Discussion
From a 560 V dc link, the maximum line-to-line fundamental a space vector modulated inverter can produce is about
Answer: B
Correct answer: 396 V rms
Space vector modulation gives a maximum peak line-to-line fundamental equal to the dc link voltage, so the rms value is \[ \frac{560}{\sqrt{2}} = 396\ \mathrm{V\ rms}. \] This is about fifteen per cent more than sinusoidal modulation achieves, which is the practical reason space vector modulation is used.
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