Distributed Event-triggered Fixed-time Optimal Dispatch Control for Cyber-Physical Islanded DC Microgrids Incorporating Time Delays

This study proposes a distributed Event-triggered fixed-time (ET -FxT) cooperative control strategy for optimizing generation costs in DC Microgrids (MGs), which is subjected to communication resource constraints and input time delays. Initially, Artstein's reduction method was applied to transform the time-delay system into a model without delays, aiming to improve system stability. Following this, an ET -FxT distributed algorithm is introduced for cost minimization, designed to balance the incremental costs (I Cs) of all distributed generators (DGs) within an accelerated settling time, while respecting the bandwidth constraints of communication network. Additionally, a distributed control approach is presented for achieving FxT voltage stability, ensuring a balance between generations and consumptions in the MG. The validity of this control method is demonstrated through numerous comprehensive case studies.