TY - CONF
T1 - Wide-range robust control of Combustion instability
AU - Hong, Boe Shong
AU - Ray, Asok
AU - Yang, Vigor
N1 - Funding Information:
The research work reported in this paper was supported in part by the Office of Naval Research under Grant No. N00014-96-1-0405, and in part by The Pennsylvania State University.
PY - 2000
Y1 - 2000
N2 - 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.
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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U2 - 10.2514/6.2000-1027
DO - 10.2514/6.2000-1027
M3 - Paper
AN - SCOPUS:85087597700
T2 - 38th Aerospace Sciences Meeting and Exhibit 2000
Y2 - 10 January 2000 through 13 January 2000
ER -