Networked Guaranteed Cost Control for Turbofan Aero-engines
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摘要
In this paper, a guaranteed cost controller is designed for a mixed-flow two-spool turbofan engine to ensure its dynamical performance under networked conditions. The linear state-space engine model is first identified, based on which a networked engine control(NEC) system is established where the transmission delay and the packet dropout are considered simultaneously. Then the networked guaranteed cost control theory is introduced which guarantees both the robustness against delay/dropout and the satisfactory dynamic performance. This controller design is formulated as an optimization problem which is solved by the cone complementarity linearization algorithm. In the meanwhile, the corresponding performance index is also calculated, which provides a reference for the future development of the distributed engine control system. Finally, simulations are performed on an aerothermodynamics component-level engine simulator to demonstrate the validity and applicability of the proposed approach.
In this paper, a guaranteed cost controller is designed for a mixed-flow two-spool turbofan engine to ensure its dynamical performance under networked conditions. The linear state-space engine model is first identified, based on which a networked engine control(NEC) system is established where the transmission delay and the packet dropout are considered simultaneously. Then the networked guaranteed cost control theory is introduced which guarantees both the robustness against delay/dropout and the satisfactory dynamic performance. This controller design is formulated as an optimization problem which is solved by the cone complementarity linearization algorithm. In the meanwhile, the corresponding performance index is also calculated, which provides a reference for the future development of the distributed engine control system. Finally, simulations are performed on an aerothermodynamics component-level engine simulator to demonstrate the validity and applicability of the proposed approach.
引文
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