Vol.2, No 7, 1997 pp. 291 - 300
UDC 62-504:62-501.41
DC MOTOR POSITION CONTROL BY DISCRETE-TIME
VARIABLE STRUCTURE CONTROLLERS
Zoran Jovanović, Goran Golo
University of Niš, Faculty of Electronic Engineering, Niš, Yugoslavia
Abstract. Discrete-time variable structure systems (DTVSS) with
proportional, as well as with proportional-integral control algorithm have
been presented. The properties of discrete time variable structure controller
with proportional action (DTVSCP) and proportional - integral action (DTVSPI)
for step response and external disturbances have been considered. The positional
servo system (with DTVSP and DTVSPI) for ramp test signal has also been
observed. The controllers were designed on the basis of the complete DC
motor model. The object state variables were available for measurement.
The design technique is illustrated by a simulated system.
Key words: variable structure controller, PI controller, discrete
position servo system, DC motor.
DISKRETNI
REGULATORI PROMENLJIVE STRUKTURE U UPRAVLJANJU POZICIJOM JEDNOSMERNOG MOTORA
U radu su prikazani diskretni regulatori promenljive
strukture sa proporcionalnim (DTVSCP) i proporcionalno-integralnim dejstvom
(DTVSCPI). Razmatrane su osobine DTVSCP i DTVSCPI za odskočni odziv i spoljašnje
poremećaje. Takodje, pozicioni servosistem (sa DTVSCP i DTVSCPI) se posmatra
za nagibni ulazni signal. Diskretni regulatori su projektovani na osnovu
potpunog modela motora jednosmerne struje. Sve promenljive stanja objekta
bile su dostupne za merenje.
