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Fast Online Dynamic Voltage Instability Prediction and Voltage Stability Classification

IET Generation, Transmission and Distribution, 2014
In this study, a novel approach is proposed for fast prediction of dynamic voltage instability occurrence (as a short term phenomenon and/or a long term one) and voltage stability stiffness of the system, against load disturbances. The main contribution of this paper is in introducing a procedure for generating novel features to be applied to a pattern
Hamid Khoshkhoo, Seyed Mohammad Shahrtash   +1 more
exaly   +2 more sources

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Voltage Instability Indicators

2015
In the first section of the chapter, we discuss how to recognise voltage instability using reliable indices, mainly those having real-time performance. The introduction provides a general overview of voltage stability indices (VSI) as proposed in the literature, distinguishing the great amount of VSI that fall into the off-line category from the few ...
openaire   +1 more source

Voltage instability/collapse - an overview

IEE Colloquium on Voltage Collapse, 1997
Voltage instability and voltage collapse are a frequent concern on heavily stressed power systems. This paper contains an overview of what, in the author's view, are the main aspects to be considered when addressing such problems. Also included in the paper is a review of some of the analytical tools that are available for voltage stability analysis ...
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Mitigations of voltage instability in power systems

2009 IEEE Electrical Power & Energy Conference (EPEC), 2009
This paper reports on various solutions proffered to mitigate voltage stability problems in power systems. Many papers in power engineering literature have presented many contributions in these area, recent papers presented the use of shunt and series capacitors for compensation of reactive power in power networks.
L.C Azimoh, K.A Folly, S.P Chowdhury
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Subtransmission reduction for voltage instability analysis

IEEE Transactions on Power Systems, 1993
A new method for creating power flow subtransmission equivalents to be used in voltage instability analysis is presented. The reasons for performing subtransmission reduction are given. How the subtransmission reduction problems differs from more traditional reduction problems is shown.
J.D. McCalley, J.F. Dorsey, J.F. Luini, R.P. Mackin, G.H. Molina   +4 more
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An analysis of mechanisms of voltage instability

[Proceedings] 1992 IEEE International Symposium on Circuits and Systems, 2003
Analyzing mechanisms of voltage instability is necessary for an understanding of the physical phenomenon and a development of control actions. The author reviews some analytical properties of voltage instability as related to tap-changing operations, load dynamics, and generator excitation limits. The analytical results are related to the physical role
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Voltage-Driven Instability of Electrically Conducting Fluids

2003
This paper consists of two parts dealing with magnetohydrodynamic pinch instabilities in cylindrical and in planar geometry.
Zienicke, Egbert, Seehafer, Norbert (Prof. Dr.), Li, B.-W., Schumacher, Jörg, Politano, H., Thess, H.   +5 more
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A learning scheme against voltage instability

8th International Conference on Advances in Power System Control, Operation and Management (APSCOM 2009), 2009
A genetic learning scheme is proposed for coordinated voltage control (CVC). This leaning control combines GA with a long term memory. The optimal search of GA can refine the knowledge in memory. At the same time, stored knowledge can be exploited to improve the search of GA.
null Haomin Ma, null Ka Wing Chan, null Wei Ren, null Jingang Yang, null Dazhong Fang   +4 more
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Voltage instability: mechanisms and control strategies [power systems]

Proceedings of the IEEE, 1995
One of the main objectives in operating an electric power system is to maintain a proper voltage level throughout the system. Failure to do so can lead to equipment damage and blackouts. The article discusses the nonlinear aspects of power systems, with emphasis on voltage instability. It provides an overview of the state-of-the-art on the analysis and
Khoi T. Vu, Chen-Ching Liu, Carson W. Taylor, Kebede M. Jimma   +3 more
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Current regulator instabilities on parallel voltage-source inverters

IEEE Transactions on Industry Applications, 1999
Parallel inverters are often used to meet system power requirements beyond the capacity of the largest single structure. They have also been used to reduce harmonics, reduce pulsewidth modulation (PWM) switching frequency and increase available output voltage or frequency.
J. Thunes, R. Kerkman, D. Schlegel, T. Rowan   +3 more
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