Results 111 to 120 of about 81,542 (163)
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Fast Transient Stability Assessment Revisited
IEEE Power Engineering Review, 1986Energy Liapunov-like criteria are devised, their essential characteristics are assessed, and, depending upon the particular needs they are called to meet,the most appropriate among them are identified. The criteria derive from the conjunction of various Liapunov-like functions ("global", "individual", and Taylor series based ones) with two different ...
B. Toumi +3 more
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Risk-based transient stability assessment
PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003It is shown how to obtain the probability of transient instability and how the different types of uncertainty can be included. An evaluation is made of the severity or consequences of the loss of a generator caused by an out of step condition. While calculating the probability, the transient stability performance of the system needs to be quantified ...
V. Van Acker +3 more
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Direct Transient Stability Assessment with Excitation Control
IEEE Power Engineering Review, 1989The authors extended the applicability of the transient energy function method by incorporating the exciter effects in the energy of a multimachine power system during the first swing transient. The generator was represented by the two-axis model and the exciter was represented by one gain, one time constant, and one limiter. In this study they compute
A.-A.A. Fouad +7 more
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Transient stability probability assessment and statistical estimation
Electric Power Systems Research, 2003Abstract In the paper, a general analytical method for the probabilistic evaluation of power system transient stability is discussed and a new statistical inference approach for this evaluation is proposed. In particular, the transient stability probability (TSP) is defined and evaluated by taking into account the random nature of both the system ...
F. ALLELLA, CHIODO, ELIO, LAURIA, DAVIDE
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A parallel transient stability limit search method for online transient stability assessment
2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005In this paper, a modified signal energy method called the envelope method will first be proposed to estimate the transient stability limit, and then a parallel envelope method is developed to speed up the limit search for online applications. A new weighting limit estimation formula is used for improving the estimation accuracy and minimizing of the ...
M.J. Jin +4 more
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Transient Stability Assessment For Unbalanced Faults
Proceedings II of the 27st Conference STUDENT EEICT 2021, 2021The paper describes the model applicable for transient stability assessment for unbalancedfaults. The model itself is derived using symmetrical component representation of the grid. Sensitivityanalysis of zero sequence line reactance, fault location and line length was done using the builtmodel, the influence of unbalanced faults was discussed.
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Online Transient Stability Assessment
2014With the advent of deregulation in the power industry and a lack of transmission investment, today’s power systems are operated much closer to their limits. Stressed system conditions mean that operators are faced with scenarios that never occurred in the past.
Mladen Kezunovic +3 more
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Basics of Transient Stability Assessment
2021The basic concepts of transient rotor angle stability are presented in this chapter. The synchronous machine model with its auxiliary controllers and load models are discussed. The procedure to combine all dynamic models with the transmission network model to perform a dynamic simulation is presented.
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Probabilistic considerations in transient stability assessment
Canadian Electrical Engineering Journal, 1979Discusses transient stability evaluation of a power system from a probabilistic viewpoint. The random nature of the basic factor such as the type, location, and clearance of faults which affect the transient stability performance is demonstrated.
R. Billinton, P. R. S. Kuruganty
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Corrected transient energy function and transient stability limit assessment
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002This paper reports the developments in the methodology for analysis of transient stability limit conditions. Concepts, including corrected potential energy and corrected potential energy boundary surface, are presented. Efficient criteria in identifying first swing stability behavior are also developed and used in hybrid method incorporating corrected ...
T.S. Chung, D.Z. Fang
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