Title of Paper:Switching Control of Turbofan Engine Based on Double-Layer LPV Model

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Affiliation of Author(s):能源与动力学院

Journal:Tuijin Jishu

Abstract:Aeroengine operates in a broad flight envelope with a wide parameter variation range. It always needs to sacrifice the performance in some regions to guarantee the existence of a single controller for the whole region. To solve the above problem, a switching control of turbofan engine based on double-layer LPV model was proposed. According to the inlet conditions, the full envelope was firstly divided into several locally overlapped sub-regions, and the double-layer LPV model was built for each sub-region respectively and the corresponding Lyapunov functions were calculated. Then, the resulting Lyapunov functions were used to design a family of single LPV controllers for each sub-region. The combination of hysteresis switching strategy and common quadratic Lyapunov function can be used to realize the switching between each sub-region, meanwhile the stability of this closed-loop switching system was also proved. Finally, the simulation results show that this new method can improve the performance and enhance the robustness of the LPV controllers in the full envelope. © 2018, Editorial Department of Journal of Propulsion Technology. All right reserved.

ISSN No.:1001-4055

Translation or Not:no

Date of Publication:2018-12-01

Co-author:Sun, Hao-Bo,Huang Jinquan

Correspondence Author:Pan Muxuan