dc.contributor.author | Khodaparast, Jalal | |
dc.contributor.author | Fosso, Olav B | |
dc.contributor.author | Molinas Cabrera, Maria Marta | |
dc.contributor.author | Suul, Jon Are Wold | |
dc.date.accessioned | 2022-12-30T08:25:31Z | |
dc.date.available | 2022-12-30T08:25:31Z | |
dc.date.created | 2022-07-19T09:07:02Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 1751-8687 | |
dc.identifier.uri | https://hdl.handle.net/11250/3040007 | |
dc.description.abstract | A framework for unified analysis of small-signal and large-signal power system stability based on static and dynamic eigenvalues is proposed in this paper. The presented implementation is based on Gear's method, which is a two-step integration method for numerical simulation with self-adaptive time-step. Furthermore, it can be easily configured for providing the state matrix as basis for calculating the system eigenvalues during simulation. Thus, the presented framework allows for eigenvalue-based analysis of small-signal dynamics and stability margin at any steady-state operating point during a time-domain simulation. Furthermore, Linear Time-Varying system theory is utilized for modal analysis during large-signal transients. For this purpose, dynamic eigenvalues and eigenvectors are calculated by solving a Riccati equation to generalize the modal analysis during transient conditions. The stability is evaluated by calculating the Lyapunov exponent of the mode-vector of the system. The results from numerical analysis of three case studies are presented to evaluate and illustrate the characteristics of the presented approach for unified small-signal and transient stability analysis. © 2022 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. | en_US |
dc.description.abstract | Static and dynamic eigenvalues in unified stability studies | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Wiley | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Static and dynamic eigenvalues in unified stability studies | en_US |
dc.title.alternative | Static and dynamic eigenvalues in unified stability studies | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.journal | IET Generation, Transmission & Distribution | en_US |
dc.identifier.doi | 10.1049/gtd2.12547 | |
dc.identifier.cristin | 2038730 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |