PWM-VSI Diagnostic and Reconfiguration Method Based on Fuzzy Logic Approach for SSTPI-Fed IM Drives under IGBT OCFs

Table 1

IGBT OCF detection and identification (reproduced from M. A. Zdiri et al. 2019 (under the Creative Commons Attribution License/public domain)).

F	Faulty IGBTs
1	T1	P	N	N	L			S
2	T4	P	N	N	H			S
3	T2	N	P	N		L		B
4	T5	N	P	N		H		B
5	T3	N	N	P			L	B
6	T6	N	N	P			H	B
7	T1, T4	D						SS
8	T2, T5		D					BB
9	T3, T6			D				BB
10	T1, T2	P	P	N	L	L	H	S
11	T4, T5	P	P	N	H	H	L	S
12	T1, T3	P	N	P	L	H	L	S
13	T4, T6	P	N	P	H	L	H	S
14	T2, T3	N	P	P	H	L	L	BB
15	T5, T6	N	P	P	L	H	H	BB
16	T1, T5				LL	HH		S
17	T2, T4				HH	LL		S
18	T1, T6				LL		HH	S
19	T3, T4				HH		LL	S
20	T2, T6					LL	HH	B
21	T3, T5					HH	LL	B
22	T1, T2, T6	P	P	N	LL	L	HH	S
23	T4, T5, T3	P	P	N	HH	H	LL	S
24	T1, T3, T5	P	N	P	L	HH	LL	S
25	T4, T6, T2	P	N	P	H	LL	HH	S
26	T2, T3, T4	N	P	P	HH	LL	L	B
27	T5, T6, T1	N	P	P	LL	HH	H	B