A new trajectory approximation technique for transient stability studies

Pai, M. A. ; Sauer, P. W. ; Dobraca, F. (1991) A new trajectory approximation technique for transient stability studies International Journal of Electrical Power & Energy Systems, 13 (5). pp. 249-254. ISSN 0142-0615

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/014206...

Related URL: http://dx.doi.org/10.1016/0142-0615(91)90047-Y


In many studies involving dynamic models of power systems, fast simulation is needed such as in using direct methods of stability analysis where a number of contingencies have to be simulated in a very short time. In this paper we propose a method which uses piecewise linearization of the nonlinearities combined with trapezoidal integration of the differential equation to approximate the trajectory of a multimachine system with classical model representation. The technique is illustrated for faults on a 3- and 10-machine system and the computational savings are discussed with respect to a fourth-order Runge-Kutta method.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Trajectory Approximation; Power System Dynamic Simulation; Direct Methods
ID Code:24756
Deposited On:30 Nov 2010 09:17
Last Modified:13 Jun 2011 04:36

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