A 7-Level Single DC Source Cascaded H-Bridge Multilevel Inverter with a Modified DTC Scheme for Induction Motor-Based Electric Vehicle Propulsion

Table 1

7-Level asymmetric cascaded inverter switching states.

𝑛𝑙	Cell 1			Cell 2			Total
	𝑆11	𝑆12	𝑣𝑎1	𝑆21	𝑆22	𝑣𝑎2	𝑣𝑎𝑁
1	1	0	3𝑣DC	0	0	0	3𝑣DC
2	1	0	3𝑣DC	0	1	−𝑣DC	2𝑣DC
3	0	0	0	1	0	𝑣DC	𝑣DC
4	0	0	0	0	0	0	0
5	0	0	0	0	1	−𝑣DC	−𝑣DC
6	0	1	−3𝑣DC	1	0	𝑣DC	−2𝑣DC
7	0	1	−3𝑣DC	0	0	0	−3𝑣DC