FTC of Three-phase Induction Motor Drives under Current Sensor Faults

In this study, single-phase current sensor Fault-Tolerant Control (FTC) for Three-Phase Induction Motor (TPIM) drives using a flux observer is proposed. In the proposed FTC scheme, a ۳rd difference operator executes the Fault Detection (FD) task and the reconstruction of the faulted current is achieved through a flux observer. The presented FTC system is able to switch TPIM drive systems from normal mode to the faulty mode suitably. The proposed method in this study can be utilized in many industries particularly in electric vehicles, medical devices, and aerospace where TPIM drive systems are needed to continue the desired operation even during fault situations. The effectiveness of the proposed FTC system is confirmed by experiments on a ۰.۷۵kW TPIM drive platform.

کلیدواژه ها:

Fault-Tolerant control ، flux observer ، single-phase current sensor fault ، ۳rd difference operator ، three-phase induction motor