OFEP based Adaptive Anti-Windup Control for Nonlinear Systems and Its Stability Analysis

In this paper, we propose an adaptive anti-windup control strategy based on adaptive output feedback control for nonlinear systems with input saturation. For the purpose of realizing this adaptive control system, we introduce a Parallel Feedforward Compensator (PFC) for the nonlinear system, which is do not satisfy the Output Feedback Exponentially Passive (OFEP) conditions, and design an adaptive feedforward input based on Radial Basis Function (RBF) Neural Networks (NN) to reduce the tracking error caused by PFC. Furthermore, the stability of the obtained adaptive anti-windup control system is analyzed and the effectiveness of the proposed method is confirmed through numerical simulations.