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Loss of voltage controllability as a cause of voltage collapse
Proceedings of the 27th IEEE Conference on Decision and Control, 2003Voltage stability and controllability definitions are proposed that can be applied at any time instant along the transient stability model trajectory or at the equilibrium point. Voltage controllability is defined at PQ buses. Conditions on sensitivity matrices that guarantee voltage controllability are then developed.
R.A. Schlueter, M.W. Chang, A. Costi
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Indicating and mitigating voltage collapse comparing voltage stability indicators
2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe), 2012Novel measures to indicate and mitigate voltage collapse in the power system are presented in this paper. The functionality of conventional and unconventional indicators and mitigating actions are tested in a case study using the IEEE Reliability Test System 1996.
Vegar Storvann +2 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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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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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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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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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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Estimation of time to voltage collapse
2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC), 2016Finding out remained time to voltage instability occurrence is necessary to make a timely decision on corrective actions. This paper presents a novel method for discovering time to long term voltage instability. The method is based on virtually acceleration of OLTCs' operation during time domain simulation in order to realizing detection of long ...
M. Khalilifar +3 more
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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 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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