Application of Parameter-Dependent Robust Control Synthesis to Turbofan Engines

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Application of Parameter-Dependent Robust Control Synthesis to Turbofan Engines

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1999

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American Institute of Aeronautics and Astronautics

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Article

Abstract

Recent results in multivariable robust control synthesis for linear parameter-varying (LPV) systems are applied to the control of a turbofan engine over a wide range of power codes. Seven linear, time-invariant models are used in the control design. The resulting LPV controller consists of seven linear controllers, gain scheduled via linear interpolation. This gain-scheduled controller is obtained directly as part of the described design process, as opposed to conventional processes, where the gain schedules are developed after the fact to connect point designs. A model matching approach is employed such that the resulting closed loop resembles a decoupled set of second-order systems with specified rise times and overshoots. The performance of linear H point designs are compared with the LPV controller at fixed operating points. A nonlinear simulation is performed with the turbofan engine and LPV controller schedules as a function of the power code. The LPV controller exhibits excellent tracking of reference commands as the power code varies in time.

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Reprinted with permission of the American Institute of Aeronautics and Astronautics, Inc. See http://www.aiaa.org/content.cfm?pageid=2 for more information.

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Previously Published Citation

Wolodkin, G., Balas, G. J., and Garrard, W. L. (1999). "Application of Parameter-Dependent Robust Control Synthesis to Turbofan Engines." Journal of Guidance, Control, and Dynamics. 22(6), 833-838.

Suggested citation

Wolodkin, Gregory; Balas, Gary J.; Garrard, William L.. (1999). Application of Parameter-Dependent Robust Control Synthesis to Turbofan Engines. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/37123.

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