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KMID : 0615219910160010231
Journal of Kwangju Health
1991 Volume.16 No. 1 p.231 ~ p.246
A Study on the DC Servo Motor Speed Control Using A Discrite PI Controller System
¹ÚÇؾÏ/Park HA
Abstract
A PI controller has a advantage that is able to control a respones of the system, not by needing a ceratin parmeter, but by selecting appropriatly the coeffients k,(proportional constant)and k,(integral constant) as a control factor.
A descrite PI controller is implemented easily using a micro-processor, and it can be confirmed to a adaption of a system and real time proceesing.
In this paper, a speed controller by discrite PI control using a IBM PC/AT (12MH(z)) as a micro-processor is implemented and applied to a DC servo motor. In designing the discrite PI controller, A sampling time and a speed is than calculate the gain. Therefore the speed of a DC servo motor is obtained and controlled regulaly.
The designed and manufactured descrite PI control system is experimented.
The result shows the good respone at the 250RPM and 500RPM on the load using the load-spring. The speed error is under 1% on the steady load, but nearly 1~2% on the transient load.
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