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Research Papers

Finite-Time Regulation of Two-Spool Turbofan Engines With One Shaft Speed Control

[+] Author and Article Information
Jiqiang Wang

Jiangsu Province Key Laboratory
of Aerospace Power Systems,
Nanjing University of Aeronautics
and Astronautics,
Nanjing 210016, China;
AVIC Shenyang Engine Design
and Research Institute,
Shenyang 110015, China
e-mail: jiqiang.wang@nuaa.edu.cn

Georgi Dimirovski

Department of Computing and
Control Engineering,
Dogus University of Istanbul,
Istanbul 34722, Turkey
e-mail: gdimirovski@dogus.edu.tr

Hong Yue

Industrial Control Centre,
University of Strathclyde,
Glasgow G1 1XW, UK
e-mail: hong.yue@strath.ac.uk

Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received July 1, 2015; final manuscript received March 24, 2016; published online May 25, 2016. Assoc. Editor: Junmin Wang.

J. Dyn. Sys., Meas., Control 138(8), 081005 (May 25, 2016) (7 pages) Paper No: DS-15-1297; doi: 10.1115/1.4033310 History: Received July 01, 2015; Revised March 24, 2016

Nonlinear control of aircraft engines has attracted much attention in consideration of the inherent nonlinearity of the engine dynamics. Most of the nonlinear design techniques, however, require the information from the rotational speeds of both high-pressure compressor and fan. This is not desirable from engine health management perspective, and this paper proposes a single sensor measurement and single actuator control approach. The proposed method can provide fast regulation of engine speed in a finite-time in comparison with conventional infinite time stability. Important results are obtained on both controller design and disturbance tolerance. Numerical examples are provided for validation of the proposed finite-time controller, demonstrating fast regulation property and remarkable disturbance tolerance capability.

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Figures

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Fig. 1

Schematic representation of three basic functions of control system as reflected in a compressor map

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Fig. 2

Performance of the finite-time control with two-sensor measurements and PI control

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Fig. 3

Control signals for both finite-time control with two-sensor measurements and PI control

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Fig. 4

Performance of the finite-time control: one-sensor versus two-sensor measurement

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Fig. 5

Control signals for finite-time control: one-sensor versus two-sensor measurement

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Fig. 6

Performance of the single sensor measurement and single actuator finite-time controller (27) under persistent disturbance of magnitude A = 2

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Fig. 7

Control signals for both finite-time controller (27) and PI control under disturbances

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Fig. 8

Performance of the single sensor measurement and single actuator finite-time controller (27) under persistent disturbance of different magnitudes: left to the legend is the magnified view for low-pressure turbine speed ΔnL

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