H∞ Reliable Bumpless Transfer Control for Switched Systems: A Mixed State/time Dependent Switching Method

This study is devoted to reliable bumpless transfer control for switched systems with actuator faults. Through construction of a switching strategy and a class of reliable controllers via output feedback, the bumpless transfer performance and H
∞
reliable property of the closed-loop systems are ensured. The switching strategy consists of two parts, that is dwell time and state-dependent switching ones. In the dwell time stage, a low bound of the subsystem activated time is introduced to restrict the frequent switching and designed to reduce the control bumps. The bumpless transfer performance of systems is guaranteed. In the second stage, only the controller states are used to generate the switching signals, which guarantees the feasibility in the frame of output feedback. Finally, to ensure the H
∞
reliable property, the time-varying controllers are constructed, which work in the different switching stages. A verification of the developed control scheme is given to demonstrate the effectiveness of the proposed control scheme.