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Experimental Investigation of the Proportional Controller - Based Model of DC Servo Motor

Journal: International Journal of Science and Research (IJSR) (Vol.10, No. 8)

Publication Date:

Authors : ; ;

Page : 1171-1177

Keywords : DC servo motor; proportional controller; gain; time constant; Simulink;

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Direct Current (DC) servo motors or simply DC motors play a significant role in many industrial applications such as manufacturing of plastic, precise positioning of the equipment, and operation of computer - controlled systems. This paper focuses to develop a first - order theoretical model of a DC servo motor with a Proportional (P) controller. The model thus developed is based on the experimentally determined ?Gain? and ?Time Constant? from a DC motor apparatus operated through a P controller. The theoretical model is then simulated in a MATLAB Simulink environment. Its step response results are compared with those obtained from the experiments with the P controller as an effective means of validation. The comparison showed good agreement. Both the experiment and simulation results reveal that an increase in the Proportional controller gain results in an increase in the motor output at any given time instance and reduction in the time constant under transient conditions. The theoretical model for the DC servo motor with a P controller has proven that application of it in the control systems improves the transient response of the DC servo motor that reflects upon the performance of such systems.

Last modified: 2022-02-15 18:36:48