THD Reduction of Improved Single Source MLI Using Upgraded Black Widow Optimization Algorithm

Table 3

Developed switching angles to result in minimum voltage THD for applied algorithms.

		Desired switching angles (degree)							Harmonic contents						Required tuning variables
Algorithm	THD (%)	θ1	θ2	θ3	θ4	θ5	θ6	θ7	5^thorder	7^thorder	11^thorder	13^thorder	17^thorder	19^thorder
BFOA	2.86	1.1	8.26	8.9	16.5	17.95	25.6	38.53	1.85%	0.12%	0.68%	0.41%	0.56%	0.6%	3
GA	3.6	1	6.18	8.4	15.33	15.8	32.65	42.98	0.37%	1.4%	1.52%	1.32%	0.74%	1.02%	3
PSO	2.4	1	7.91	11	16.27	26.01	30.63	41.36	0.31%	0.2%	0.9%	0.16%	0.65%	0.34%	4
MBWO	1.83	4.8	9.24	14	21.7	29.77	38.88	58.31	0.3%	0.21%	0.49%	0.07%	0.57%	0.28%	2