Rejection of Periodic Disturbances with Unknown Frequency for Multivariable Systems
نویسندگان
چکیده
Abstract. Reference trajectory asymptotic tracking and disturbance rejection are an important field of control theory. In this paper, we are interested on the tracking of reference trajectories and the rejection of periodic disturbances with unknown frequency for multivariable systems. If the frequency is known, a classical solution is to use a multivariable repetitive generalized predictive control law. If the frequency is unknown, the solution is to combine the multivariable repetitive generalized predictive control with an on-line frequency estimator. The method based on the magnitude/phase locked loop is used to solve the estimation frequency problem. The simulation results are satisfactory and show a good performances in terms of rejecting periodic disturbances and reference trajectories tracking.
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