A method for superimposing voltage sources is sought optimized by using a sparse triangular solver and multiprocessing. A revision to the method is suggested which exploits Schur’s complement of the network admittance matrix and optimal re-use of computations. The algorithm is implemented and parallelized for shared memory multiprocessing. The proposed algorithm is tested on a collection of large test systems and performance is found to be significantly better than the reference method. The algorithm will thereby facilitate a speed-up of methods relying on Thévenin equivalent representation such as the Thévenin equivalent method for contingency assessment.
|Title of host publication||Proceedings of the 2018 IEEE PES General Meeting|
|Publication status||Published - 2018|
|Event||2018 IEEE Power & Energy Society General Meeting - Oregon Convention Center, Portland, United States|
Duration: 5 Aug 2018 → 10 Aug 2018
|Conference||2018 IEEE Power & Energy Society General Meeting|
|Location||Oregon Convention Center|
|Period||05/08/2018 → 10/08/2018|