Simulation of ICA-PI Controller of DC Motor in Surgical Robots for Biomedical Application

Abstract

The medical device industry is considered a hub of innovation with constantly improving designs and processes, the possibilities seem endless. Over the past 20 years, dc motors have played its role in the development of medical instruments like surgical robots, plate readers, liquid and specimen handling systems, chromatography, and In Vitro diagnostic machines. Regardless of what ever the application may be, all devices in the medical industry should have high Reliability and flexibility. This paper presents a new controller model using Imperialist Competitive Algorithm (ICA) for efficient search and optimization of Proportional Integral controller parameter in order to achieve a better close loop control of the dc motor in bio-medical application. This control method was simulated using MATLAB/SIMULINK to control dc motor. From the simulation, it was found that the proposed method gives better performance with improved response in any user defined function as the settling time, overshoot and speed error are reduced.