Wide-range robust control of Combustion instability

Boe Shong Hong, Asok Ray, Vigor Yang

Research output: Contribution to conferencePaper

Abstract

This paper presents the concept and design of a two-layer robust control system for suppression of combustion instabilities over a wide range of operation. The control law is synthesized based on a multiple-time-scale model of combustion dynamics. Control actions on the fast-time scale are provided by secondary fuel injection, realized as modulation of the primary fuel flow, and are gain-scheduled according to the variations of mean-flow temperature and velocity on the slow-time scale. The robust control law is formulated based on the concept of linear parameter varying (LPV) L2 -gain in the setting of differential game theory. Simulation experiments have been conducted to evaluate the control law under wide-range operation of a generic combustor in terms of the trade-off among: (i) fuel injection rate and pressure oscillation; (ii) transient and steady responses; and (iii) stability robustness and performance.

Original languageEnglish (US)
StatePublished - Dec 1 2000
Event38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States
Duration: Jan 10 2000Jan 13 2000

Other

Other38th Aerospace Sciences Meeting and Exhibit 2000
CountryUnited States
CityReno, NV
Period1/10/001/13/00

Fingerprint

trajectory control
combustion stability
Robust control
combustion
Fuel injection
timescale
fuel injection
game theory
Game theory
secondary injection
Combustors
differential games
trade-off
control system
fuel flow
pressure oscillations
oscillation
Modulation
Control systems
transient response

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Hong, B. S., Ray, A., & Yang, V. (2000). Wide-range robust control of Combustion instability. Paper presented at 38th Aerospace Sciences Meeting and Exhibit 2000, Reno, NV, United States.
Hong, Boe Shong ; Ray, Asok ; Yang, Vigor. / Wide-range robust control of Combustion instability. Paper presented at 38th Aerospace Sciences Meeting and Exhibit 2000, Reno, NV, United States.
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Hong, BS, Ray, A & Yang, V 2000, 'Wide-range robust control of Combustion instability' Paper presented at 38th Aerospace Sciences Meeting and Exhibit 2000, Reno, NV, United States, 1/10/00 - 1/13/00, .

Wide-range robust control of Combustion instability. / Hong, Boe Shong; Ray, Asok; Yang, Vigor.

2000. Paper presented at 38th Aerospace Sciences Meeting and Exhibit 2000, Reno, NV, United States.

Research output: Contribution to conferencePaper

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AU - Ray, Asok

AU - Yang, Vigor

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AB - This paper presents the concept and design of a two-layer robust control system for suppression of combustion instabilities over a wide range of operation. The control law is synthesized based on a multiple-time-scale model of combustion dynamics. Control actions on the fast-time scale are provided by secondary fuel injection, realized as modulation of the primary fuel flow, and are gain-scheduled according to the variations of mean-flow temperature and velocity on the slow-time scale. The robust control law is formulated based on the concept of linear parameter varying (LPV) L2 -gain in the setting of differential game theory. Simulation experiments have been conducted to evaluate the control law under wide-range operation of a generic combustor in terms of the trade-off among: (i) fuel injection rate and pressure oscillation; (ii) transient and steady responses; and (iii) stability robustness and performance.

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Hong BS, Ray A, Yang V. Wide-range robust control of Combustion instability. 2000. Paper presented at 38th Aerospace Sciences Meeting and Exhibit 2000, Reno, NV, United States.