基于输入电流的牵引变流器开关管开路故障诊断方法

陈怡恬,陈特放,成庶,陈高华,王晗

Input Current-Based Diagnosis Scheme for Power Transistor Open-Circuit Faultin Traction Converter

Yitian Chen,Tefang Chen,Shu Cheng,Gaohua Chen,Han Wang

表8 第二阶段补充变量i2故障编码表

Tab.8 Fault diagnosis encode table of the supplementary variable i2 in the second phase

故障管周期 i2 变量 T1 T2 T3 T4 正常 10 00 01 00 VT2 00 00 01 00 VD1 00 00 01 01 VT1 10 00 00 00 VD2 10 10 00 00