Abstract

A new control method for the hybrid multi-source islanded microgrid system is proposed in this study, which aims to maintain a stable voltage of DC bus under the premise of meeting the power demand of load, and to realize the undifferentiated regulation of frequency and voltage, ensuring system reliability. Contrary to the traditional centralized strategies, the established control method is based on the distributed structure, requiring only sparse communication network information exchange among neighboring distributed generators (DGs). Additionally, it is demonstrated that the proposed method improves synchronization performance and exhibits accurate robustness to model parameter uncertainty. The results of the simulation from an island microgrid test system are presented as the demonstration of the performance of the proposed control strategy.

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