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This article investigates a problem of event-triggered controller design for DC microgrid, in which multiple nonlinear Constant power loads (CPLs) and probabilistic actuator fault are considered. A novel pre-averaged event-triggered mechanism (PAETM) is put forward, under which the average value of each time interval is used to determine the triggering instead of using the sample data that represents the system characteristic partially. Benefit from this mechanism, triggering events are reduced and the network burden is mitigated while the system performance is ensured, which contributes to a higher efficiency for DC microgrid. Considering various disturbances in DC microgrid, a unified PAETM controller design for DC microgrid with probabilistic distribution actuator fault and disturbance is proposed. Finally, a simulation example is shown to illustrate the validity of the proposed control strategy.

A Novel Event-Triggered Control of DC Microgrids Against Probabilistic Actuator Fault