Feedback control of combustion instabilities from within limit cycle oscillations using H∞ loop-shaping and the ν-gap metric

@inproceedings{Li2016FeedbackCO,
  title={Feedback control of combustion instabilities from within limit cycle oscillations using H∞ loop-shaping and the ν-gap metric},
  author={Jingxuan Li and Aimee S. Morgans},
  booktitle={Proceedings. Mathematical, physical, and engineering sciences},
  year={2016}
}
Combustion instabilities arise owing to a two-way coupling between acoustic waves and unsteady heat release. Oscillation amplitudes successively grow, until nonlinear effects cause saturation into limit cycle oscillations. Feedback control, in which an actuator modifies some combustor input in response to a sensor measurement, can suppress combustion instabilities. Linear feedback controllers are typically designed, using linear combustor models. However, when activated from within limit cycle… CONTINUE READING
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