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Research Papers: Gas Turbines: Controls, Diagnostics, and Instrumentation

Multiobjective Robust Regulating and Protecting Control for Aeroengines

[+] Author and Article Information
Daren Yu

School of Energy Science and Engineering, Harbin Institute of Technology, 150001 Heilongjiang, P.R.C.yudaren@hcms.hit.edu.cn

Xiaofeng Liu

School of Energy Science and Engineering, Harbin Institute of Technology, 150001 Heilongjiang, P.R.C.lxfryn@gmail.com

Wen Bao

School of Energy Science and Engineering, Harbin Institute of Technology, 150001 Heilongjiang, P.R.C.baowen@hit.edu.cn

Zhiqiang Xu

School of Energy Science and Engineering, Harbin Institute of Technology, 150001 Heilongjiang, P.R.C.xuzhiqiang@hit.edu.cn

J. Eng. Gas Turbines Power 131(6), 061601 (Jul 13, 2009) (10 pages) doi:10.1115/1.2903905 History: Received August 16, 2007; Revised January 03, 2008; Published July 13, 2009

The multiobjective regulating and protecting control method presented here will enable improved control of multiloop switching control of an aeroengine. The approach is based on switching control theory, the switching performance objectives and the strategy are given, and a family of H proportional-integral-derivative controllers was designed by using linear matrix inequality optimization algorithm. The simulation shows that using the switching control design method not only can improve the dynamic performance of the engine control system but also can guarantee the stability in some peculiar occasions.

Copyright © 2009 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Architecture of multicontrollers

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Figure 2

The aeroengine working characteristics maps

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Figure 3

Variation of excess air coefficient with spool speed

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Figure 4

Illustration of dead-stick conditions and possible method for avoidance

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Figure 5

Limitations of the aeroengine works

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Figure 6

Simplified diagram of the aeroengine

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Figure 7

Illustration of typical engine control requirements

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Figure 8

Turbine pressure ratio schedule related to the control requirement

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Figure 9

Region of S(l,r,θ)

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Figure 10

Singular value plot of WS(s) in speed control loop

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Figure 11

Singular value plot of WT(s) in speed control loop

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Figure 12

Reference input of the fuel flow

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Figure 14

Output of fuel flow

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Figure 15

Control signal output of the switching between speed and SMC subcontrol loop

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Figure 16

Step response of T35.

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Figure 17

Control signal output of the switching between speed and temperature subcontrol loop

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Figure 18

Control signal output of the switching between speed and temperature subcontrol loop

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