Fault Tolerant Technique for 3n- Phase Induction Motor Drives under Open-Winding Fault Condition

The increasing capabilities of power electronics have led to the rise in usage of poly-phase machines for industrial applications. These are preferred over conventional three-phase IMs due to their superior performance and reliability. However, further research is needed to enhance the reliability of multi-phase IMs with faulty windings. This paper introduces a converter topology and a scheme for the reliable working of 3n-phase drives under open-winding fault condition. Verification of the results are made on the 9-Phase IM drive using Ansys Maxwell simulation and further evaluated by hardware implementation. The findings exhibit the proposed concepts are effective in maintaining the performance of the nine-phase IM even during fault conditions. This research contributes to the ongoing effort to enhance the reliability of multiphase IMs in industrial applications.