Performance Evaluation of SuperLU and PARDISO in Power System Load Flow Calculations

This paper evaluates the performances of two direct linear system solvers, which are the SuperLU and the PARDISO, in the calculation of power system load flow. The objective is to share experience in their performance in power flow solution. There are five sub processes in a power flow algorithm. Within these sub-processes, dominant total execution times are the ones associated with the solution of a set of linear equations. Two well-known sparse direct linear system solvers are employed to carry out the computations. Results obtained show that the SuperLU solver offers a better performance by having a faster execution time in these two sub-processes for all tested cases. A variety of standard test systems, including IEEE 118 bus, 300 bus, and practical utilities of 664 bus, and FERC 4995bus are used to validate the results.

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W artykule oceniono właściwości metod SuperLU i PARDISO w zastosowaniu do obliczeń przepływu obciążeń. Przeprowadzono obliczenia dla dwóch rozproszonych systemów. Stwierdzono, że SuperLU umożliwia szybsze rozwiązanie problemu. Zbadano różne standardowe systemy, jak IEEE 118 czy FERC 4995.