Carrier-Based Common Mode Voltage Control Techniques in Three-Level Diode-Clamped Inverter

Figure 7

Common mode voltages in (a) 2-level inverter, (b) PD SPWM, (c) PD SPWM with offset voltage signal, (d) POD SPWM, and (e) POD with offset voltage signal.

(a)

(b)

(c)

(d)

(e)