| Autor: |
Ahmad Khan, Mohammad B. Shadmand, Sudip K. Mazumder |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 10, Pp 98329-98347 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2022.3206025 |
| Popis: |
This article presents an intrusion detection system (IDS) for a multi-layer-controlled power electronics-dominated grid (PEDG). This IDS improves the situational awareness of PEDG against malicious set-points from a compromised upper control layer. Firstly, a mathematical theory is developed for deriving a safe operation region. This mathematical theory extends the stability margins inferred from $P-V$ curves to the abstract concept of morphisms. Particularly, there are two morphisms for each point of common coupling (PCC) bus when operating in the safe operation region: (Morphism 1) PCC bus voltage mapped to network set-points, and (Morphism 2) network set-points mapped to PCC bus voltage. Morphism 1 is used for anomaly detection. Explicitly, observation of a non-zero imaginary-part in the PCC voltage $L_{2}$ norm is evidence of an anomaly. Morphism 2 is utilized for independent decision making at the primary layer of the dispersed energy generator (DEG) during intrusion scenarios. Morphism 2 is an alternative for the secondary layer when the dispatched set-points are not trusted. The theoretical analysis is verified by several case studies to substantiate the situational awareness against malicious set-points and consequently enhancing the cybersecurity aspects of the PEDG. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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