Modified Repetitive Controller for Disturbance Rejection of Peristaltic Pump

This paper presents the design and implementation of an modified repetitive controller for periodic disturbance rejection of peristaltic pump. An observer based rejection of periodic disturbance is shown here for speed control of peristaltic pump. The input output data samples are taken over finite interval of time with an data acquisition system. Plant model is obtained by using the System Identification Toolbox in MATLAB. Fitness of the model is investigated by applying different dataset in order to achieve the best fit model. Simulation is performed using MATLAB. A comparative study on time domain performance of the system is carried out here to establish the effectiveness of the proposed controller in terms of time domain performances.