Integral Windup Protection PI Control for Turbofan Engine with H2/H∞ Optimization: An LMI-Based approach

摘要

The main fuel calculated by the idle controller is constrained by the acceleration, deceleration controllers and actuators, which can easily raise the issue of integrator windup. This paper proposes an anti-windup compensator design approach that attempts to minimize the performance deterioration of the whole control system. One of the notable features of the proposed approach lies in that the H2/H∞ indices which are central to the performance of the nonlinear closed-system can be optimized, provided that certain matrix-related conditions are satisfied. Furthermore, the design of the compensator has been formulated and solved as an optimization problem in the framework of the linear matrix inequality (LMI). Finally, after applying this scheme to the control of a turbofan aeroengine, experimental results demonstrate the effectiveness of the proposed approach.