| Abstract |
This paper presents a process for characterizing the oscillatory dynamics of a large bulk power system. As a demonstration, the process is applied to the Western Interconnection of North America. Several complementary analysis approaches, both new and existing, are employed to provide a comprehensive understanding of the oscillatory properties of the system. Established modal analysis techniques based on ringdown and mode-meter algorithms are utilized. In addition, we derive and apply methods based on spectral correlation analysis to identify modal frequencies, distinguish between modes that are closely spaced in frequency, and determine locations at which the modes are observable. Critical interarea modes are identified and characterized using actual-system synchrophasor measurements taken over several years of operation in concert with industry-standard simulation models. This includes 145 hours of PMU data and two planning base cases. |
| Authors |
Daniel Trudnowski  , Jim Follum , Ryan Elliott , David Schoenwald , John W. Pierre 
|
| Journal Info |
Institute of Electrical and Electronics Engineers | IEEE Access , pages: 1 - 1
|
| Publication Date |
2/18/2025 |
| ISSN |
2169-3536 |
Type |
article |
| Open Access |
gold
|
| DOI |
https://doi.org/10.1109/access.2025.3543457 |
| Keywords |
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