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# Synchronous Machine Transient Stability Ayalysis by an Extension to the Point by Point Method of Solution of the Swing Equation

 dc.contributor.author Karunaratne, S dc.contributor.author Wijayatunga, PDC dc.date.accessioned 2016-06-03T08:19:29Z dc.date.available 2016-06-03T08:19:29Z dc.date.issued 2016-06-03 dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/11787 dc.description.abstract Power System transient stability study is a major component of the Power en_US System course offered in many undergraduate programmes in Electrical Engineering " 'hen the transient stability of a power system is analysed, the transient stability of the rotating synchronous machines connected to the system should be analysed individually or in groups. In transient stability analysis, a synchronous machine is described by a set of differential equations. The type and the number of differential equations needed to represent a single machine depend on the complexity of the model used. But in any model, the swing equation (a second order differential equation) which describes the motion of the rotor under transient conditions, is essentially included. Therefore the simplest representation of a synchronous machine is the swing equation of the machine. The solution of the swing equation of a given machine provides basic information to determine the stability of the machine under transient conditions. The swing equation relating the relative motion of the rotor with time could be solved using any method used for the solution of ordinary differential equations. When the calculations are carried out on a digital computer, modified Euler and fourth-order Runga-Kutta methods are commonly used. But the point by point method developed by Dhal in 1938 is mostly used to solve the swing equation in simple cases where hand calculations are involved. When simple transient stability problems are solved in the classroom to illustrate the behaviour of the machine, the point by point method is preferred because of its simplicity. In this paper an important modification to improve this method is discussed. dc.language.iso en en_US dc.title Synchronous Machine Transient Stability Ayalysis by an Extension to the Point by Point Method of Solution of the Swing Equation en_US dc.type Article-Full-text en_US dc.identifier.year 1990 en_US dc.identifier.journal International Journal of Electrical Engineering Education en_US dc.identifier.volume Vol. 37 en_US dc.identifier.pgnos pp. 37-44 en_US
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