An IFOC-DSVPWM Based DC-Link Voltage Compensation of Z-Source Inverter Fed Induction Motor Drive for EVs

Table 4

Hardware results comparison of VSI and ZSI drives with load-torque step change from no load to 30% load as reference speed of 750 rpm at 600 V DC-link voltage.

	SVPWM-VSI drive			DSVPWM-ZSI drive
Load torque	Overshoot of speed		Voltage (volts)	Speed peak (rpm)		Voltage (volts)
	Min.	Max.	DC-link	Min.	Max.	Input	DC-link
10%	98%	101%	95.83%	99.73%	100.266%	97.5%	100%
20%	97%	102%	91.67%	99.8%	100.266%	95%	100%
30%	98%	101%	86.67%	99.73%	100.266%	92.5%	100%