| Autor: |
Ge Cao, Guannan Lou, Wei Gu, Lina Sheng |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
CSEE Journal of Power and Energy Systems, Vol 10, Iss 2, Pp 696-706 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2096-0042 |
| DOI: |
10.17775/CSEEJPES.2020.04110 |
| Popis: |
The physical connections and logical relationships between microgrids and communication networks allow microgrids to develop into typical cyber-physical systems (CPSs). With the extensive use of open communication mechanisms, the impact of cyber disturbances in public communication networks cannot be diminshed. In this paper, a parameter optimal method for a distributed secondary controller based on the robust control theory and consensus algorithm is presented to enhance the robustness of a secondary control system under data disturbance, parameter perturbation, and time delay. First, a distributed secondary control strategy of microgrids is demonstrated that coordinates frequency and voltage restoration and power sharing. Then, considering the impact of cyber events on the secondary control, a distributed robust controller gain design method is proposed to satisfy the $\boldsymbol{H}_{\infty}$ performance index. The solution of the distributed robust control is transformed into a linear matrix in equation problem and latency margin is simultaneously obtained. Finally, a test microgrid CPS is simulated with and without time delay to investigate the impact of cyber events on system operational states and the effectiveness and robustness of the proposed method. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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