基于开关组误差电压的双级矩阵变换器故障诊断策略

邓文浪,黄斯瑶,郭有贵,刘和,余帅

Fault Diagnosis Strategy in Two-Stage Matrix Converter Based on Switch Group Error Voltage

Wenlang Deng,Siyao Huang,Yougui Guo,He Liu,shuai Yu

表2 整流级上桥臂开关故障时逆变级输出相电压故障特征

Tab.2 Output phase voltage characteristics under the switch failure in above bridge of rectifier stage

i_dc	S_ApS_BpS_Cp	正常情况输出三相相电压			整流级故障输出三相相电压			输出相电压误差
i_dc	S_ApS_BpS_Cp	u_A	u_B	u_C	u_Am	u_Bm	u_Cm	ε_A	ε_B	ε_C
>0	000	v_n	v_n	v_n	v_n	v_n	v_n	0	0	0
	001	v_n	v_n	v_p	v_n	v_n	v_n	0	0	v_n-v_p
	010	v_n	v_p	v_n	v_n	v_n	v_n	0	v_n-v_p	0
	011	v_n	v_p	v_p	v_n	v_n	v_n	0	v_n-v_p	v_n-v_p
	111	v_p	v_p	v_p	v_n	v_n	v_n	v_n-v_p	v_n-v_p	v_n-v_p
	100	v_p	v_n	v_n	v_n	v_n	v_n	v_n-v_p	0	0
	101	v_p	v_n	v_p	v_n	v_n	v_n	v_n-v_p	0	v_n-v_p
	110	v_p	v_p	v_n	v_n	v_n	v_n	v_n-v_p	v_n-v_p	0