Modified Space Vector Modulation for Cascaded H-Bridge Multilevel Inverter with Open-Circuit Power Cells

Table 3

Comparison of detected fault method for multilevel inverters.

Comparison indexes	[9]	[10]	[11]	[12]	[13]	Proposed
Software complexity	Complex	Simple	Complex	Simple	Complex	Simple
Input data	Output voltage cell	Current load	Output voltage inverters	Capacitor voltage and current	53 inputs	Output voltage cell
Modularity and expandability	High	Low	Low	High	Low	High
Location time	40 ms	20 ms	10 ms	1.4 ms	20 ms	1 ms
Type of inverter	CHB	CHB	CHB	NPC	MMC	CHB
Hardware configuration	Additional voltage sensors at the output of each cell	Existing hardware	Additional voltage sensors at the output of inverters	Existing hardware	A lot of sensors	Additional voltage sensor at the output of each cell
Noise robustness	Weak	Weak	Weak	Weak	Weak	Strong