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Table 2 %THD & firing angles in degrees at various M I

From: Harmonic analysis and FPGA implementation of SHE controlled three phase CHB 11-level inverter in MV drives using deterministic and stochastic optimization techniques

S. no MI α1 α2 α3 α4 α5 %THD
1. 0.1 38.17 57.89 89.99 89.99 90 19.67
2. 0.2 10.57 21.68 89.77 89.84 89.84 12.81%
3. 0.3 19.16 38.61 59.91 89.98 89.99 11.33%
4. 0.4 6.840 18.79 31.41 75.18 89.99 11.93%
5. 0.5 4.671 30.83 37.44 48.55 89.42 11.12%
6. 0.6 11.64 33.58 33.74 56.79 78.11 10.67%
7. 0.7 0.001 11.45 20.78 40.12 82.00 9.17%
8. 0.8 6.62 23.10 44.42 54.37 63.57 8.59%
9. 0.9 4.85 5.243 24.95 34.12 44.23 7.30%
10. 0.97 4.82 12.69 23.32 24.46 37.27 6.19%
11. 1 3.24 9.496 17.17 28.03 28.14 6.85%