Abstract
This paper presents the development of a new time domain simulation program for the computation of electromagnetic transients over a wide frequency spectrum. The application of the program to investigate the Subsynchronous Resonance phenomenon is given. The proposed technique depends on applying the implicit trapezoidal integration method to the differential equations simultaneously to get algebraic equations which are solved simultaneously using the Newton-Raphson method. The sparsity technique and factorization have been adopted to reduce computing time and storage. The IEEE Benchmark model is used to apply the proposed technique. The results of the new technique have been compared with the results of both the EMTP technique and the Runge-Kutta-Merson method. The comparison shows the superiority of the proposed technique.
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