Faults Detection of Nonlinear NCS Subject to Times Delays Using Multi-Model Approach: Application to Induction Motor

In this paper, we present a fault detection filter for the induction motor speed as class of nonlinear system in networked control systems (NCSs) subject to induced times delays. The induced times delays is from the controller to the plant and from the sensor to the controller. First the nonlinear system used in this paper is an Induction motor that is modeled as multimodel system. Then an adaptive state filter is derived from augmented state version of the proposed detection filter which can provide the information of faults and states of the induction motor. An example is included to show the efficiency of the proposed method