Abstract
The work presented in this paper is about a modified design approach of a conventional repetitive controller with a state feedback loop for periodic disturbance compensation of peristaltic pump. It explores the inherent property of repetitive controller for periodic disturbance rejection, and the design problem is further extended to a robust stabilization problem in the presence of time-varying uncertainties. Repetitive and state-feedback controller gains are chosen by obtaining a linear-matrix-inequality from Lyapunov-Krasovskii functional. A three-roller rotary pump with a dc motor is chosen here as plant model for experimental data collection and system identification. The best model validation is done at 82.43% goodness of fit. Time-varying additive uncertainty is taken into consideration along with the nominal plant model obtained from system identification. Proposed controller design method is demonstrated and validated by performing MATLAB simulation considering peristaltic pump plant model. A comparative study has been carried out with the conventional repetitive controller to examine the robust property. It is observed that the proposed state feedback repetitive controller outperforms the conventional one for periodic disturbance rejection of the pump and thus desired tracking performance is achieved.
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Dey, N., Mondal, U. & Sengupta, A. Periodic Disturbance Compensation of Peristaltic Pump: A State Feedback Repetitive Controller-Based Approach. J. Inst. Eng. India Ser. B (2022). https://doi.org/10.1007/s40031-022-00751-5
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DOI: https://doi.org/10.1007/s40031-022-00751-5