Research Article

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 contentsRequired tuning variables
AlgorithmTHD (%)θ1θ2θ3θ4θ5θ6θ75thorder7thorder11thorder13thorder17thorder19thorder

BFOA2.861.18.268.916.517.9525.638.531.85%0.12%0.68%0.41%0.56%0.6%3
GA3.616.188.415.3315.832.6542.980.37%1.4%1.52%1.32%0.74%1.02%3
PSO2.417.911116.2726.0130.6341.360.31%0.2%0.9%0.16%0.65%0.34%4
MBWO1.834.89.241421.729.7738.8858.310.3%0.21%0.49%0.07%0.57%0.28%2