Digitally-implemented naturally sampled PWM suitable for multilevel converter control

@inproceedings{Walker2003DigitallyimplementedNS,
  title={Digitally-implemented naturally sampled PWM suitable for multilevel converter control},
  author={Geoffrey R. Walker},
  year={2003}
}
For dynamic closed loop control of a multilevel converter with a low pulse number (ratio of switching frequency to synthesized fundamental), natural sampled pulse-width modulation (PWM) is the best form of modulation. Natural sampling does not introduce distortion or a delayed response to the modulating signal. However previous natural sampled PWM implementations have generally been analog. For a modular multilevel converter, a digital implementation has advantages of accuracy and flexibility… CONTINUE READING

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