Sliding Mode-Based Active Fault-Tolerant Control for Induction Machine

摘要

This paper proposes an inductionmachine stator inter-turn short-circuit fault diagnosis and tolerance based on slidingmode. ALyapunov stability-based integral sliding mode control is designed and kept in a healthy and faulty case. An online diagnosisusing a high-order sliding mode observer allows the fault detection and phase identification on the one hand and providessignal alarm on the other. When the fault overcome such level, the proposed control cannot deal with the inter-turn shortcircuitfault. So, it should be reconfigured. The signal alarm triggers the switch between affected stator current and healthyreconstructed ones. Then, fault impact will compensate and the integral sliding mode control still achieves the objectives. Thesimulation results are presented to illustrate the proposed fault-tolerant design.