred in Australia's Hydro-Electric Corporation ...
M. Negnevitsky, R.L. Le, M. Piekutowsky
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Voltage collapse scenario search
Proceedings. International Conference on Power System Technology, 2003A cascading failure involves seemingly unexpected loss of many critical components such as transmission lines and generators. A cascading failure often leads to separation of the system into islands and results in the loss of a substantial amount of load.
Y. Koyama +3 more
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Voltage collapse risk assessment
Electric Power Systems Research, 2000Abstract Several approaches have been proposed in the literature to analyze system voltage collapse, based on indices that can efficiently evaluate the load margin for which the system remains stable. All this discussion, including possible methods of solution, is being carried out under deterministic assumptions; load, generation and transmission ...
A.M. Leite da Silva +4 more
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Time to voltage collapse dependence of load shedding to avoid voltage collapse
2017 IEEE Electrical Power and Energy Conference (EPEC), 2017Power transmission systems of today are operating closer to their limits due to economic and environmental constrains. As a consequence, many systems around the world experience voltage collapse leading to partial or complete blackouts. Load shedding is a cost effective solution for preventing system collapse.
Tara Alzahawi +2 more
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Online fuzzy voltage collapse risk quantification
Electric Power Systems Research, 2009Abstract Many voltage stability indicators have been proposed in the past for the voltage collapse assessment. Almost all of them are determined through quite complex analytical tools; therefore, it is difficult for system operators to give them a physical meaning.
BERIZZI, ALBERTO +5 more
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Tools for Voltage Collapse Assessment
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference, 2006A variety of tools and techniques used for voltage stability analysis in power systems are discussed in this paper, with particular emphasis on their application to electricity markets. Thus, the computation of transfer capability limits, which are directly associated with the security constraints used in energy auction systems, by means of ...
C.A. Canizares, S.K.M. Kodsi
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Indicators for Voltage Collapse Margins
2010 Asia-Pacific Power and Energy Engineering Conference, 2010This paper introduces several different indices in order to characterize the voltage stability of a power system. Voltage instability is a phenomenon which often contributes to the development of power system disturbances. Therefore, is very important to know how a power system is close to voltage collapse.
Claudia Reis, F. P. Maciel Barbosa
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Dynamic mechanisms of voltage collapse
Systems & Control Letters, 1990Abstract This paper presents the result of a thorough voltage stability analysis of a simple power system. Three mechanisms of dynamic voltage collapse are incorporated: generator excitation limit, load dynamics and on-load tap-changer. The effect of each individual mechanism is analyzed first and then the combined effects are used to reconstruct a ...
Vu, Khoi T., Liu, Chen-Ching
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Dynamic simulation of voltage collapse
Conference Papers Power Industry Computer Application Conference, 1990The problem of voltage collapse is approached by simulation of a power system using a slightly modified transient stability program. A sufficiently complex system with 39 buses and ten generators is used in the simulations. The system is stressed by progressively increasing the system load through a multiplier k.
M.M. Begovic, A.G. Phadke
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