Disturbance rejection control for non-minimum phase systems with optimal disturbance observer.

@article{Wang2015DisturbanceRC,
  title={Disturbance rejection control for non-minimum phase systems with optimal disturbance observer.},
  author={Lu Wang and Jianbo Su},
  journal={ISA transactions},
  year={2015},
  volume={57},
  pages={
          1-9
        }
}
This paper investigates the disturbance rejection control for stable non-minimum phase (NMP) systems with time delay. A robust disturbance observer (DOB) based control structure is proposed. Specifically, the robust DOB is employed to compensate the uncertain plant into a nominal one, based on which a prefilter is adopted to acquire desired performance. Then, a novel DOB configuration strategy for stable NMP systems is proposed. This strategy synthesizes the internal and robust stability… CONTINUE READING

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