Fault-Tolerant Control Strategy for Neutral-Point-Clamped Three-Level Inverter

Table 1

Switching states in NPC three-level inverter.

Switching states	Switching sequence
	QA1	QA2	QA3	QA4	D1	D2	D3	D4	D5	D6
P+
P−
O+
O−
N+
N−