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Vol. 140, No. 5, May 2012, pp. 88-95

 

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Implementation of PID Controller in MATLAB for Real-time Position Control of Faulhaber DC Micromotor

 

* Manjunatha Reddy H. K., Immanuel J., Shrimanth Sudheer L., Parvathi C. S., and Bhaskar P.

* Department of Electronics, Govt. First Grade College, Shikaripura 577427, KA, India

Department of Instrumentation Technology, Gulbarga University Post Graduate Centre,

Yerigera 584133, Raichur, KA, India

Tel.: +91 9448823002

E-mail: manjunathareddy_hk@yahoo.co.in

 

 

Received: 4 April 2012   /Accepted: 23 May 2012   /Published: 31 May 2012

Digital Sensors and Sensor Sysstems

 

Abstract: In this study, the Proportional-plus-Integral-plus-Derivative (PID) controller is implemented through MATLAB script file for real-time angular position control of a Faulhaber DC Micromotor. MATLAB serves as a good alternative to low-level programming languages such as C. The entire process of data transfer between PC and external world or vice-versa is controlled by programming through script files in MATLAB. Different standard test command signals such as step, square, stair case, and ramp are applied. The controller implemented in MATLAB provides better response in terms of fast rise time, settling time, and reduced steady state error. The experimentally obtained results show the closer tracking response with the standard test inputs. An indigenously designed AD-DA board is interfaced to PC through PCI digital input/output and timer (DIOT) card to carry out the proposed real time study.

 

Keywords: MATLAB, DC micromotor, Angular position, PID

 

 

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