Discontinuous Speed Control of PMDC Motors With Chattering Attenuation | ||
| IRAQI JOURNAL OF COMPUTERS, COMMUNICATIONS, CONTROL AND SYSTEMS ENGINEERING | ||
| Articles in Press, Accepted Manuscript, Available Online from 30 March 2023 | ||
| Document Type: Research Paper | ||
| Author | ||
| bashar midhat* | ||
| Control and Systems Engineering Department, University of Technology, Baghdad, Iraq | ||
| Abstract | ||
| In most applications, electric drives are actuated using on/off devices due to their low cost and also due to the relatively high power consumption of the electric drives which makes applying linear power amplifiers very costly. In this paper, the operation of PMDC motors under discontinuous control action is addressed. Analysis are made for the problem of speed control of PMDC motors including tracking of variable desired angular velocity and in presence of external load disturbance torque. In addition, to reduce chattering, boundary layer has been added. Both suggested control techniques have been applied to a PMDC motor model in a software simulation using MATLAB. The results of both schemes have been plotted together to show the difference in performance. The results show the better performance of the boundary layer technique due to the reduced chattering. DC motors are widely used in many applications to provide rotational mechanical motion. Due to their direct linear relation between the armature voltage and angular velocity, the DC motors are considered to be easier to control and the actuating circuits are less expensive. | ||
| Keywords | ||
| PMDC Motor,,; ,،,؛Discontinuous Control,,; ,،,؛Boundary Layer | ||
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