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Analysis of power system transient stability problems via computer simulated delta technique

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1 Author(s)

The equivalent numerical technique for the generalised delta method due to the author(2,14) are developed with a view to take advantage of the present day high speed digital computers for the analysis of power system transient stability problems. A number of power system examples have bee analysed by the equivalent numerical techniques for obtaining the transient response of the power system due to typical system disturbance. The same systems have been analysed by the well-established Runge Kutta method. The solutions obtained by both the techniques are compared. It is concluded that for the solution of transient stability problems with assumption of constant field flux linkage, the computer simulated delta technique shows a great promise when compared to Runge Kutta method with regard to: (a) the simplicity in the calculation of the state variables (b) the time required by the computer for complete computation which is an important factor considered for assessing the cost of computation. In addition to the above significant points, the so called phase-plane delta method demonstrated to be applicable to very simple configurations of the power systems (8, 12, 13) with limited accuracy has been generalised to deal with more accurate models of power systems with the help of modern high speed digital computers. It is believed, the present technique will open a new avenue for the transient stability study of power system.

Published in:

India, IEE-IERE Proceedings -  (Volume:15 ,  Issue: 1 )

Date of Publication:

January-February 1977

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