Inertial and slow coherency aggregation algorithms for power system dynamic model reduction
- Rensselaer Polytechnic Inst., Troy, NY (United States)
- Spectrum Technologies, Schenectady, NY (United States)
- GE Industrial and Power Systems, Schenectady, NY (United States). Power Systems Engineering Dept.
This paper presents new aggregation algorithms for obtaining reduced order power networks when coherent generators are aggregated. The generation terminal bus aggregation algorithm in the EPRI DYNRED software tends to stiffen the reduced order network during the aggregation process, thus increasing the frequencies of inter-area modes. The inertial and slow coherency aggregations will decrease the stiffening effect and produce, for the same coherent machine groups, aggregate networks with improved inter-area mode approximations. This paper contains new procedures to construct these aggregate networks and demonstrates the benefits of these new aggregate networks on a 48-machine system using eigenvalues and nonlinear simulations.
- OSTI ID:
- 82662
- Report Number(s):
- CONF-940702-; ISSN 0885-8950; TRN: IM9533%%120
- Journal Information:
- IEEE Transactions on Power Systems, Vol. 10, Issue 2; Conference: 1994 Institute of Electrical and Electronic Engineers/Power Engineering Society (IEEE/PES) summer meeting, San Francisco, CA (United States), 24-28 Jul 1994; Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dynamic reduction, Version 1.0. Volume 1: Final report
Optimal aggregation of electric power system dynamic models