Fault Tolerance Control and Diagnosis of Induction Machine Under Stator Fault Conditions

Study fault-tolerant control (FTC) systems it's a new area of research devoted to controlling and detecting incipient faults. It is important to study the adaptation of the control law to preserve pre-specified performances in terms of quality of the production and even safety. Fault-tolerant control consists of fault diagnosis and re-design of the controller during operation. The induction motor is an important part of industrial systems. Then, the robustness and the performance control have to be taken into account in the design of the machine. This paper proposes an optimal vector control under inter-turn stator fault. We apply a technique for a control-tolerant to inter-turn short-circuit faults, allowing to achieve the machine's performances while keeping the control's robustness. The design of the controller works in such a way that the control of the feedback speed of the induction motor will only be controlled by the proportional-integral PI performance controller for a nominal model without disturbance and with disturbance. Finally, using Simulink of MATLAB, the simulation results demonstrate the proposed model's effectiveness and good performance.