An Improved MPC-Based SVPWM Mechanism for NPC Three-Level Z-Source Converters

Table 1

Different states and output voltage.

Mode	Turn-on switches	Output voltage
1	SX1, SX2, D1, D2	Vi/2
0	SX2, SX3, D1, D2	0
−1	SX3, SX4, D1, D2	−Vi/2
U	SX1, SX2, SX3, D1	0 or −Vi
D	SX2, SX3, SX4, D2	0 or Vi

Here, X = A, B, or C.