A Single-Stage Buck-Boost Three-Level Neutral-Point-Clamped Inverter with Two Input Sources for the Grid-Tied Photovoltaic Power Generation

Figure 6

Equivalent circuits of dual-source AE-NPC inverter when (a) SW = ON and SW’ = OFF, (b) SW = OFF and SW’ = ON, and (c) SW = SW’ = ON.

(a)

(b)

(c)