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Table 1 %THD & switching 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. 0.460 35.46 47.39 59.32 73.95 88.73 8.81
2. 0.473 35.33 46.87 58.47 72.40 87.68 8.62
3 0.485 35.33 46.32 57.82 70.96 86.56 8.98
4 0.495 35.44 45.78 57.39 69.77 85.49 8.88
5 0.500 35.52 45.49 57.20 69.20 84.92 8.77
6 0.555 33.75 44.94 53.54 65.22 77.14 7.60
7 0.600 26.64 43.93 51.53 62.39 72.50 7.24
8 0.655 18.98 34.82 51.33 57.94 69.32 6.32
9 0.750 12.79 21.01 35.81 56.59 61.31 5.63
10 0.755 11.66 20.93 34.83 54.41 62.67 5.33
11 0.800 6.569 18.94 27.18 45.13 62.24 5.55