Rectifier Fault Diagnosis and Fault Tolerance of a Doubly Fed Brushless Starter Generator

Table 1

Classification of diode open faults.

Item	Fault type	Example
T1	One diode or two diodes of the same loop open circuit	D1, D3, D5, D7, D2, D4, D6, D8, D1D4, D3D2, D5D8, D7D6
T2	Other two diodes or more of the same channel open circuit	D1D3, D5D7, D2D4, D6D8, D1D2, D3D4, D5D6, D7D8, D1D2D3
T3	Two diodes of the different channel open circuit	D1D5, D3D7, D2D6, D4D8, D1D6, D1D8, D3D6, D3D8, D5D2, D5D4, D7D2, D7D4
T4	Three diodes of the different channel open circuit	D1D2D5, D1D2D6