Robust decentralized control design for aircraft engines: A fractional type

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英文篇名：Robust decentralized control design for aircraft engines: A fractional type 作者：Muxuan ; PAN ; Liangjin ; CAO ; Wenxiang ; ZHOU ; Jinquan ; HUANG ; Ye-Hwa ; CHEN 英文作者：Muxuan PAN;Liangjin CAO;Wenxiang ZHOU;Jinquan HUANG;Ye-Hwa CHEN;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics;The George W.Woodruff School of Mechanical Engineering, Georgia Institute of Technology; 英文关键词：Aircraft engines;;Large-scale systems;;Robust decentralized control;;Uncertainty;;Uniform boundedness;;Uniform ultimate boundedness 中文刊名：HKXS 英文刊名：中国航空学报(英文版) 机构：College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics;The George W.Woodruff School of Mechanical Engineering, Georgia Institute of Technology; 出版日期：2019-02-15 出版单位：Chinese Journal of Aeronautics 年：2019 期：v.32;No.155 基金：supported by the Fundamental Research Funds for the Central Universities, China (No.NJ2016020) 语种：英文; 页：HKXS201902011 页数：14 CN：02 ISSN：11-1732/V 分类号：137-150

摘要

A new decentralized control for aircraft engines is proposed. In the proposed control approach, aircraft engines are considered as uncertain large-scale systems composed of interconnected uncertain subsystems. For each subsystem, the time-varying uncertainty, including parameter disturbances and interconnections in/between subsystems, is depicted by a class of general nonlinear functions. A fractional robust decentralized control with two parts, the nominal one and the fractional one, is presented. The nominal control guarantees the asymptotical stability of the engine system without uncertainty. The fractional part aims at overcoming the influences of uncertainty. Compared to the previous studies, the presented control provides not only an extra flexibility for the system performance tuning by the fraction-type gain but also a facility for the control input calculation. The proposed control approach is applied to a turbofan engine with two subsystems. The computer simulation shows that, in the flight envelope, the fractional control not only guarantees the closed-loop system uniform boundedness and ultimate uniform boundedness but also shows good economy.
        A new decentralized control for aircraft engines is proposed. In the proposed control approach, aircraft engines are considered as uncertain large-scale systems composed of interconnected uncertain subsystems. For each subsystem, the time-varying uncertainty, including parameter disturbances and interconnections in/between subsystems, is depicted by a class of general nonlinear functions. A fractional robust decentralized control with two parts, the nominal one and the fractional one, is presented. The nominal control guarantees the asymptotical stability of the engine system without uncertainty. The fractional part aims at overcoming the influences of uncertainty. Compared to the previous studies, the presented control provides not only an extra flexibility for the system performance tuning by the fraction-type gain but also a facility for the control input calculation. The proposed control approach is applied to a turbofan engine with two subsystems. The computer simulation shows that, in the flight envelope, the fractional control not only guarantees the closed-loop system uniform boundedness and ultimate uniform boundedness but also shows good economy.

引文

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