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A Multi-loop Switching Controller for Aircraft Gas Turbine Engine with Stability Proof

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  • Control Theory and Applications
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Abstract

In this paper, a Min-Max switching controller containing multiple state feedback regulators and fuel flow rate saturation is designed for a high bypass two-spool turbofan engine. Due to the switching nature of Min-Max algorithm and the presence of saturation function, stability analysis is an important issue in the process of controller design. Therefore, a methodology is presented to analyze the stability of the closed loop system. For this objective, the Min and Max selectors and the saturation block are replaced by their nonlinear equivalents and the structure of the control system is transformed into the canonical configuration of Lure’s system. Then, the condition for absolute stability is extracted using the Multivariable Circle Criterion. An asymptotic stability proof is achieved for the closed loop system and the performance of the designed multiregulator Min-Max controller in tracking a desired fan speed scenario and limit management is compared with the well-known Min-Max/SMC technique.

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Authors and Affiliations

  1. Systems Simulation and Control Laboratory, School of Mechanical Engineering, Iran University of Science and Technology (IUST), Tehran, 16846-13114, Iran

    Amin Imani & Morteza Montazeri-Gh

Authors
  1. Amin Imani
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  2. Morteza Montazeri-Gh
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Corresponding author

Correspondence to Amin Imani.

Additional information

Recommended by Associate Editor Guangdeng Zong under the direction of Editor Myo Taeg Lim.

Amin Imani received the Ph.D. degree in Mechanical Engineering from Iran University of Science and Technology (IUST), Tehran, Iran in 2018. His research interests include nonlinear control, switching control, and gas turbine engine control system.

Morteza Montazeri-Gh is a Full Professor of Mechanical Engineering and also the director of the Systems Simulation and Control Laboratory in the School of Mechanical Engineering at Iran University of Science and Technology. His current research is directed towards simulation, control and diagnosis of gas turbine engine and HIL test.

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Imani, A., Montazeri-Gh, M. A Multi-loop Switching Controller for Aircraft Gas Turbine Engine with Stability Proof. Int. J. Control Autom. Syst. 17, 1359–1368 (2019). https://doi.org/10.1007/s12555-018-0803-5

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  • DOI: https://doi.org/10.1007/s12555-018-0803-5

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