An Enhanced Half-Quasi-Z-Source Inverter for Wind Energy Conversion System with D-PMSG

Figure 16

Experimental results of the stator current frequency spectrum when the PMSG rotates at 1500 RPM. (a) With half-quasi-Z-source inverter. (b) With enhanced half-quasi-Z-source inverter. (c) With enhanced half-quasi-Z-source inverter and the periodic shoot-through duty ratio control method.

(a)

(b)

(c)