Elimination of Harmonics in Multilevel Inverter Using Multi-Group Marine Predator Algorithm-Based Enhanced RNN

Table 1

THD analysis of different optimization algorithms.

Methods	Modulation index
	m a = 0.4	m a = 0.5	m a = 0.6	m a = 0.7	m a = 0.8	m a = 0.9	m a = 1.0
HHO-THD [44]	13.5	9	5.5	3.5	5.8	3.2	3.8
WOA-THD [45]	13.3	12	5.6	4	7	2.9	6
MPA-THD [46]	5	3	2.5	3	4	2.2	1.6
MGMPA-THD	4.5	2.5	2.2	2	2.5	1.9	1.5