Event-triggered H ∞ bumpless transfer control for switched neutral systems under asynchronous switching

The event-triggered H∞ bumpless transfer control is investigated for switched neutral systems with time-varying delays and external disturbances under asynchronous switching. To reduce communication burden and achieve smoother control inputs, a novel mode-dependent event-triggered bumpless transfer (ETBT) control strategy is designed. Then, based on the proposed ETBT control strategy, the event-triggered asynchronous control behaviour between subsystems and their corresponding controllers is studied. By employing the mode-dependent average dwell time and multiple Lyapunov function approaches, sufficient conditions are derived to guarantee globally uniformly exponential stability and H∞ performance of the closed-loop system under asynchronous switching. Moreover, it is proven that the event-triggering interval has a strictly positive lower bound, thereby excluding Zeno behaviour. Finally, two examples are presented to verify the feasibility of the proposed strategy.