基于磁动势平衡的T型三电平逆变器驱动双三相永磁同步电机开路故障诊断

This article proposes a fast diagnosis method for single-open-switch and single-open-phase faults in T-type three-level inverter-fed dual-three-phase PMSM drives, based on magnetomotive force (MMF) balance. By extracting MMF balance degree features between the abc and def three-phase subsystems, this method enables hierarchical fault diagnosis across three stages: Identifying the fault-occurred th...