Conference paper
Super-Positioning of Voltage Sources for Fast Assessment of Wide-Area Thévenin Equivalents
Smart Electric Components, Center for Electric Power and Energy, Centers, Technical University of Denmark1
Electric Power Systems, Center for Electric Power and Energy, Centers, Technical University of Denmark2
Center for Electric Power and Energy, Centers, Technical University of Denmark3
Department of Electrical Engineering, Technical University of Denmark4
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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2018 |
| Pages: | 1-1 |
| Proceedings: | 2018 IEEE Power & Energy Society General Meeting |
| ISBN: | 1538677024 , 1538677032 , 1538677040 , 9781538677025 , 9781538677032 and 9781538677049 |
| ISSN: | 19449933 and 19449925 |
| Types: | Conference paper |
| DOI: | 10.1109/PESGM.2018.8585962 |
| ORCIDs: | Møller, Jakob Glarbo , Jóhannsson, Hjörtur and Østergaard, Jacob |
Admittance Jacobian matrices Schur's complement Sparse matrices Thévenin equivalent method Thévenin equivalent representation contingency assessment fast assessment network admittance matrix optimal computation re-use reference method shared memory multiprocessing shared memory systems sparse matrices sparse triangular solver super-positioning test systems voltage sources wide-area Thévenin equivalents
