First-Order Linear Active Disturbance Rejection Control for Turbofan Engines

Hui-Yu Jin () and Yang Chen
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Hui-Yu Jin: School of Aerospace Engineering, Xiamen University, Xiamen 361102, China
Yang Chen: Huawei Technologies France SASU, Xiamen 361102, China

Energies, 2023, vol. 16, issue 6, 1-17

Abstract: Proportional-integral (PI) control is widely used in turbofan-engine control, while first-order linear active disturbance rejection control (FOLADRC) is a possible approach to update it. This paper investigates FOLADRC. In methodology, it proposes a new block diagram of FOLADRC, which shows that FOLADRC can be viewed as a PI controller, a low-pass feedback filter, and a pre-filter. The low-pass filter helps to reject high-frequency measurement noise, while the pre-filter can attenuate overshoot in step response. In simulation, 14 published linearized model matrices of NASA’s CMAPSS-1 90k engine model are used to verify the above theory. Simulations show one FOLADRC controller can be simultaneously used for the 14 linear models and guarantee that all the 14 low-pressure turbine speed control loops have enough phase margin and no overshoot. Thus, replacing several PI controllers with one FOLADRC controller is possible, and FOLADRC can be used to simplify the control system design of turbofan engines.

Keywords: turbofan engine; speed control; first-order linear active disturbance rejection control; PI control; filter; phase margin (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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