Journal Article

Multi-Valve Coordinated Disturbance Rejection Control for an Intake Pressure System Using External Penalty Functions

Xiao, Gaoxi, Shi, Duoqi, Dan, Zhihong, Zhai, Chao, Zhang, Louyue, Zhang, Hehong, Wang, Xi

2025

Overview

Altitude test facilities for aero-engines employ multi-chamber, multi-valve intake systems that require effective decoupling and strong disturbance rejection during transient tests. This paper proposes a coordinated active disturbance rejection control (ADRC) scheme based on external penalty functions. The chamber pressure safety limit is formulated as an inequality-constrained optimization problem, and an exponential penalty together with a gradient based algorithm is designed for dynamic constraint relaxation, with guaranteed global convergence. A coordination term is then integrated into a distributed ADRC framework to yield a multi-valve coordinated ADRC controller, whose asymptotic stability is established via Lyapunov theory. Hardware-in-the-loop simulations using MATLAB/Simulink and a PLC demonstrate that, under ±3 kPa pressure constraints, the maximum engine inlet pressure error is 1.782 kPa (77.1% lower than PID control), and under an 80 kg/s2 flow-rate disturbance, valve oscillations decrease from ±27% to ±5%. These results confirm the superior disturbance rejection and decoupling performance of the proposed method.

• Publisher: MDPI AG
• Subject: active disturbance rejection control (ADRC) / Algorithms / Altitude / altitude test facilities / Altitude tests / Chambers / Constraints / Control valves / coordinated control / Decoupling / Efficiency / Engine inlets / external penalty functions / External pressure / Flow velocity / Hardware-in-the-loop simulation / inequality constrained optimization / Inlet pressure / Intake systems / Optimization / Penalty function / pressure control / Proportional integral derivative / Rejection / Simulation / Simulation methods / Test facilities / Unmanned aerial vehicles / Valves