Distributed Asynchronous Periodic Event-Triggered Voltage Control of Microgrids With Different Checking Periods
2024 36th Chinese Control and Decision Conference (CCDC)(2024)
Abstract
The secondary control plays an important role in ensuring the power quality of AC island microgrid. Since the traditional time-driven secondary control strategy will cause communication redundancy, the event-triggered mechanism has been widely studied. Under the event-triggered mechanism, the DG performs necessary communication only when its own triggering condition is met. This paper studies the problem of secondary voltage control under periodic event-triggered mechanism, which can restore the output voltage to the reference value. At the same time, considering that each DG has a different sampling and checking period, this is a more general asynchronous communication problem. In the stability analysis, the conditions of event detection period and event parameters to ensure the realization of secondary control are given. Finally, the effectiveness of the mechanism is verified by several simulations.
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Key words
Periodic event-triggered control,distributed secondary control,islanded microgrids,asynchronous communication
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