Abstract: Based on the Discrete Event-triggered Communication Scheme (DETCS) and considering actuator saturation constraint, the co-design problem was studied for Network Control System (NCS). Such co-design was between active fault-tolerant control with multi-objective constraints and network communication. First, the NCS active fault-tolerant framework and design concept were proposed by introducing event-trigger to the traditional NCS, namely, the observer of state and fault was driven by equal physical sampling period of the system, and the feedback control was driven by event with communication constraints. Second, the model of non-uniform transmission closed-loop failure system was established dedicatedly, which integrated network attribute, actuator saturation constraint, estimation value of failure, and disturbance information into one uniform framework. Third, the solving method of state and fault estimation with H_∞- performance was proposed based on generated observer. The co-design method between satisfactory failure accommodation and network communication was given for non-uniform transmission NCS. Finally, simulation experiment was conducted to verify the effectiveness and feasibility of the proposed method by a four tank benchmark example.

Key words: communication technology, time-varying failure accommodation, non-uniform transmission, satisfactory active fault-tolerant control, actuator saturation, co-design