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Parallel implementation of a power system dynamic simulation methodology using the conjugate gradient method

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3 Author(s)
Decker, I.C. ; COPPE-E, Federal Univ. of Rio de Janeiro, Brazil ; Falcao, D.M. ; Kaszkurewicz, E.

The authors present results of tests with a parallel implementation of a power system dynamic simulation methodology for transient stability analysis in a parallel computer. The test system is a planned configuration of the interconnected Brazilian South-Southeastern power system with 616 buses, 995 lines, and 88 generators. The parallel machine used in the computer simulation is a distributed memory multiprocessor arranged in a hypercube topology architecture. The nodes are based on the Inmos T800 processors with 4 Mbytes of local memory. The simulation methodology is based on the interlaced alternating implicit integration scheme in which the network equations are re-ordered such that the network admittance matrix appears in the block bordered diagonal form and is then solved by a combined application of the LU factorization and the conjugate gradient method. The results obtained show considerable reduction in the simulation time

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Power Systems, IEEE Transactions on  (Volume:7 ,  Issue: 1 )