Abstract:
A stabilization problem for linear plants under conditions of the unavailable state vector, external sinusoidal disturbance and unknown constant delay is addressed in thi...Show MoreMetadata
Abstract:
A stabilization problem for linear plants under conditions of the unavailable state vector, external sinusoidal disturbance and unknown constant delay is addressed in this paper. Plant parameters, lower bound on the disturbance frequency, upper bound on the delay are assumed to be known, while all parameters of the sinusoidal disturbance (a bias, amplitude, frequency and phase) are unknown. The task is carried out in several steps. First, a delay-free disturbance observer based on the frequency estimation scheme is constructed. Second, a delay identifier based on the gradient approach and regression model is designed and used to estimate the exact value. Third, stabilization of the plant state to zero is conducted using a predictor-based feedback with the estimated time delay. An example confirming the relevance of the proposed approach is presented.
Date of Conference: 21-24 June 2016
Date Added to IEEE Xplore: 08 August 2016
ISBN Information: