FUZZY MODELING AND FAULT DETECTION FOR NETWORKED CONTROL SYSTEMS

摘要

Networked control systems (NCS) are systems with at least one loop closed through data networks. NCS have many advantages compared with traditional systems, but the network-induced time delay and other peculiarities of communication channel will degrade the performance of closed-loop systems. In this paper, we focused on NCS with random time delays. New models, the so-called 'quasi T-S fuzzy models', for linear and nonlinear NCS with random time delays were presented, the stability of closed-loop system was discussed, and based on these fuzzy models, fault detection problems for NCS were addressed. Finally, a simulation example was given.