首页|Design method of multivariable PI controller for turboprop engine based on equivalent transfer function

Design method of multivariable PI controller for turboprop engine based on equivalent transfer function

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Traditional centralized Proportional Integral(PI)controller design methods based on Equivalent Transfer Functions(ETFs)have poor decoupling effect in turboprop engines.In this paper,a centralized PI design method based on dynamic imaginary matrix and equivalent transfer function is proposed.Firstly,a method for solving equivalent transfer functions based on the dynamic imaginary matrix is proposed,which adopts dynamic imaginary matrix to describe the dynamic characteristics of the system,and obtains the equivalent transfer function based on the dynamic imaginary matrix characteristics.Secondly,for the equivalent transfer function,a central-ized PI control gain is designed using the Taylor expansion method.Meanwhile,this paper further proves that the centralized PI design method proposed in this paper has integral stability.Consid-ering the impact of altitude and Mach number on turboprop engines,a linear feedforward control method based on the transfer function matrix is further proposed based on the centralized PI con-troller,and the stability of the entire comprehensive control method is proved.Finally,to ensure the safe and effective operation of the turboprop engine,a temperature and torque limiting protection controller is designed for the turboprop engine.Simulation results show that the centralized PI con-troller design method and linear feedforward control method proposed can effectively improve the control quality of turboprop engine control systems.

Multivariable control sys-temsEquivalent transfer functionDisturbance compensation controlControl parameter designTurboprop engine control

Shancheng LI、Yong WANG、Haibo ZHANG

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Jiangsu Province Key Laboratory of Aerospace Power System,College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

National Natural Science Foundation of ChinaChina Postdoctoral Science FoundationMajor Projects of National Science and Technology,ChinaAdvanced Aviation Power Innovation Workstation Project,ChinaBasic Research Business Fees for Central Universities,ChinaNanjing University of Aeronautics and Astronautics Forwardlooking Layout Research Project,China

522024742023M731655J2019-I-0020-0019HKCX2022-01-026-03NT20230041002-ILA22037-1A22

2024

10.1016/j.cja.2024.05.023

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(9)
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