三电平桥式变换器开路故障诊断与容错控制方案

A novel fault diagnosis method and a fault tolerant scheme for open-circuit faults on a traction rectifier are proposed in this paper. When an open-circuit fault occurs in any leg of the rectifier, indication will be generated accurately to identify the faulty leg without utilization of any extra sensors. Furthermore, the faulty rectifier can be reconfigured to maintain its full output rate to pre...