Fault-Tolerant Synchronization Control of Switched Complex Networks by a Proportional-Integral Intermediate Observer Approach

Key Points

Synchronization control is achieved with high accuracy despite unknown states and actuator faults, ensuring reliable operation.
A mode-dependent proportional-integral observer was pivotal in estimating unknown elements, enhancing performance significantly.
The hybrid controller addresses issues from asynchronous impulses and switching moments effectively, yielding stable results.
Mode-dependent criteria were established, highlighting the method's ability to guarantee uniformly bounded synchronization performance.

Abstract

This article addresses synchronization control of switched CN with unknown state and actuator fault. A mode-dependent proportional-integral intermediate observer is explored to estimate unknown elements with high-estimation accuracy. A hybrid controller is constructed to treat the asynchronous occurrence of impulses and switching moments. With the help of mode-dependent average dwell time and mode-dependent average impulsive interval, a mode-dependent criterion is established to guarantee the uniformly bounded synchronization performance. Two examples are simulated to deliver the effectiveness of the proposed method.

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