Journal article
Super-Positioning of Voltage Sources for Fast Assessment of Wide-Area Thévenin Equivalents
Department of Electrical Engineering, Technical University of Denmark1
Center for Electric Power and Energy, Centers, Technical University of Denmark2
Smart Electric Components, Center for Electric Power and Energy, Centers, Technical University of Denmark3
Electric Power Systems, Center for Electric Power and Energy, Centers, 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: | 2017 |
| Pages: | 1488-1493 |
| ISSN: | 19493061 and 19493053 |
| Types: | Journal article |
| DOI: | 10.1109/TSG.2016.2639559 |
| ORCIDs: | Møller, Jakob Glarbo , Jóhannsson, Hjörtur and Østergaard, Jacob |
Admittance Algorithm design and analysis Generators Impedance Power system stability Program processors Stability analysis Thévenin equivalent representation network admittance matrix power system analysis power system analysis computing power systems superimposing voltage sources wide-area Thévenin equivalents
