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

• DOI: 10.1016/j.cja.2024.05.023
• Publication Date: 2024-05-23T18:46:41Z
• Authors: Shancheng LI; Yong WANG; Haibo ZHANG
• Keywords: Turboprop

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