Table 6 Variation of THD% versus \({m}_{a}\).

From: A grey wolf optimization-based modified SPWM control scheme for a three-phase half bridge cascaded multilevel inverter

\({m}_{a}\)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

\(TH{D}_{v, ph}\)

19.46

20.06

20.4

20.52

20.44

20.2

19.78

19.22

18.52

17.27

\(TH{D}_{v, line}\)

9.705

11.13

11.98

12.45

12.58

12.44

12.05

11.4

10.44

8.959

\(TH{D}_{i}\)

10.32

10.12

9.912

9.726

9.537

9.351

9.161

9.005

8.842

8.674

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