Power Electronics Handbook, 4th Edition

$V_{\mathit{Hrms}}=\sqrt{{\left(V_{rms}\right)}^2-{\left(V_1\right)}^2}=\sqrt{{\left(\frac{2}{\sqrt{5}}\right)}^2-{\left(\frac{2\sqrt{2}}{\pi }cos\left(\frac{\pi }{10}\right)\right)}^2}=0.2585208456$

  (15.88)

Hence, total harmonic distortion is

$THD=\frac{\mathrm{r}.\mathrm{m}.\mathrm{s}.\mathrm{total}\mathrm{harmonic}\mathrm{voltage}}{\mathrm{r}.\mathrm{m}.\mathrm{s}.\mathrm{total}\mathrm{voltage}}=\frac{0.2585208456}{2/\sqrt{5}}=0.2890350922\mathrm{or}28.9\%\mathrm{Or}28.9035\%$

  (15.89)

15.4.1.3 Pulse Width Modulation Mode of Operation

If a five-phase voltage-source inverter is operated in PWM mode, apart from the already described 10 states, there are additional 22 switching states. These remaining 22 switching states encompass three possible situations: all the states when four switches from upper (or lower) half and one from the ...