Wide-range robust control of Combustion instability

Boe Shong Hong; Asok Ray; Vigor Yang

doi:10.2514/6.2000-1027

Wide-range robust control of Combustion instability

Boe Shong Hong, Asok Ray, Vigor Yang

Mechanical Engineering

Research output: Contribution to conference › Paper › peer-review

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 language	English (US)
DOIs	https://doi.org/10.2514/6.2000-1027
State	Published - 2000
Event	38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States Duration: Jan 10 2000 → Jan 13 2000

Other

Other	38th Aerospace Sciences Meeting and Exhibit 2000
Country/Territory	United States
City	Reno, NV
Period	1/10/00 → 1/13/00

All Science Journal Classification (ASJC) codes

Space and Planetary Science
Aerospace Engineering

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10.2514/6.2000-1027

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title = "Wide-range robust control of Combustion instability",

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.",

author = "Hong, {Boe Shong} and Asok Ray and Vigor Yang",

note = "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.; 38th Aerospace Sciences Meeting and Exhibit 2000 ; Conference date: 10-01-2000 Through 13-01-2000",

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doi = "10.2514/6.2000-1027",

language = "English (US)",

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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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T2 - 38th Aerospace Sciences Meeting and Exhibit 2000

Y2 - 10 January 2000 through 13 January 2000

ER -

Wide-range robust control of Combustion instability

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