基于NPC的DAB变换器无传感器开路故障诊断方法

Open-circuit fault (OCF) on power switches can cause a severe threat to operation and safety of power electronic converters. In the neutral-point-clamped (NPC)-based dual-active-bridge (DAB) converters, the OCFs will result in an increase in the current stress, dc bias, and capacitor voltage imbalance. In order to address these issues, the faulty switch should be identified so that a fault-toleran...