Event-triggered asynchronous periodic distributed secondary control of microgrids under DoS attacks |
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| Institution: | 1. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410000, China;2. School of Aeronautics and Astronautics, Sun Yat-sen University, Shenzhen 518055, China;3. Shenzhen Key Laboratory of Visual Object Detection and Recognition, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China;4. School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen 518055, China;1. School of Mathematics and Physics, Jinggangshan University, Ji’an, 343009, China;2. School of Mathematical Sciences, Tongji University, Shanghai, 200092, China;3. College of Mechanical and Electrical Engineering, Jinggangshan University, Ji’an 343009, China;1. School of Mathematics and Statistics & FJKLMAA, Fujian Normal University, Fuzhou 350117, PR China;2. School of Big Data, Fuzhou University of International Studies and Trade, Fuzhou 350202, PR China |
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| Abstract: | A novel distributed secondary voltage and frequency control strategy is proposed with the Zeno-free event-triggered scheme for an island alternating current (AC) microgrid under Denial-of-Service (DoS) attacks. A DoS attack compensation mechanism and an event-triggered mechanism on the basis of the checking scheme are developed. Then, a secure event-checked based event-triggered secondary control method is explored to guarantee the tracking performance of the microgrid under DoS attacks. Further, some linear matrix inequalities (LMIs)-based sufficient conditions are derived to design the controller. What’s more, the proposed asynchronous periodic triggering method can efficiently save communication resources and further reduce the update number of the controller. Finally, the efficiency of this work is verified by an islanded AC microgrid with comparisons. |
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