Abstract
This paper provides an output tracking control system design strategy based on an output feedback control with an adaptive parallel feedforward compensator (PFC) for discrete-time systems. In the proposed method, a PFC is introduced for non-almost strictly positive real (ASPR) systems in order to guarantee the stability of the designed adaptive control system. The PFC parameters are adaptively adjusted to remain the ASPR-ness of the resulting augmented system with the PFC. Moreover, in order to attain output tracking, a two-degree-of-freedom output feedback control system with an adaptive neural network (NN) feedforward control is designed. The stability of the resulting adaptive control system is analyzed theoretically and the effectiveness of the proposed method is confirmed through numerical simulations.
Published Version
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